treatments-xml/data/A9/DA/A8/A9DAA81ADB609FA9B4D026EB1D4C9F3E.xml

<document ID-DOI="http://dx.doi.org/10.3897/zookeys.810.26910" ID-GBIF-Dataset="e441d4c3-7048-42e1-a7ee-32f5c4659440" ID-PMC="PMC6308225" ID-Pensoft-Pub="1313-2970-810-1" ID-PubMed="30613171" ID-ZBK="CC6F3E3EA8C444DD8CA95A14DC7FAAFD" ModsDocAuthor="" ModsDocDate="2018" ModsDocID="1313-2970-810-1" ModsDocOrigin="ZooKeys 810" ModsDocTitle="Prionospio from the coast of the Iberian Peninsula, with the description of two new species (Annelida, Spionidae)" checkinTime="1545315424229" checkinUser="pensoft" docAuthor="elgado-Blas, Victor Hugo, iaz-Diaz, Oscar &amp; ieitez, Jose M." docDate="2018" docId="A9DAA81ADB609FA9B4D026EB1D4C9F3E" docLanguage="en" docName="ZooKeys 810: 1-18" docOrigin="ZooKeys 810" docSource="http://dx.doi.org/10.3897/zookeys.810.26910" docTitle="Prionospio parapari elgado-Blas, iaz-Diaz &amp; ieitez, 2018, sp. n." docType="treatment" docUuid="EFF7C0D4-5E43-4E9D-9BF6-CB12DB8226BE" docUuidSource="ZooBank" docVersion="5" lastPageNumber="11" masterDocId="FFF5FFBA1F1EEE2BFFB1FF88FFEF6F6E" masterDocTitle="Prionospio from the coast of the Iberian Peninsula, with the description of two new species (Annelida, Spionidae)" masterLastPageNumber="18" masterPageNumber="1" pageNumber="9" updateTime="1668166637376" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Prionospio from the coast of the Iberian Peninsula, with the description of two new species (Annelida, Spionidae)</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>elgado-Blas, Victor Hugo</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>iaz-Diaz, Oscar</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>ieitez, Jose M.</mods:namePart>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>ZooKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2018</mods:date>
<mods:detail type="volume">
<mods:number>810</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>1</mods:start>
<mods:end>18</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.3897/zookeys.810.26910</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.810.26910</mods:identifier>
<mods:identifier type="Pensoft-Pub">1313-2970-810-1</mods:identifier>
<mods:identifier type="ZBK">CC6F3E3EA8C444DD8CA95A14DC7FAAFD</mods:identifier>
<mods:identifier type="ZooBank">CC6F3E3EA8C444DD8CA95A14DC7FAAFD</mods:identifier>
</mods:mods>
<treatment ID-GBIF-Taxon="154127931" LSID="urn:lsid:zoobank.org:act:EFF7C0D4-5E43-4E9D-9BF6-CB12DB8226BE" httpUri="http://treatment.plazi.org/id/A9DAA81ADB609FA9B4D026EB1D4C9F3E" lastPageId="10" lastPageNumber="11" pageId="8" pageNumber="9">
<subSubSection pageId="8" pageNumber="9" type="nomenclature">
<paragraph pageId="8" pageNumber="9">
<taxonomicName LSID="http://zoobank.org/EFF7C0D4-5E43-4E9D-9BF6-CB12DB8226BE" class="Polychaeta" family="Spionidae" genus="Prionospio" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Prionospio parapari" order="Spionida" pageId="8" pageNumber="9" phylum="Annelida" rank="species" species="parapari">
<pageBreakToken pageId="8" pageNumber="9" start="start">Prionospio</pageBreakToken>
parapari
</taxonomicName>
<taxonomicNameLabel pageId="8" pageNumber="9">sp. n.</taxonomicNameLabel>
Figure 4 
<normalizedToken originalValue="A–Z">A-Z</normalizedToken>
</paragraph>
</subSubSection>
<subSubSection pageId="8" pageNumber="9" type="materials_examined">
<paragraph pageId="8" pageNumber="9">Material examined.</paragraph>
<paragraph pageId="8" pageNumber="9">
Atlantic Ocean. Holotype (MNCNM 16.01/18433), Mouth of Piedras River, Huelva: St. D24, 
<geoCoordinate direction="north" orientation="latitude" precision="15" value="37.21472">37°12'53&quot;N</geoCoordinate>
, 
<geoCoordinate direction="west" orientation="longitude" precision="15" value="-7.118889">7°7'8&quot;W</geoCoordinate>
, coll. L Lopez-Serrano, March 1988. 8 Paratypes (anterior fragments) (MNCNM 16.01/18434), St. D22, 
<geoCoordinate direction="north" orientation="latitude" precision="15" value="37.211666">37°12'42&quot;N</geoCoordinate>
, 
<geoCoordinate direction="west" orientation="longitude" precision="15" value="-7.152222">7°9'8&quot;W</geoCoordinate>
, coll. L Lopez-Serrano, November 1987; 6 paratypes (MNCNM 16.01/18435), St. D24, 
<geoCoordinate direction="north" orientation="latitude" precision="15" value="37.21472">37°12'53&quot;N</geoCoordinate>
, 
<geoCoordinate direction="west" orientation="longitude" precision="15" value="-7.118889">7°7'8&quot;W</geoCoordinate>
, coll. L Lopez-Serrano, March 1988; 2 paratypes (MNCNM 16.01/18436), St. D25, 
<geoCoordinate direction="north" orientation="latitude" precision="15" value="37.21472">37°12'53&quot;N</geoCoordinate>
, 
<geoCoordinate direction="west" orientation="longitude" precision="15" value="-7.1325">7°7'57&quot;W</geoCoordinate>
, coll. L 
<normalizedToken originalValue="López-Serrano">Lopez-Serrano</normalizedToken>
, March 1988; 2 paratypes and anterior fragments (MNCNM 16.01/18437), St. D29, 
<geoCoordinate direction="north" orientation="latitude" precision="15" value="37.113888">37°6'50&quot;N</geoCoordinate>
, 
<geoCoordinate direction="west" orientation="longitude" precision="15" value="-7.0666666">7°4'0&quot;W</geoCoordinate>
, coll. L Lopez-Serrano, May 1988; 1 paratype and 4 anterior fragments (MNCNM 16.01/18438), St. D38, 
<geoCoordinate direction="north" orientation="latitude" precision="15" value="37.2125">37°12'45&quot;N</geoCoordinate>
, 
<geoCoordinate direction="west" orientation="longitude" precision="15" value="-7.099167">7°5'57&quot;W</geoCoordinate>
, coll. L Lopez-Serrano, November 1988. 
<normalizedToken originalValue="Coruña">Coruna</normalizedToken>
: 1 paratype (MNCNM 16.01/12588), Ria de Ferrol, Batel Bay, 1 February 2010, coll. J Parapar; 1 paratype (MNCNM 16.01/12569), coll. J Parapar; 64 paratypes (MNCNM 16.01/125701); 1 paratype (MNCNM 16.01/12572), 
<geoCoordinate direction="north" orientation="latitude" precision="15" value="43.485832">43°29'9&quot;N</geoCoordinate>
, 
<geoCoordinate direction="west" orientation="longitude" precision="15" value="-8.254167">08°15'15&quot;W</geoCoordinate>
; 1 paratype (MNCNM 16.01/12573), 
<geoCoordinate direction="north" orientation="latitude" precision="15" value="43.491943">43°29'31&quot;N</geoCoordinate>
, 
<geoCoordinate direction="west" orientation="longitude" precision="15" value="-8.178889">8°10'44&quot;W</geoCoordinate>
; 6 paratypes (MNCNM 16.01/12574), 
<geoCoordinate direction="north" orientation="latitude" precision="15" value="43.460556">43°27'38&quot;N</geoCoordinate>
, 
<geoCoordinate direction="west" orientation="longitude" precision="15" value="-8.203889">08°12'14&quot;W</geoCoordinate>
; 5 paratypes (MNCNM 16.01/12577), 
<geoCoordinate direction="north" orientation="latitude" precision="15" value="43.480835">43°28'51&quot;N</geoCoordinate>
, 
<geoCoordinate direction="west" orientation="longitude" precision="15" value="-8.186945">8°11'13&quot;W</geoCoordinate>
; 4 paratypes (MNCNM 16.01/12578); 2 paratypes (MNCNM 16.01/12579); 1 paratype (MNCNM 16.01/12580), 
<geoCoordinate direction="north" orientation="latitude" precision="15" value="43.48528">43°29'7&quot;N</geoCoordinate>
, 
<geoCoordinate direction="west" orientation="longitude" precision="15" value="-8.171945">8°10'19&quot;W</geoCoordinate>
; 1 paratype (MNCNM 16.01/12582), 
<geoCoordinate direction="north" orientation="latitude" precision="15" value="43.479446">43°28'46&quot;N</geoCoordinate>
, 
<geoCoordinate direction="west" orientation="longitude" precision="15" value="-8.195833">8°11'45&quot;W</geoCoordinate>
; 1 paratype (MNCNM 16.01/12583), 
<geoCoordinate direction="north" orientation="latitude" precision="15" value="43.475277">43°28'31&quot;N</geoCoordinate>
, 
<geoCoordinate direction="west" orientation="longitude" precision="15" value="-8.203889">8°12'14&quot;W</geoCoordinate>
; 1 paratype (MNCNM 16.01/12589), 
<geoCoordinate direction="north" orientation="latitude" precision="15" value="43.467224">43°28'2&quot;N</geoCoordinate>
, 
<geoCoordinate direction="west" orientation="longitude" precision="15" value="-8.276944">8°16'37&quot;W</geoCoordinate>
; 6 paratypes (MNCNM 16.01/12575), 
<geoCoordinate direction="north" orientation="latitude" precision="15" value="43.480835">43°28'51&quot;N</geoCoordinate>
, 
<geoCoordinate direction="west" orientation="longitude" precision="15" value="-8.254167">8°15'15&quot;W</geoCoordinate>
; 1 paratype (MNCNM 16.01/15810); 1 paratype (MNCNM 16.01/15802); 1 paratype (MNCNM 16.01/15800); 1 paratype (MNCNM 16.01/15811), Ria de Ferrol, Laxe Bay, coll. J Parapar; Ria de Ferrol, Redonda Point, coll. J Parapar.
</paragraph>
</subSubSection>
<subSubSection lastPageId="9" lastPageNumber="10" pageId="8" pageNumber="9" type="description">
<paragraph pageId="8" pageNumber="9">Description.</paragraph>
<paragraph pageId="8" pageNumber="9">Holotype complete, 18.0 mm long with 62 chaetigers, 0.4 mm wide. Complete paratypes, 17.0-21.0 mm long with 47-68 chaetigers, 0.2-0.8 mm wide. Incomplete paratypes, 4.0-12.5 mm long with 14-61 chaetigers, 0.2-0.5 mm wide. Color in alcohol pale white. Prostomium bottle-shaped, truncated and narrow anteriorly, widening in mid-region (Fig. 4A), posteriorly tapered, with long, blunt caruncle extending to anterior edge of chaetiger II (Fig. 4A); caruncle with large V-shaped nuchal organs on either side (Fig. 4A, B). Two pairs of brown-black subdermal eyes (holotype brown), arranged in a trapezoid; anterior pair small, posterior pair very large, both pairs crescent-shaped (Fig. 4A, B) (one specimen lacks eyes). Palps lost. Peristomium moderate in size, collar-like, surrounding prostomium, fused dorsally with large, rounded notopodial lamellae on chaetiger I (Fig. 4A, C). Neuropodial postchaetal lamellae on chaetiger I large, rounded (Fig. 4C), less than half the size of notopodial lamellae.</paragraph>
<caption pageId="8" pageNumber="9">
<paragraph pageId="8" pageNumber="9">
Figure 4. 
<taxonomicName class="Polychaeta" family="Spionidae" genus="Prionospio" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Prionospio parapari" order="Spionida" pageId="8" pageNumber="9" phylum="Annelida" rank="species" species="parapari">Prionospio parapari</taxonomicName>
sp. n. (Holotype MNCNM 16.01/18433: A, C, L Paratype MNCNM 16.01/18434: B): A Anterior end, dorso-lateral view B anterior end, dorso-lateral view, showing dorsal crest and crest C parapodium of first chaetiger 
<normalizedToken originalValue="D–H">D-H</normalizedToken>
parapodium of chaetigers 
<normalizedToken originalValue="II–VI">II-VI</normalizedToken>
, frontal view (D and G with branchiae removed) I chaetiger from middle-posterior region J chaetiger from posterior region K heavily granulated, unilimbate notochaeta from anterior row of anterior chaetigers L heavily granulated, unilimbate notochaeta from posterior row of anterior chaetigers M unilimbate notochaeta from anterior row of middle chaetigers N unilimbate notochaeta from posterior row of middle chaetigers O smooth, alimbate chaeta on posterior notopodia P slightly granulated, unilimbate neurochaeta from posterior row of anterior chaetiger Q, R heavily granulated, unilimbate chaeta from chaetigers 
<normalizedToken originalValue="II–IX">II-IX</normalizedToken>
S, T smooth, unilimbate neurochaetae from anterior and posterior rows, respectively U sabre chaeta V, V' neuropodial hooded hooks W alternating alimbate capillaries X pygidium, ventral view. Abbreviations: Nuchal organ (No), Dorsal crest (Dc). Scale bars: 0.2 mm (A); 0.5 mm (B, X); 0.4 mm (
<normalizedToken originalValue="G–J">G-J</normalizedToken>
); 0.03 mm (
<normalizedToken originalValue="K–W">K-W</normalizedToken>
).
</paragraph>
</caption>
<paragraph lastPageId="9" lastPageNumber="10" pageId="8" pageNumber="9">
Four pairs of branchiae present on chaetigers 
<normalizedToken originalValue="II–V">II-V</normalizedToken>
(Fig. 4B, C); first pair longer than fourth pair, up to 1 time and a half longer than the fourth pair. Pairs 1 and 4 with long, slender, dense digitiform pinnules arranged along posterior face of the stems, pinnules thick, long, blunt in middle region of branchiae (Fig. 3B); branchiae with very long, naked, smooth, distal tips (Fig. 4B). Pairs 2 and 3 apinnate, cirriform, long, 
<pageBreakToken pageId="9" pageNumber="10" start="start">densely</pageBreakToken>
ciliated laterally, with pointed tips (Fig. 4E, F); subequal in length, up to 3 times shorter than pinnate pairs, but longer than notopodial lamellae (Fig. 4B, E, F).
</paragraph>
<paragraph pageId="9" pageNumber="10">
Notopodial postchaetal lamellae triangular and slender on chaetigers 
<normalizedToken originalValue="II–VI">II-VI</normalizedToken>
(Fig. 4 
<normalizedToken originalValue="D–H">D-H</normalizedToken>
); largest on chaetigers 
<normalizedToken originalValue="III–IV">III-IV</normalizedToken>
, with short triangular tips (Fig. 4E, F); becoming wider on chaetigers 
<normalizedToken originalValue="V–VI">V-VI</normalizedToken>
(Fig. 4G, H) and thereafter progressively decreasing in size; small, rounded on middle and posterior chaetigers (Fig. 4I, J). Notopodial lamellae united across dorsum, forming a high dorsal crest on chaetiger VII and low dorsal crests on chaetigers 
<normalizedToken originalValue="VIII–IX">VIII-IX</normalizedToken>
(Fig. 4A); some specimens without dorsal crests on chaetiger IX, subsequent chaetigers lacking crests. Ventral and dorsal edges of notopodial and neuropodial lamellae touch only on chaetiger III (Fig. 4E). Notopodial prechaetal lamellae moderate and oval in branchial region (Fig. 4 
<normalizedToken originalValue="E–G">E-G</normalizedToken>
), not basally fused with notopodial postchaetal lamellae, inconspicuous thereafter (Fig. 4 
<normalizedToken originalValue="H–J">H-J</normalizedToken>
).
</paragraph>
<paragraph pageId="9" pageNumber="10">
Anterior neuropodial postchaetal lamellae rounded (Fig. 4C, 
<normalizedToken originalValue="F–H">F-H</normalizedToken>
) throughout, except on chaetigers 
<normalizedToken originalValue="II–III">II-III</normalizedToken>
; lamella on chaetiger II triangular, large, with ventral edge enlarged, pointed (Fig. 4D); lamella on chaetiger III oval with dorsal edge enlarged (Fig. 4E); second and third pairs larger than other neuropodial lamellae; subsequent neuropodial lamellae small and rounded on middle chaetigers (Fig. 4I), and rounded lobes on posterior chaetigers (Fig. 4J). Neuropodial prechaetal lamellae low in anterior region (Fig. 4 
<normalizedToken originalValue="C–H">C-H</normalizedToken>
), rudimentary throughout. Interparapodial pouches lacking. All anterior and middle notopodial chaetae arranged in two rows. Notochaetae on chaetigers 
<normalizedToken originalValue="I–IX">I-IX</normalizedToken>
heavily granulated, unilimbate (Fig. 4K, L); posterior row longer, more heavily granulated (Fig. 4L) than anterior row (Fig. K); both rows of chaetae on middle notopodia thin, smooth, unilimbate (Fig. 4M, N); anterior row shorter (up to half) (Fig. 4M) than posterior row (Fig. 4N); posterior notopodia with smooth, alimbate chaetae (Fig. 4O) arranged in one row. All neuropodial capillaries arranged in two rows; capillaries on chaetiger I slightly granulated, unilimbate (Fig. 4P); chaetigers 
<normalizedToken originalValue="II–IX">II-IX</normalizedToken>
with heavily granulated, unilimbate neurochaetae (Fig. 4Q, R); posterior row more heavily granulated (Fig. 4R), with limbation wider than for notochaetae. Neurochaetae smooth, unilimbate on subsequent chaetigers, those on anterior row up to three times shorter and wider (Fig. 4S) than those on posterior row; limbation of posterior row wider than that of the anterior one (Fig. 4T); chaetae on posterior neuropodia arranged in one row. Neuropodial sabre chaetae from chaetigers 
<normalizedToken originalValue="X–XII">X-XII</normalizedToken>
(holotype X), up to two per fascicle, each chaeta stout, curved, heavily granulated, bilimbate (Fig. 4U). Neuropodial hooded hooks (Fig. 4V, V') from chaetigers 
<normalizedToken originalValue="XI–XV">XI-XV</normalizedToken>
(holotype XIII), up to eight per fascicle, alternating with long, thin, alimbate capillaries (Fig. 4W). Notopodial hooded hooks on chaetigers 
<normalizedToken originalValue="XXIX–XXXVIII">XXIX-XXXVIII</normalizedToken>
(holotype XXXIII), up to six per fascicle, alternating with up to two thin, alimbate capillaries, hooks on posterior chaetigers longer than those on middle chaetigers; all hooks with four pairs of small teeth above main tooth, and large secondary hoods (Fig. 4V, V').
</paragraph>
<paragraph pageId="9" pageNumber="10">Pygidium with one long median cirrus and two short, lateral lobes (Fig. 4X).</paragraph>
</subSubSection>
<subSubSection lastPageId="10" lastPageNumber="11" pageId="9" pageNumber="10" type="remarks">
<paragraph pageId="9" pageNumber="10">Remarks.</paragraph>
<paragraph lastPageId="10" lastPageNumber="11" pageId="9" pageNumber="10">
<taxonomicName class="Polychaeta" family="Spionidae" genus="Prionospio" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Prionospio parapari" order="Spionida" pageId="9" pageNumber="10" phylum="Annelida" rank="species" species="parapari">Prionospio parapari</taxonomicName>
sp. n. is very similar to 
<taxonomicName lsidName="P. fallax" pageId="9" pageNumber="10" rank="species" species="fallax">P. fallax</taxonomicName>
in having a prostomium that is truncated on the anterior margin, a neuropodial postchaetal lamellae on chaetiger II being the same shape, and a high dorsal crest on chaetiger 7. However, 
<taxonomicName lsidName="P. parapari" pageId="9" pageNumber="10" rank="species" species="parapari">P. parapari</taxonomicName>
sp. n. can be distinguished from 
<taxonomicName lsidName="P. fallax" pageId="9" pageNumber="10" rank="species" species="fallax">P. fallax</taxonomicName>
as redescribed by 
<bibRefCitation author="Sigvaldadottir, E" journalOrPublisher="Sarsia" pageId="13" pageNumber="14" pagination="203 - 219" title="Prionospiosteenstrupi, P. fallax and P. dubia (Polychaeta, Spionidae): reevaluation of identity and status." url="https://doi.org/10.1080/00364827.1993.10413535" volume="78" year="1993">
<normalizedToken originalValue="Sigvaldadóttir">Sigvaldadottir</normalizedToken>
and Mackie (1993)
</bibRefCitation>
<pageBreakToken pageId="10" pageNumber="11" start="start">,</pageBreakToken>
by the former having rounded (rather than rectangular) postchaetal neuropodial lamellae on chaetiger I, the first pair of branchiae longer than fourth (rather than of equal size), and with dense digitiform (rather than sparse lateral) pinnules arranged along the posterior face of the stems on branchiae 1 and 4, and cirriform (rather than subtriangular) second and third branchial pairs. In addition, the low dorsal crests in 
<taxonomicName lsidName="P. parapari" pageId="10" pageNumber="11" rank="species" species="parapari">P. parapari</taxonomicName>
sp. n. are present on chaetigers 
<normalizedToken originalValue="VIII–IX">VIII-IX</normalizedToken>
while in 
<taxonomicName lsidName="P. fallax" pageId="10" pageNumber="11" rank="species" species="fallax">P. fallax</taxonomicName>
they are absent; the neuropodium on chaetiger III in 
<taxonomicName lsidName="P. parapari" pageId="10" pageNumber="11" rank="species" species="parapari">P. parapari</taxonomicName>
sp. n. is oval with an enlarged dorsal edge whilst in 
<taxonomicName lsidName="P. fallax" pageId="10" pageNumber="11" rank="species" species="fallax">P. fallax</taxonomicName>
it is subtriangular and dorsally pointed; and the sabre chaetae in 
<taxonomicName lsidName="P. parapari" pageId="10" pageNumber="11" rank="species" species="parapari">P. parapari</taxonomicName>
sp. n. are heavily granulated and bilimbate whereas in 
<taxonomicName lsidName="P. fallax" pageId="10" pageNumber="11" rank="species" species="fallax">P. fallax</taxonomicName>
they are distally granulated and alimbate. The pygidium lacks pigmentation in 
<taxonomicName lsidName="P. parapari" pageId="10" pageNumber="11" rank="species" species="parapari">P. parapari</taxonomicName>
.
</paragraph>
<paragraph pageId="10" pageNumber="11">
<taxonomicName class="Polychaeta" family="Spionidae" genus="Prionospio" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Prionospio parapari" order="Spionida" pageId="10" pageNumber="11" phylum="Annelida" rank="species" species="parapari">Prionospio parapari</taxonomicName>
sp. n. is also similar to 
<taxonomicName lsidName="P. komaeti" pageId="10" pageNumber="11" rank="species" species="komaeti">P. komaeti</taxonomicName>
Hylleberg &amp; Nateewathana, 1991, 
<taxonomicName lsidName="P. depauperata" pageId="10" pageNumber="11" rank="species" species="depauperata">P. depauperata</taxonomicName>
Imajima, 1990, and 
<taxonomicName lsidName="P. oligopinnulata" pageId="10" pageNumber="11" rank="species" species="oligopinnulata">P. oligopinnulata</taxonomicName>
Delgado-Blas, 2015, in that all three species have a prostomium that is truncated on the anterior margin, the same shaped neuropodial postchaetal lamellae on chaetiger II, and a high membranous dorsal crest on chaetiger VII that decreases in height on chaetigers 
<normalizedToken originalValue="VIII–IX">VIII-IX</normalizedToken>
. However, 
<taxonomicName lsidName="P. parapari" pageId="10" pageNumber="11" rank="species" species="parapari">P. parapari</taxonomicName>
sp. n. differs from the first two species in that it has rounded (rather than square or lanceolate) notopodial and neuropodial postchaetal lamellae on chaetiger I, and an oval neuropodium on chaetiger III with the dorsal edge enlarged (rather than one that is square or triangular). In addition, the branchiae of 
<taxonomicName lsidName="P. parapari" pageId="10" pageNumber="11" rank="species" species="parapari">P. parapari</taxonomicName>
sp. n. have long, naked, smooth distal tips, whereas those of 
<taxonomicName lsidName="P. komaeti" pageId="10" pageNumber="11" rank="species" species="komaeti">P. komaeti</taxonomicName>
and 
<taxonomicName lsidName="P. depauperata" pageId="10" pageNumber="11" rank="species" species="depauperata">P. depauperata</taxonomicName>
have pinnules extending to the distal end, and 
<taxonomicName lsidName="P. parapari" pageId="10" pageNumber="11" rank="species" species="parapari">P. parapari</taxonomicName>
lacks low dorsal crests on chaetigers 
<normalizedToken originalValue="X–XI">X-XI</normalizedToken>
/XIII. 
<taxonomicName class="Polychaeta" family="Spionidae" genus="Prionospio" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Prionospio parapari" order="Spionida" pageId="10" pageNumber="11" phylum="Annelida" rank="species" species="parapari">Prionospio parapari</taxonomicName>
sp. n. also differs from 
<taxonomicName lsidName="P. depauperata" pageId="10" pageNumber="11" rank="species" species="depauperata">P. depauperata</taxonomicName>
in that it has sabre chaetae without a distal filament, the notopodial hooded hooks start on chaetigers 
<normalizedToken originalValue="XIX–XXXVIII">XIX-XXXVIII</normalizedToken>
rather than 
<normalizedToken originalValue="XLV–XLVII">XLV-XLVII</normalizedToken>
, and the pygidium has two long lateral lobes rather than two short lateral cirri. Furthermore, 
<taxonomicName lsidName="P. parapari" pageId="10" pageNumber="11" rank="species" species="parapari">P. parapari</taxonomicName>
sp. n. is similar to 
<taxonomicName lsidName="P. oligopinnulata" pageId="10" pageNumber="11" rank="species" species="oligopinnulata">P. oligopinnulata</taxonomicName>
in that both species show the same pygidial structure, but differs in having cirriform rather than triangular second and third branchial pairs. In addition, the low dorsal crests on chaetigers 
<normalizedToken originalValue="X–XIV">X-XIV</normalizedToken>
are absent in 
<taxonomicName lsidName="P. parapari" pageId="10" pageNumber="11" rank="species" species="parapari">P. parapari</taxonomicName>
sp. n., the neuropodium on chaetiger III is oval with the dorsal edge enlarged (rather than subtriangular and ventrally pointed), and the sabre chaetae are bilimbate (rather than alimbate). 
<taxonomicName class="Polychaeta" family="Spionidae" genus="Prionospio" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Prionospio parapari" order="Spionida" pageId="10" pageNumber="11" phylum="Annelida" rank="species" species="parapari">Prionospio parapari</taxonomicName>
sp. n. is similar to 
<taxonomicName lsidName="P. rotunda" pageId="10" pageNumber="11" rank="species" species="rotunda">P. rotunda</taxonomicName>
Delgado-Blas, 2015 in that both species have large, rounded neuropodial postchaetal lamellae on chaetiger I, cirriform second and third branchial pairs, the first branchial pair always longer than fourth pair, and the same pygidium structure. However, 
<taxonomicName lsidName="P. parapari" pageId="10" pageNumber="11" rank="species" species="parapari">P. parapari</taxonomicName>
sp. n. differs from 
<taxonomicName lsidName="P. rotunda" pageId="10" pageNumber="11" rank="species" species="rotunda">P. rotunda</taxonomicName>
in having a bottle-shaped prostomium that is truncated on the anterior margin (rather than a pyriform and rounded one). In addition, the low dorsal crests in 
<taxonomicName lsidName="P. parapari" pageId="10" pageNumber="11" rank="species" species="parapari">P. parapari</taxonomicName>
sp. n. are present on chaetigers 
<normalizedToken originalValue="VIII–IX">VIII-IX</normalizedToken>
whereas in 
<taxonomicName lsidName="P. rotunda" pageId="10" pageNumber="11" rank="species" species="rotunda">P. rotunda</taxonomicName>
they are absent, and the neuropodium on chaetiger III is oval with an enlarged dorsal edge (rather than rounded). The differences between this new species and the other species examined are provided in the key.
</paragraph>
</subSubSection>
<subSubSection pageId="10" pageNumber="11" type="etymology">
<paragraph pageId="10" pageNumber="11">Etymology.</paragraph>
<paragraph pageId="10" pageNumber="11">The species is named in honor of Dr Julio Parapar, in recognition of his major contribution to the study of polychaetes from Spanish coasts.</paragraph>
</subSubSection>
<subSubSection pageId="10" pageNumber="11" type="type locality">
<paragraph pageId="10" pageNumber="11">Type locality.</paragraph>
<paragraph pageId="10" pageNumber="11">
<normalizedToken originalValue="Ría">Ria</normalizedToken>
de Ferrol and the mouth of Piedras River, Huelva, Spain.
</paragraph>
</subSubSection>
<subSubSection pageId="10" pageNumber="11" type="distribution">
<paragraph pageId="10" pageNumber="11">Distribution.</paragraph>
<paragraph pageId="10" pageNumber="11">To date, this species has been recorded only on the Spanish Atlantic coast (Ria de Ferrol and the mouth of Piedras River, Huelva).</paragraph>
</subSubSection>
</treatment>
</document>