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<mods:title id="E08FA851C2FDD98009E8178343133153">The non-Siphonophoran Hydrozoa (Cnidaria) of Salento, Italy with notes on their life-cycles: an illustrated guide</mods:title>
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<mods:namePart id="A5FB30A15AB6E3E06A5E91B989AF2AF3">Camillo, Cristina Gioia Di</mods:namePart>
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<paragraph id="8BEE36C8FF61FF2E9CD60AE1D57DFA14" blockId="151.[151,580,1448,1507]" box="[151,580,1448,1474]" pageId="151" pageNumber="152">
<heading id="D0A681A4FF61FF2E9CD60AE1D57DFA14" bold="true" box="[151,580,1448,1474]" fontSize="11" level="1" pageId="151" pageNumber="152" reason="1">
<taxonomicName id="4C514D4BFF61FF2E9CD60AE1D57DFA14" ID-CoL="488XW" authority="Linnaeus, 1758" authorityName="Linnaeus" authorityYear="1758" box="[151,580,1448,1474]" class="Hydrozoa" family="Campanulariidae" genus="Obelia" kingdom="Animalia" order="Leptothecata" pageId="151" pageNumber="152" phylum="Cnidaria" rank="species" species="dichotoma">
<emphasis id="B925EADAFF61FF2E9CD60AE1D57DFA14" bold="true" box="[151,580,1448,1474]" pageId="151" pageNumber="152">
<emphasis id="B925EADAFF61FF2E9CD60AE1D654FA14" bold="true" box="[151,365,1448,1474]" italics="true" pageId="151" pageNumber="152">Obelia dichotoma</emphasis>
(Linnaeus, 1758)
</emphasis>
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</paragraph>
<paragraph id="8BEE36C8FF61FF2E9CD60A83D613FA35" blockId="151.[151,580,1448,1507]" box="[151,298,1482,1507]" pageId="151" pageNumber="152">
<figureCitation id="136A2A4DFF61FF2E9CD60A83D7CBFA35" box="[151,242,1482,1507]" captionStart="FIGURE 108" captionStartId="152.[151,250,1077,1099]" captionTargetBox="[431,1159,201,1049]" captionTargetId="figure@152.[422,1164,193,1056]" captionTargetPageId="152" captionText="FIGURE 108. Obelia dichotoma: A, general aspect of a colony; B, detail of hydrocladial ramifications; C, detail of hydrotheca and gonotheca; D, medusa (drawn by C. G. Di Camillo). Scale bars: B, 1.0 mm; C, D, 0.5 mm." httpUri="https://zenodo.org/record/242837/files/figure.png" pageId="151" pageNumber="152">Fig. 108</figureCitation>
AD
</paragraph>
<paragraph id="8BEE36C8FF61FF2E9CD6095BD443F9FE" blockId="151.[151,890,1554,1576]" box="[151,890,1554,1576]" pageId="151" pageNumber="152">
See
<bibRefCitation id="EFC04B39FF61FF2E9C83095AD555F9FE" box="[194,620,1554,1576]" pageId="151" pageNumber="152" refString="Pena Cantero, A. L. &amp; Garcia Carrascosa, A. M. (2002) The benthic hydroid fauna of the Chafarinas Islands (Alboran Sea, western Mediterranean). Zoologische Verhandelingen Leiden, 337, 1 - 180." type="journal article">Peña Cantero &amp; García Carrascosa (2002)</bibRefCitation>
for a complete synonymy.
</paragraph>
</subSubSection>
<subSubSection id="C34B6543FF61FF2E9CD6091CD59AF944" pageId="151" pageNumber="152" type="materials_examined">
<paragraph id="8BEE36C8FF61FF2E9CD6091CD59AF944" blockId="151.[151,1436,1621,2006]" pageId="151" pageNumber="152">
<emphasis id="B925EADAFF61FF2E9CD6091CD6B9F9B8" bold="true" box="[151,384,1621,1646]" pageId="151" pageNumber="152">Material examined.</emphasis>
HCUS-S 115p and HCUS-S
<quantity id="4CA99B2DFF61FF2E9E86091CD43FF9B8" box="[711,774,1621,1646]" metricMagnitude="2" metricUnit="m" metricValue="1.15" pageId="151" pageNumber="152" unit="m" value="115.0">115m</quantity>
(Hydrozoa Collection, University of Salento—fauna of the Salento Peninsula)—polyp and medusa stages.
</paragraph>
</subSubSection>
<subSubSection id="C34B6543FF61FF219C8609D4D22AF8E4" lastPageId="152" lastPageNumber="153" pageId="151" pageNumber="152" type="description">
<paragraph id="8BEE36C8FF61FF2E9C8609D4D277F960" blockId="151.[151,1436,1621,2006]" box="[199,1358,1693,1718]" pageId="151" pageNumber="152">
<emphasis id="B925EADAFF61FF2E9C8609D4D668F960" bold="true" box="[199,337,1693,1718]" pageId="151" pageNumber="152">Description</emphasis>
(based on our own observations;
<bibRefCitation id="EFC04B39FF61FF2E9E8A09D4D457F960" author="Stechow" box="[715,878,1693,1718]" pageId="151" pageNumber="152" refString="Stechow, E. (1919) Zur Kenntnis der Hydroidenfauna des Mittelmeeres, Amerikas und anderer Gebiete, nebst Angaben uber einige Kirchenpauersche Typen von Plumulariden. Zoologische Jahrbucher, Abeilung fur Systematik, 42 (1), 1 - 172." type="journal article" year="1919">Stechow 1919</bibRefCitation>
; Ramil &amp; Vervoort 1992;
<bibRefCitation id="EFC04B39FF61FF2E98D009D4D27BF960" author="Cornelius" box="[1169,1346,1693,1718]" pageId="151" pageNumber="152" refString="Cornelius, P. F. S. (1995) NorthWest European Thecate Hydroids and their Medusae. Synopses of the British Fauna, New Series, pt. 1 &amp; 2, 1 - 347 &amp; 1 - 386." type="journal article" year="1995">Cornelius 1995</bibRefCitation>
):
</paragraph>
<paragraph id="8BEE36C8FF61FF2E9C860988D508F800" blockId="151.[151,1436,1621,2006]" pageId="151" pageNumber="152">
<emphasis id="B925EADAFF61FF2E9C860988D60AF90C" bold="true" box="[199,307,1729,1754]" pageId="151" pageNumber="152">Hydroid.</emphasis>
Hydrorhiza as creeping stolon system; colonies erect, very varied in size and shape; hydrocauli monosiphonic, up to
<quantity id="4CA99B2DFF61FF2E9DC409ACD6F3F92B" box="[389,458,1765,1790]" metricMagnitude="-1" metricUnit="m" metricValue="3.5" pageId="151" pageNumber="152" unit="cm" value="35.0">35 cm</quantity>
high, branched, flexuose to straight, thickened in old colonies, internodes with several annuli at their base, perisarc of older tubes usually conspicuously darker than those of younger tubes; hydrothecae bell-shaped, usually not very deep, thin walled, borne alternately and laterally on completely annulated pedicels at the upper part of the internodes, rim even to crenate, slightly flaring, diaphragm transverse to oblique. Colours: in preserved specimens horn-coloured to dark red-brown; perisarc of older tubes usually conspicuously darker than those of younger tubes. Gonothecae usually inverted-conical on annulated pedicels, truncated at the distal end, mature ones with a short distal neck.
</paragraph>
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<paragraph id="8BEE36C8FF6EFF219CD60B7CD377FBBC" blockId="152.[151,1436,1077,1130]" pageId="152" pageNumber="153">
<emphasis id="B925EADAFF6EFF219CD60B7CD615FB9D" bold="true" box="[151,300,1077,1099]" pageId="152" pageNumber="153">FIGURE 108.</emphasis>
<taxonomicName id="4C514D4BFF6EFF219D700B7CD6DEFB9D" box="[305,487,1077,1099]" class="Hydrozoa" family="Campanulariidae" genus="Obelia" kingdom="Animalia" order="Leptothecata" pageId="152" pageNumber="153" phylum="Cnidaria" rank="species" species="dichotoma">
<emphasis id="B925EADAFF6EFF219D700B7CD6DEFB9D" box="[305,487,1077,1099]" italics="true" pageId="152" pageNumber="153">Obelia dichotoma</emphasis>
</taxonomicName>
:
<emphasis id="B925EADAFF6EFF219DB50B7FD53FFB9D" bold="true" box="[500,518,1078,1099]" pageId="152" pageNumber="153">A</emphasis>
, general aspect of a colony;
<emphasis id="B925EADAFF6EFF219F670B7FD40EFB9D" bold="true" box="[806,823,1078,1099]" pageId="152" pageNumber="153">B</emphasis>
, detail of hydrocladial ramifications;
<emphasis id="B925EADAFF6EFF2198F50B7CD3FFFB9D" bold="true" box="[1204,1222,1077,1099]" pageId="152" pageNumber="153">C</emphasis>
, detail of hydrotheca and gonotheca;
<emphasis id="B925EADAFF6EFF219D760B1CD670FBBC" bold="true" box="[311,329,1109,1130]" pageId="152" pageNumber="153">D</emphasis>
, medusa (drawn by C.G. Di Camillo). Scale bars: B, 1.0 mm; C, D, 0.5 mm.
</paragraph>
</caption>
<paragraph id="8BEE36C8FF6EFF219C860BD8D5D2FB24" blockId="152.[151,1436,1169,2025]" pageId="152" pageNumber="153">
<emphasis id="B925EADAFF6EFF219C860BD8D65DFB7C" bold="true" box="[199,356,1169,1194]" pageId="152" pageNumber="153">
Habitat
<typeStatus id="54EA886AFF6EFF219D6B0BD8D666FB7C" box="[298,351,1169,1194]" pageId="152" pageNumber="153">type</typeStatus>
.
</emphasis>
Eurybathic species that in the Mediterranean has been found from the tidal level to about
<quantity id="4CA99B2DFF6EFF2199140BDBD2A5FB7F" box="[1365,1436,1170,1194]" metricMagnitude="2" metricUnit="m" metricValue="2.0" pageId="152" pageNumber="153" unit="m" value="200.0">200 m</quantity>
depth (García
<bibRefCitation id="EFC04B39FF6EFF219D7D0BFFD6C2FB18" author="Carrascosa" box="[316,507,1206,1230]" pageId="152" pageNumber="153" refString="Garcia-Carrascosa, A. M. (1981) Hidrozoos tecados (Hydrozoa Calyptoblastea) del litoral mediterraneo espanol: faunistica, ecologia, bionomia bentonica y biogeografia. Tesis Doctoral Universidad Valencia, 464 pp." type="book" year="1981">Carrascosa 1981</bibRefCitation>
;
<bibRefCitation id="EFC04B39FF6EFF219E480BFFD5CBFB18" author="Boero" box="[521,754,1205,1230]" pageId="152" pageNumber="153" refString="Boero, F. &amp; Fresi, E. (1986) Zonation and evolution of a Rocky bottom hydroid community. Marine Ecology, 7 (2), 123 - 150. http: // dx. doi. org / 10.1111 / j. 1439 - 0485.1986. tb 00152. x" type="journal article" year="1986">Boero &amp; Fresi 1986</bibRefCitation>
; Ramil &amp; Vervoort 1992). Hydroid stage recorded in water from normal salinity down to 12‰ (
<bibRefCitation id="EFC04B39FF6EFF219E6D0B90D5E7FB24" author="Cornelius" box="[556,734,1241,1266]" pageId="152" pageNumber="153" refString="Cornelius, P. F. S. (1995) NorthWest European Thecate Hydroids and their Medusae. Synopses of the British Fauna, New Series, pt. 1 &amp; 2, 1 - 347 &amp; 1 - 386." type="journal article" year="1995">Cornelius 1995</bibRefCitation>
).
</paragraph>
<paragraph id="8BEE36C8FF6EFF219C860BB4D3D7FAEC" blockId="152.[151,1436,1169,2025]" pageId="152" pageNumber="153">
<emphasis id="B925EADAFF6EFF219C860BB4D678FAC0" bold="true" box="[199,321,1277,1302]" pageId="152" pageNumber="153">Substrate.</emphasis>
Epibiontic on other hydroids,
<taxonomicName id="4C514D4BFF6EFF219EA00BB7D414FAC3" box="[737,813,1278,1301]" class="Bivalvia" family="Pectinidae" genus="Pecten" kingdom="Animalia" order="Pectinoida" pageId="152" pageNumber="153" phylum="Mollusca" rank="genus">
<emphasis id="B925EADAFF6EFF219EA00BB7D414FAC3" box="[737,813,1278,1301]" italics="true" pageId="152" pageNumber="153">Pecten</emphasis>
</taxonomicName>
, algae, mussels, bryozoans, ascidians, barnacles, phanerogams, Crustacea, gorgonaceans, worm-tubes, sponge, rock and on recuperated instruments.
</paragraph>
<paragraph id="8BEE36C8FF6EFF219C860A0CD5DCFA54" blockId="152.[151,1436,1169,2025]" pageId="152" pageNumber="153">
<emphasis id="B925EADAFF6EFF219C860A0CD66DFA88" bold="true" box="[199,340,1349,1374]" pageId="152" pageNumber="153">Seasonality.</emphasis>
Present all the year (
<bibRefCitation id="EFC04B39FF6EFF219E000A0FD41FFA88" author="Boero" box="[577,806,1349,1374]" pageId="152" pageNumber="153" refString="Boero, F. &amp; Fresi, E. (1986) Zonation and evolution of a Rocky bottom hydroid community. Marine Ecology, 7 (2), 123 - 150. http: // dx. doi. org / 10.1111 / j. 1439 - 0485.1986. tb 00152. x" type="journal article" year="1986">Boero &amp; Fresi 1986</bibRefCitation>
;
<bibRefCitation id="EFC04B39FF6EFF219F730A0CD4C4FA88" author="Llobet" box="[818,1021,1349,1374]" pageId="152" pageNumber="153" refString="Llobet, I., Gili, J. M. &amp; Hughes, R. G. (1991) Horizontal, vertical and seasonal distributions of epiphytic Hydrozoa on the alga Halimeda tuna in the northwestern Mediterranean Sea. Marine Biology Berlin, 110 (1), 151 - 159. http: // dx. doi. org / 10.1007 / bf 01313102" type="journal article" year="1991">
Llobet
<emphasis id="B925EADAFF6EFF219FC30A0FD482FA88" box="[898,955,1349,1374]" italics="true" pageId="152" pageNumber="153">et al.</emphasis>
1991
</bibRefCitation>
; De Vito 2006; Puce
<emphasis id="B925EADAFF6EFF2198AC0A0FD21CFA88" box="[1261,1317,1349,1374]" italics="true" pageId="152" pageNumber="153">et al.</emphasis>
2009; this study) in several localities of the Mediterranean Sea.
</paragraph>
<paragraph id="8BEE36C8FF6EFF219C860AC4D648F9A8" blockId="152.[151,1436,1169,2025]" pageId="152" pageNumber="153">
<emphasis id="B925EADAFF6EFF219C860AC4D6FCFA70" bold="true" box="[199,453,1421,1446]" pageId="152" pageNumber="153">Reproductive period.</emphasis>
January and February (
<bibRefCitation id="EFC04B39FF6EFF219E900AC4D463FA70" author="Broch" box="[721,858,1421,1446]" pageId="152" pageNumber="153" refString="Broch, H. (1933) Zur kenntnis der Adriatischen fauna Von Split. Skrifter Norske Videnskaps-Akademi i Oslo. Matematisknaturvidenskapelig klasse, 4, 1 - 115." type="journal article" year="1933">Broch 1933</bibRefCitation>
;
<bibRefCitation id="EFC04B39FF6EFF219F260AC7D374FA70" author="Boero" box="[871,1101,1421,1446]" pageId="152" pageNumber="153" refString="Boero, F. &amp; Fresi, E. (1986) Zonation and evolution of a Rocky bottom hydroid community. Marine Ecology, 7 (2), 123 - 150. http: // dx. doi. org / 10.1111 / j. 1439 - 0485.1986. tb 00152. x" type="journal article" year="1986">Boero &amp; Fresi 1986</bibRefCitation>
; Gili 1986; Puce
<emphasis id="B925EADAFF6EFF2199520AC7D275FA70" box="[1299,1356,1421,1446]" italics="true" pageId="152" pageNumber="153">et al.</emphasis>
2009), March (
<bibRefCitation id="EFC04B39FF6EFF219CAE0AFBD6ECFA1C" author="Boero" box="[239,469,1457,1482]" pageId="152" pageNumber="153" refString="Boero, F. &amp; Fresi, E. (1986) Zonation and evolution of a Rocky bottom hydroid community. Marine Ecology, 7 (2), 123 - 150. http: // dx. doi. org / 10.1111 / j. 1439 - 0485.1986. tb 00152. x" type="journal article" year="1986">Boero &amp; Fresi 1986</bibRefCitation>
; Gili 1986; Puce
<emphasis id="B925EADAFF6EFF219ED90AFAD5E9FA1C" box="[664,720,1457,1482]" italics="true" pageId="152" pageNumber="153">et al.</emphasis>
2009), April (
<bibRefCitation id="EFC04B39FF6EFF219F300AF8D32CFA1C" author="Stechow" box="[881,1045,1457,1482]" pageId="152" pageNumber="153" refString="Stechow, E. (1919) Zur Kenntnis der Hydroidenfauna des Mittelmeeres, Amerikas und anderer Gebiete, nebst Angaben uber einige Kirchenpauersche Typen von Plumulariden. Zoologische Jahrbucher, Abeilung fur Systematik, 42 (1), 1 - 172." type="journal article" year="1919">Stechow 1919</bibRefCitation>
;
<bibRefCitation id="EFC04B39FF6EFF2198600AF8D391FA1C" author="Broch" box="[1057,1192,1457,1482]" pageId="152" pageNumber="153" refString="Broch, H. (1933) Zur kenntnis der Adriatischen fauna Von Split. Skrifter Norske Videnskaps-Akademi i Oslo. Matematisknaturvidenskapelig klasse, 4, 1 - 115." type="journal article" year="1933">Broch 1933</bibRefCitation>
;
<bibRefCitation id="EFC04B39FF6EFF2198F50AFBD2AEFA1C" author="Boero" box="[1204,1431,1457,1482]" pageId="152" pageNumber="153" refString="Boero, F. &amp; Fresi, E. (1986) Zonation and evolution of a Rocky bottom hydroid community. Marine Ecology, 7 (2), 123 - 150. http: // dx. doi. org / 10.1111 / j. 1439 - 0485.1986. tb 00152. x" type="journal article" year="1986">Boero &amp; Fresi 1986</bibRefCitation>
; Gili 1986; Puce
<emphasis id="B925EADAFF6EFF219D0D0A9FD6BAFA38" box="[332,387,1493,1518]" italics="true" pageId="152" pageNumber="153">et al.</emphasis>
2009), May (
<bibRefCitation id="EFC04B39FF6EFF219E580A9FD5C2FA38" author="Boero" box="[537,763,1493,1518]" pageId="152" pageNumber="153" refString="Boero, F. &amp; Fresi, E. (1986) Zonation and evolution of a Rocky bottom hydroid community. Marine Ecology, 7 (2), 123 - 150. http: // dx. doi. org / 10.1111 / j. 1439 - 0485.1986. tb 00152. x" type="journal article" year="1986">Boero &amp; Fresi 1986</bibRefCitation>
; Puce
<emphasis id="B925EADAFF6EFF219F050A9FD442FA38" box="[836,891,1493,1518]" italics="true" pageId="152" pageNumber="153">et al.</emphasis>
2009), June (
<bibRefCitation id="EFC04B39FF6EFF2198500A9CD3A0FA38" author="Broch" box="[1041,1177,1493,1518]" pageId="152" pageNumber="153" refString="Broch, H. (1933) Zur kenntnis der Adriatischen fauna Von Split. Skrifter Norske Videnskaps-Akademi i Oslo. Matematisknaturvidenskapelig klasse, 4, 1 - 115." type="journal article" year="1933">Broch 1933</bibRefCitation>
; Puce
<emphasis id="B925EADAFF6EFF2198A00A9FD220FA38" box="[1249,1305,1493,1518]" italics="true" pageId="152" pageNumber="153">et al.</emphasis>
2009), July (
<bibRefCitation id="EFC04B39FF6EFF219CDF0AB0D611F9C4" author="Broch" box="[158,296,1529,1554]" pageId="152" pageNumber="153" refString="Broch, H. (1933) Zur kenntnis der Adriatischen fauna Von Split. Skrifter Norske Videnskaps-Akademi i Oslo. Matematisknaturvidenskapelig klasse, 4, 1 - 115." type="journal article" year="1933">Broch 1933</bibRefCitation>
;
<bibRefCitation id="EFC04B39FF6EFF219D740AB3D43FF9C4" author="Pena" box="[309,774,1530,1554]" pageId="152" pageNumber="153" refString="Pena Cantero, A. L. &amp; Garcia Carrascosa, A. M. (2002) The benthic hydroid fauna of the Chafarinas Islands (Alboran Sea, western Mediterranean). Zoologische Verhandelingen Leiden, 337, 1 - 180." type="journal article" year="2002">Peña Cantero &amp; García Carrascosa 2002</bibRefCitation>
), September (
<bibRefCitation id="EFC04B39FF6EFF219FE30AB0D315F9C4" author="Broch" box="[930,1068,1529,1554]" pageId="152" pageNumber="153" refString="Broch, H. (1933) Zur kenntnis der Adriatischen fauna Von Split. Skrifter Norske Videnskaps-Akademi i Oslo. Matematisknaturvidenskapelig klasse, 4, 1 - 115." type="journal article" year="1933">Broch 1933</bibRefCitation>
; Morri &amp; Bianchi 1999; Puce
<emphasis id="B925EADAFF6EFF2199C90AB2D78DF9E0" italics="true" pageId="152" pageNumber="153">et al.</emphasis>
2009), November (
<bibRefCitation id="EFC04B39FF6EFF219DD60954D51BF9E0" author="Broch" box="[407,546,1565,1590]" pageId="152" pageNumber="153" refString="Broch, H. (1933) Zur kenntnis der Adriatischen fauna Von Split. Skrifter Norske Videnskaps-Akademi i Oslo. Matematisknaturvidenskapelig klasse, 4, 1 - 115." type="journal article" year="1933">Broch 1933</bibRefCitation>
;
<bibRefCitation id="EFC04B39FF6EFF219E710957D423F9E0" author="Boero" box="[560,794,1565,1590]" pageId="152" pageNumber="153" refString="Boero, F. &amp; Fresi, E. (1986) Zonation and evolution of a Rocky bottom hydroid community. Marine Ecology, 7 (2), 123 - 150. http: // dx. doi. org / 10.1111 / j. 1439 - 0485.1986. tb 00152. x" type="journal article" year="1986">Boero &amp; Fresi 1986</bibRefCitation>
;
<bibRefCitation id="EFC04B39FF6EFF219F680954D4FAF9E0" author="Denitto" box="[809,963,1565,1590]" pageId="152" pageNumber="153" refString="Denitto, F. (1996) Etologia alimentare e cicli vitali di alcune specie di Hydroidomedusae: Anthomedusae / Filifera e Leptomedusae (Hydrozoa). Degree Thesis, Biology, Universita degli Studi di Lecce, 176 pp." type="book" year="1996">Denitto 1996</bibRefCitation>
), December (
<bibRefCitation id="EFC04B39FF6EFF21981C0954D3D1F9E0" author="Broch" box="[1117,1256,1565,1590]" pageId="152" pageNumber="153" refString="Broch, H. (1933) Zur kenntnis der Adriatischen fauna Von Split. Skrifter Norske Videnskaps-Akademi i Oslo. Matematisknaturvidenskapelig klasse, 4, 1 - 115." type="journal article" year="1933">Broch 1933</bibRefCitation>
;
<bibRefCitation id="EFC04B39FF6EFF2198B60957D7EAF98C" author="Boero" pageId="152" pageNumber="153" refString="Boero, F. &amp; Fresi, E. (1986) Zonation and evolution of a Rocky bottom hydroid community. Marine Ecology, 7 (2), 123 - 150. http: // dx. doi. org / 10.1111 / j. 1439 - 0485.1986. tb 00152. x" type="journal article" year="1986">Boero &amp; Fresi 1986</bibRefCitation>
; Gili 1986;
<bibRefCitation id="EFC04B39FF6EFF219D2F0908D532F98C" author="Denitto" box="[366,523,1601,1626]" pageId="152" pageNumber="153" refString="Denitto, F. (1996) Etologia alimentare e cicli vitali di alcune specie di Hydroidomedusae: Anthomedusae / Filifera e Leptomedusae (Hydrozoa). Degree Thesis, Biology, Universita degli Studi di Lecce, 176 pp." type="book" year="1996">Denitto 1996</bibRefCitation>
; Puce
<emphasis id="B925EADAFF6EFF219E25090AD59DF98C" box="[612,676,1601,1626]" italics="true" pageId="152" pageNumber="153">et al.</emphasis>
2009), and JanuaryAugust (De Vito 2006; this study) in the Mediterranean Sea.
</paragraph>
<paragraph id="8BEE36C8FF6EFF219C8609C0D35DF8D8" blockId="152.[151,1436,1169,2025]" pageId="152" pageNumber="153">
<emphasis id="B925EADAFF6EFF219C8609C0D614F974" bold="true" box="[199,301,1673,1698]" pageId="152" pageNumber="153">Medusa.</emphasis>
Umbrella circular, flat, 2.5
<quantity id="4CA99B2DFF6EFF219E2F09C0D596F977" box="[622,687,1673,1698]" metricMagnitude="-3" metricUnit="m" metricValue="6.0" pageId="152" pageNumber="153" unit="mm" value="6.0">6 mm</quantity>
wide, mesoglea very thin; without gastric peduncle; mouth with 4 simple lips; 4 radial canals; gonads spherical to ovoid, sac-like, hanging from middle to end of the radial canals; numerous short, chordal, not extensile marginal tentacles with short endodermal roots extending into bell mesoglea; 8 statocysts situated on underside of basal bulbs of some marginal tentacles.
</paragraph>
<paragraph id="8BEE36C8FF6EFF219C860850D22AF8E4" blockId="152.[151,1436,1169,2025]" box="[199,1299,1817,1846]" pageId="152" pageNumber="153">
<emphasis id="B925EADAFF6EFF219C860850D602F8E4" bold="true" box="[199,315,1817,1842]" pageId="152" pageNumber="153">Cnidome.</emphasis>
b-mastigophores 2
<typeStatus id="54EA886AFF6EFF219E590853D56AF8E4" box="[536,595,1818,1842]" pageId="152" pageNumber="153">types</typeStatus>
(polyp); isorhiza haploneme, the I D -' and I d
<typeStatus id="54EA886AFF6EFF2198200853D3A5F8E4" box="[1121,1180,1818,1842]" pageId="152" pageNumber="153">types</typeStatus>
(medusa).
</paragraph>
</subSubSection>
<subSubSection id="C34B6543FF6EFF209C860809D7D9FF02" lastPageId="153" lastPageNumber="154" pageId="152" pageNumber="153" type="distribution">
<paragraph id="8BEE36C8FF6EFF219C860809D33EF8AB" blockId="152.[151,1436,1169,2025]" pageId="152" pageNumber="153">
<emphasis id="B925EADAFF6EFF219C860809D659F88F" bold="true" box="[199,352,1856,1881]" pageId="152" pageNumber="153">Distribution.</emphasis>
Cosmopolitan (Ramil &amp; Vervoort 1992;
<bibRefCitation id="EFC04B39FF6EFF219F6A0809D3A8F88F" author="Medel" box="[811,1169,1856,1881]" pageId="152" pageNumber="153" refString="Medel, M. D. &amp; Lopez-Gonzalez, P. J. (1996) Updated catalogue of the Hydrozoans from the Iberian Peninsula and Balearic Islands with remarks on zoogeography and affinities. Scientia Marina, 60 (1), 183 - 209." type="journal article" year="1996">Medel &amp; López-González 1996</bibRefCitation>
;
<bibRefCitation id="EFC04B39FF6EFF2198DD0809D262F88F" author="Schuchert" box="[1180,1371,1856,1881]" pageId="152" pageNumber="153" refString="Schuchert, P. (2001 a) Hydroids of Greenland and Iceland (Cnidaria, Hydrozoa). Meddelelser om Gronland, Bioscience, 53, 1 - 184." type="journal article" year="2001" yearSuffix="a">Schuchert 2001a</bibRefCitation>
;
<bibRefCitation id="EFC04B39FF6EFF2199270808D51BF8AB" author="Pena" pageId="152" pageNumber="153" refString="Pena Cantero, A. L. &amp; Garcia Carrascosa, A. M. (2002) The benthic hydroid fauna of the Chafarinas Islands (Alboran Sea, western Mediterranean). Zoologische Verhandelingen Leiden, 337, 1 - 180." type="journal article" year="2002">Peña Cantero &amp; García Carrascosa 2002</bibRefCitation>
; Bouillon
<emphasis id="B925EADAFF6EFF219ED7082FD5F6F8AB" box="[662,719,1892,1917]" italics="true" pageId="152" pageNumber="153">et al.</emphasis>
2004;
<bibRefCitation id="EFC04B39FF6EFF219F5D082DD4C2F8AB" author="Gravili" box="[796,1019,1892,1917]" pageId="152" pageNumber="153" refString="Gravili, C., Boero, F. &amp; Licandro, P. (2008 a) Hydrozoa. Biologia Marina Mediterranea, 15 (Supplement), 71 - 91." type="journal article" year="2008" yearSuffix="a">
Gravili
<emphasis id="B925EADAFF6EFF219F32082FD49DF8AB" box="[883,932,1892,1917]" italics="true" pageId="152" pageNumber="153">et al</emphasis>
. 2008a
</bibRefCitation>
).
</paragraph>
<paragraph id="8BEE36C8FF6EFF209C8608C1D7D9FF02" blockId="152.[151,1436,1169,2025]" lastBlockId="153.[151,1437,151,824]" lastPageId="153" lastPageNumber="154" pageId="152" pageNumber="153">
<emphasis id="B925EADAFF6EFF219C8608C1D68AF877" bold="true" box="[199,435,1928,1953]" pageId="152" pageNumber="153">Records in Salento.</emphasis>
Common at:
<taxonomicName id="4C514D4BFF6EFF219E1208C1D59DF877" box="[595,676,1928,1953]" class="Liliopsida" family="Zosteraceae" genus="Zostera" kingdom="Plantae" order="Alismatales" pageId="152" pageNumber="186" phylum="Tracheophyta" rank="species" species="marina">Marina</taxonomicName>
di Corsano, Torre Vado, Ponte del Ciolo (
<bibRefCitation id="EFC04B39FF6EFF2198CC08C1D20BF877" author="Presicce" box="[1165,1330,1928,1953]" pageId="152" pageNumber="153" refString="Presicce, M. M. (1991) Gli idroidi (Cnidaria: Hydrozoa) del litorale salentino. Degree Thesis, Marine Biology, Universita degli Studi di Lecce, 143 pp." type="book" year="1991">Presicce 1991</bibRefCitation>
); Gulf of Taranto, Brindisi (
<bibRefCitation id="EFC04B39FF6EFF219D2408E5D6C7F813" author="Denitto" box="[357,510,1964,1989]" pageId="152" pageNumber="153" refString="Denitto, F. (1996) Etologia alimentare e cicli vitali di alcune specie di Hydroidomedusae: Anthomedusae / Filifera e Leptomedusae (Hydrozoa). Degree Thesis, Biology, Universita degli Studi di Lecce, 176 pp." type="book" year="1996">Denitto 1996</bibRefCitation>
;
<bibRefCitation id="EFC04B39FF6EFF219E4A08E5D5C0F813" author="Miglietta" box="[523,761,1964,1989]" pageId="152" pageNumber="153" refString="Miglietta, M. P., Della Tommasa, L., Denitto, F., Gravili, C., Pagliara, P., Bouillon, J. &amp; Boero, F. (2000) Approaches to the ethology of hydroids and medusae (Cnidaria, Hydrozoa). In: Mills, C. E., Boero, F., Migotto, A. &amp; Gili, J. M. (Eds.), Trends in Hydrozoan Biology - IV. Scientia Marina, 64 (Supplement 1), pp. 63 - 71. http: // dx. doi. org / 10.3989 / scimar. 2000.64 s 163" type="journal article" year="2000">
Miglietta
<emphasis id="B925EADAFF6EFF219E3B08E7D58DF813" box="[634,692,1964,1989]" italics="true" pageId="152" pageNumber="153">et al.</emphasis>
2000
</bibRefCitation>
); Otranto (
<bibRefCitation id="EFC04B39FF6EFF219F3308E5D335F813" author="Denitto" box="[882,1036,1964,1989]" pageId="152" pageNumber="153" refString="Denitto, F. (1996) Etologia alimentare e cicli vitali di alcune specie di Hydroidomedusae: Anthomedusae / Filifera e Leptomedusae (Hydrozoa). Degree Thesis, Biology, Universita degli Studi di Lecce, 176 pp." type="book" year="1996">Denitto 1996</bibRefCitation>
;
<bibRefCitation id="EFC04B39FF6EFF21985808E5D23DF813" author="Miglietta" box="[1049,1284,1964,1989]" pageId="152" pageNumber="153" refString="Miglietta, M. P., Della Tommasa, L., Denitto, F., Gravili, C., Pagliara, P., Bouillon, J. &amp; Boero, F. (2000) Approaches to the ethology of hydroids and medusae (Cnidaria, Hydrozoa). In: Mills, C. E., Boero, F., Migotto, A. &amp; Gili, J. M. (Eds.), Trends in Hydrozoan Biology - IV. Scientia Marina, 64 (Supplement 1), pp. 63 - 71. http: // dx. doi. org / 10.3989 / scimar. 2000.64 s 163" type="journal article" year="2000">
Miglietta
<emphasis id="B925EADAFF6EFF2198C608E7D383F813" box="[1159,1210,1964,1989]" italics="true" pageId="152" pageNumber="153">et al</emphasis>
. 2000
</bibRefCitation>
;
<bibRefCitation id="EFC04B39FF6EFF21995008E5D7CEF83F" author="Fraschetti" pageId="152" pageNumber="153" refString="Fraschetti, S., Giangrande, A., Terlizzi, A., Miglietta, M. P., Della Tommasa, L. &amp; Boero, F. (2002) Spatio-temporal variation of hydroids and polychaetes associated with Cystoseira amentacea (Fucales: Phaeophyceae). Marine Biology, 140 (5), 949 - 957. http: // dx. doi. org / 10.1007 / s 00227 - 001 - 0770 - 9" type="journal article" year="2002">
Fraschetti
<emphasis id="B925EADAFF6EFF2199C908E7D794F83F" italics="true" pageId="152" pageNumber="153">et al</emphasis>
. 2002
</bibRefCitation>
; De Vito 2006; Gravili 2006;
<bibRefCitation id="EFC04B39FF6EFF219E0E0899D40BF83F" author="Gravili" box="[591,818,2000,2025]" pageId="152" pageNumber="153" refString="Gravili, C., Boero, F. &amp; Licandro, P. (2008 a) Hydrozoa. Biologia Marina Mediterranea, 15 (Supplement), 71 - 91." type="journal article" year="2008" yearSuffix="a">
Gravili
<emphasis id="B925EADAFF6EFF219EE60898D5E3F83F" box="[679,730,2000,2025]" italics="true" pageId="152" pageNumber="153">et al</emphasis>
. 2008a
</bibRefCitation>
; this study); La Strea, Porto Cesareo (
<bibRefCitation id="EFC04B39FF6EFF2098A50899D7EDFF66" author="Faucci" lastPageId="153" lastPageNumber="154" pageId="152" pageNumber="153" refString="Faucci, A. &amp; Boero, F. (2000) Structure of an epiphytic hydroid community on Cystoseira at two sites of different wave exposure. In: Mills, C. E., Boero, F., Migotto, A. &amp; Gili, J. M. (Eds.), Trends in Hydrozoan Biology - IV. Scientia Marina, 64 (Supplement 1), pp. 255 - 264. http: // dx. doi. org / 10.3989 / scimar. 2000.64 s 1255" type="journal article" year="2000">Faucci &amp; Boero 2000</bibRefCitation>
); Costa Merlata (
<bibRefCitation id="EFC04B39FF6FFF209DD80FDED5A8FF66" author="Fraschetti" box="[409,657,151,176]" pageId="153" pageNumber="154" refString="Fraschetti, S., Giangrande, A., Terlizzi, A., Miglietta, M. P., Della Tommasa, L. &amp; Boero, F. (2002) Spatio-temporal variation of hydroids and polychaetes associated with Cystoseira amentacea (Fucales: Phaeophyceae). Marine Biology, 140 (5), 949 - 957. http: // dx. doi. org / 10.1007 / s 00227 - 001 - 0770 - 9" type="journal article" year="2002">
Fraschetti
<emphasis id="B925EADAFF6FFF209E520FD0D57FFF66" box="[531,582,151,176]" italics="true" pageId="153" pageNumber="154">et al</emphasis>
. 2002
</bibRefCitation>
;
<bibRefCitation id="EFC04B39FF6FFF209EDE0FDED46BFF66" author="Andreano" box="[671,850,151,176]" pageId="153" pageNumber="154" refString="Andreano, F. (2007) Identificazione degli idroidi (Cnidaria: Hydrozoa) nella fascia batimetrica dei 0 - 5 m. Degree Thesis, Marine Biology, University of Salento, 152 pp." type="book" year="2007">Andreano 2007</bibRefCitation>
); Other Apulian records: Gargano (
<bibRefCitation id="EFC04B39FF6FFF2098A90FDED7EDFF02" author="Fraschetti" pageId="153" pageNumber="154" refString="Fraschetti, S., Giangrande, A., Terlizzi, A., Miglietta, M. P., Della Tommasa, L. &amp; Boero, F. (2002) Spatio-temporal variation of hydroids and polychaetes associated with Cystoseira amentacea (Fucales: Phaeophyceae). Marine Biology, 140 (5), 949 - 957. http: // dx. doi. org / 10.1007 / s 00227 - 001 - 0770 - 9" type="journal article" year="2002">
Fraschetti
<emphasis id="B925EADAFF6FFF2099230FD0D2ADFF66" box="[1378,1428,151,176]" italics="true" pageId="153" pageNumber="154">et al</emphasis>
. 2002
</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C34B6543FF6FFF209C860F96D590FE7B" pageId="153" pageNumber="154" type="discussion">
<paragraph id="8BEE36C8FF6FFF209C860F96D590FE7B" blockId="153.[151,1437,151,824]" pageId="153" pageNumber="154">
<emphasis id="B925EADAFF6FFF209C860F96D602FF2E" bold="true" box="[199,315,223,248]" pageId="153" pageNumber="154">Remarks.</emphasis>
The whole cycle was examined in the present study.
<taxonomicName id="4C514D4BFF6FFF209FBB0FA9D3A4FF2E" box="[1018,1181,223,248]" class="Hydrozoa" family="Campanulariidae" genus="Obelia" kingdom="Animalia" order="Leptothecata" pageId="153" pageNumber="154" phylum="Cnidaria" rank="species" species="dichotoma">
<emphasis id="B925EADAFF6FFF209FBB0FA9D3A4FF2E" box="[1018,1181,223,248]" italics="true" pageId="153" pageNumber="154">O. dichotoma</emphasis>
</taxonomicName>
is among the most phenotypically varied of all hydroids; however one of the nematocyst
<typeStatus id="54EA886AFF6FFF209FF60E4CD4CBFECB" box="[951,1010,261,285]" pageId="153" pageNumber="154">types</typeStatus>
is diagnostic of the species, which is especially useful in distinguishing it from the somewhat similar
<taxonomicName id="4C514D4BFF6FFF209F280E61D33CFE96" box="[873,1029,295,320]" class="Hydrozoa" family="Campanulariidae" genus="Obelia" kingdom="Animalia" order="Leptothecata" pageId="153" pageNumber="154" phylum="Cnidaria" rank="species" species="longissima">
<emphasis id="B925EADAFF6FFF209F280E61D33CFE96" box="[873,1029,295,320]" italics="true" pageId="153" pageNumber="154">O. longissima</emphasis>
</taxonomicName>
(for details see
<bibRefCitation id="EFC04B39FF6FFF2098F90E6ED26BFE96" author="Ostman" box="[1208,1362,295,320]" pageId="153" pageNumber="154" refString="Ostman, C. (1982) Nematocysts and taxonomy in Laomedea, Gonothyraea and Obelia (Hydrozoa, Campanulariidae). Zoologica Scripta, 11 (4), 227 - 241. http: // dx. doi. org / 10.1111 / j. 1463 - 6409.1982. tb 00536. x" type="journal article" year="1982">Östman 1982</bibRefCitation>
, 1987, 1999;
<bibRefCitation id="EFC04B39FF6FFF209C9E0E05D6A9FEB3" author="Cornelius" box="[223,400,332,357]" pageId="153" pageNumber="154" refString="Cornelius, P. F. S. (1995) NorthWest European Thecate Hydroids and their Medusae. Synopses of the British Fauna, New Series, pt. 1 &amp; 2, 1 - 347 &amp; 1 - 386." type="journal article" year="1995">Cornelius 1995</bibRefCitation>
). The medusae of
<taxonomicName id="4C514D4BFF6FFF209E230E05D596FEB3" box="[610,687,332,357]" class="Hydrozoa" family="Campanulariidae" genus="Obelia" kingdom="Animalia" order="Leptothecata" pageId="153" pageNumber="154" phylum="Cnidaria" rank="genus">
<emphasis id="B925EADAFF6FFF209E230E05D596FEB3" box="[610,687,332,357]" italics="true" pageId="153" pageNumber="154">Obelia</emphasis>
</taxonomicName>
are not distinguishable at the species level, whereas they are very distinct from all other hydromedusae (Boero
<emphasis id="B925EADAFF6FFF209EE70E38D5DBFE5E" box="[678,738,367,392]" italics="true" pageId="153" pageNumber="154">et al.</emphasis>
1996). Boero
<emphasis id="B925EADAFF6FFF209FCF0E38D4E8FE5E" box="[910,977,367,392]" italics="true" pageId="153" pageNumber="154">et. al.</emphasis>
(2007) showed that the medusae of
<taxonomicName id="4C514D4BFF6FFF2099C00E39D634FE7B" class="Hydrozoa" family="Campanulariidae" genus="Obelia" kingdom="Animalia" order="Leptothecata" pageId="153" pageNumber="154" phylum="Cnidaria" rank="species" species="dichotoma">
<emphasis id="B925EADAFF6FFF2099C00E39D634FE7B" italics="true" pageId="153" pageNumber="154">O. dichotoma</emphasis>
</taxonomicName>
are active filter feeders of microbes.
</paragraph>
</subSubSection>
<subSubSection id="C34B6543FF6FFF209C860EFED253FCEE" pageId="153" pageNumber="154" type="reference_group">
<paragraph id="8BEE36C8FF6FFF209C860EFED253FCEE" blockId="153.[151,1437,151,824]" pageId="153" pageNumber="154">
<emphasis id="B925EADAFF6FFF209C860EFED669FE06" bold="true" box="[199,336,439,464]" pageId="153" pageNumber="154">References.</emphasis>
<taxonomicName id="4C514D4BFF6FFF209D190EFED534FE06" ID-CoL="8489M" box="[344,525,439,464]" class="Hydrozoa" family="Sertulariidae" genus="Disertasia" kingdom="Animalia" order="Leptothecata" pageId="153" pageNumber="129" phylum="Cnidaria" rank="species" species="cavolini">Cavolini (1785)</taxonomicName>
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