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<document id="3D6AD7862D06C359C440D255B3580F9F" ENCODING="UTF-8" ID-GBIF-Dataset="a075b245-e167-44b5-8996-e1666012a460" ModsDocID="z01052p041" checkinTime="1247055711339" checkinUser="thomas" docAuthor="Wilson J. E. M. Costa &amp; Morevy M. Cheffe" docDate="2005" docId="585DC7541C167C5501BB36551031A02F" docLanguage="en" docName="2005_Costa_Cheffe_gg1.xml" docOrigin="Zootaxa 1052" docSource="http://www.zoobank.org/urn:lsid:zoobank.org:pub:F2E774DF-96BA-4F5E-AEF4-24F632537F8B" docTitle="Austrolebias univentripinnis Costa &amp; Cheffe, 2005, new species" docType="treatment" docVersion="14" lastPageNumber="47" masterDocId="F9CA257B496F0DD2C25CC2FA26A36268" masterDocTitle="Austrolebias univentripinnis sp. nov. (Teleostei: Cyprinodontiformes: Rivulidae): a new annual killifish from the Mirim Lagoon basin, southern Brazil." masterLastPageNumber="48" masterPageNumber="41" pageNumber="44" updateTime="1701325814437" updateUser="ExternalLinkService">
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<mods:title id="19C69AE4FEC8F91E6CE68B414BB73F0D">Austrolebias univentripinnis sp. nov. (Teleostei: Cyprinodontiformes: Rivulidae): a new annual killifish from the Mirim Lagoon basin, southern Brazil.</mods:title>
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<mods:name id="1136A2A4FC83F83A3D9B33441EBB67CB" type="personal">
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<mods:namePart id="77A21ECE48E7FB87FB79DC7E1B371FF5">Wilson J. E. M. Costa</mods:namePart>
</mods:name>
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<mods:namePart id="3CA0D6F60F445B67F182102B6B1AC060">Morevy M. Cheffe</mods:namePart>
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<mods:date id="F908A68EA08E1B908D296144491B03C3">2005</mods:date>
<mods:detail id="73A3AB7EBBE3E460A2DC67A66CD7A7D2" type="volume">
<mods:number id="25518D196FD788518B76042A99A75481">1052</mods:number>
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<mods:classification id="C2AA59F9FDCD757E323B8BC00E847EB8">journal article</mods:classification>
<mods:identifier id="6D8B9727943A8271F504BBCDE4C16742" type="Plazi-Custom">z01052p041</mods:identifier>
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<treatment id="585DC7541C167C5501BB36551031A02F" ID-DOI="http://doi.org/10.5281/zenodo.6267705" ID-GBIF-Taxon="100124205" ID-Zenodo-Dep="6267705" LSID="urn:lsid:zoobank.org:act:04BEE78C-D8E2-4FE9-B815-7628CD83F09D" httpUri="http://treatment.plazi.org/id/585DC7541C167C5501BB36551031A02F" lastPageNumber="47" pageNumber="44">
<subSubSection id="A78C52ACE1DB762DFE19EB520AABFAA9" type="nomenclature">
<paragraph id="5F85708552E798BA6AA03C7B1F5C2D41" pageNumber="44">
<taxonomicName id="DBE308BFFF665D845CC0B4968882EBFA" ID-CoL="5VXGL" LSID-ZBK="urn:lsid:zoobank.org:act:04BEE78C-D8E2-4FE9-B815-7628CD83F09D" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias univentripinnis Costa &amp; Cheffe 2005" order="Cyprinodontiformes" pageNumber="44" phylum="Chordata" rank="species" species="univentripinnis">Austrolebias univentripinnis</taxonomicName>
<taxonomicNameLabel id="99B4CF4D24F0A838CBD32F62DB479106" rank="species">new species</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection id="06C23DCD3CFBC21B084782EB9A38D10B" type="description">
<paragraph id="FAE970D051964F5899525CFC928241C4" pageNumber="44">(Figs. 1A-B)</paragraph>
</subSubSection>
<subSubSection id="646219BD31667F3B2A26A5B63CED140F" type="nomenclature">
<paragraph id="F023F65ADBE5F84B6FACF84D9BA3A258" pageNumber="44">
<materialsCitation id="222317AB15C047A9B4CAAE3DFE58729B" ID-GBIF-Occurrence="923900967" country="Brazil" stateProvince="Estado do Rio Grande do Sul">
<typeStatus id="DC6411F31DF8527ADDD25E9BD1CFF7F9">Holotype</typeStatus>
.
<collectionCode id="07C71B069EB45B017B6FF4CEDE81F7C7" collectionName="UFRJ">UFRJ</collectionCode>
6081, male, 24.0 mm SL;
<collectingCountry id="76D269B51A418964259E6F9F1A6D422A">Brazil</collectingCountry>
:
<collectingRegion id="78ECD588E68D7A55F696568AF3D808DC">Estado do Rio Grande do Sul</collectingRegion>
:
<normalizedToken id="B7337EFDBEE841472FC102E94DB0B468" originalValue="Município">Municipio</normalizedToken>
de
<normalizedToken id="3A11BC5D9E64A80DD2F8DEA8D154999D" originalValue="Jaguarão">Jaguarao</normalizedToken>
: Telho, temporary swamp about 200 m from
<normalizedToken id="331176063F81E75C29DCB0C82E0D7A81" originalValue="Jaguarão">Jaguarao</normalizedToken>
River bank, tributary to Mirim Lagoon, Patos Lagoon system; (22H 0268740 UTM 6402377); L. E. K.
<normalizedToken id="08C62A762FE40C854EC125F27F6982CA" originalValue="Lanés">Lanes</normalizedToken>
, M. V. Volcan, B. Klotzel &amp; G. M. Wallwitz,
<date id="9752FB4E986CEAFCA2A8F2A50FED221E" day="05" month="09" value="2004-09-05" year="2004">5 September 2004</date>
.
</materialsCitation>
</paragraph>
<paragraph id="E97081D942465DF6CD0A98AB19A0C4B5" pageNumber="44">
<materialsCitation id="B64C525310D39BCEA7A8564331C01B0A" ID-GBIF-Occurrence="923900959" country="Brazil" stateProvince="Estado do Rio Grande do Sul">
<typeStatus id="92341D809F47D8337CE3FC9854CB146B">Paratypes</typeStatus>
. All from
<normalizedToken id="D8682C6E995043AC76FEF3E740EDF6D4" originalValue="Município">Municipio</normalizedToken>
de
<normalizedToken id="36965D8959B37290931EA2C1ACAA6D2E" originalValue="Jaguarão">Jaguarao</normalizedToken>
,
<collectingRegion id="9CAA52FAD8129798A4D1F6C4361BFC53">Estado do Rio Grande do Sul</collectingRegion>
,
<collectingCountry id="02269BA7B4776FAB0671622D541FFA0B">Brazil</collectingCountry>
:
<collectionCode id="8D7C014CC7DCDBE7B1C025177B3F05B5" collectionName="CIMC">CIMC</collectionCode>
8625, 6 males, 22.6-34.6 mm SL, 27 females, 23.6-32.0 mm SL
</materialsCitation>
;
<materialsCitation id="59EE9FE339952E675DD20DA675E37D7B" ID-GBIF-Occurrence="923900966" country="Brazil" stateProvince="Estado do Rio Grande do Sul">
<collectionCode id="52669CC2E34762D8074A4F33A3BDFBF3" collectionName="UFRJ">UFRJ</collectionCode>
6082, 1 male, 32.6 mm SL, 3 females, 25.5-32.2 mm SL
</materialsCitation>
;
<materialsCitation id="360E0BE5A089761C446CDA65A3764990" ID-GBIF-Occurrence="923900965" country="Brazil" stateProvince="Estado do Rio Grande do Sul">
<collectionCode id="61BC081949E971AD3B52A6583C4F3AAD" collectionName="UFRJ">UFRJ</collectionCode>
6083, 3 males, 30.0-35.6 mm SL, 3 females, 26.6-33.0 mm SL (c&amp;s); collected with
<typeStatus id="48116D45EA57CEC67B63438B04D2760A">holotype</typeStatus>
</materialsCitation>
.
<materialsCitation id="61C757AC404063A234F259EC6DB014EE" ID-GBIF-Occurrence="923900960" country="Brazil" stateProvince="Estado do Rio Grande do Sul">
<collectionCode id="615951DD92D1583EB847F1E2429C7462" collectionName="CIMC">CIMC</collectionCode>
8629, 6 males, 30.1- 38.6 mm SL, 2 females, 26.8-27.2 mm SL; 27 de Novembro Street, between the second and the third bridge, about 10 km from the road BR-116; same collectors and data as
<typeStatus id="FE9C93ACFE4F4773F601E01FE9FAF6CB">holotype</typeStatus>
</materialsCitation>
.
<materialsCitation id="6552D6372C09383A0F4639E9AA005B6D" ID-GBIF-Occurrence="923900963" country="Brazil" stateProvince="Estado do Rio Grande do Sul">
<collectionCode id="792B9C457629B0D92E625C2E2AF07375" collectionName="CIMC">CIMC</collectionCode>
8631, 3 males, 30.2-36.5 mm SL, 9 females, 24.2-33.4 mm SL; Telho Creek floodplains; same collectors and date
</materialsCitation>
.
<materialsCitation id="52F70715E014F1EBD4B79E5498977EE1" ID-GBIF-Occurrence="923900962" country="Brazil" stateProvince="Estado do Rio Grande do Sul">
<collectionCode id="63BD13D858FC88A70BFBCEDE3E06C2F5" collectionName="CIMC">CIMC</collectionCode>
8635, 84 males, 14.2-40.5 mm SL, 90 females, 13.8-25.6 mm SL; Telho, about 21 km from the city of
<normalizedToken id="8EE6543F5C88DBA949FF1E584F36EED3" originalValue="Jaguarão">Jaguarao</normalizedToken>
; same collectors and date
</materialsCitation>
.
<materialsCitation id="16294A99AEC8343467D9D5E66BB89929" ID-GBIF-Occurrence="923900964" country="Brazil" stateProvince="Estado do Rio Grande do Sul">
<collectionCode id="998905AA57A2FE390E3489F4994A7CD1" collectionName="CIMC">CIMC</collectionCode>
8642, 19 males, 26.0-39.4 mm SL, 22 females, 21.2-32.3 mm SL; same locality and collectors as
<typeStatus id="CA7A283E52CE8F20BB8B6E168459C8C6">holotype</typeStatus>
,
<date id="8EEB6512E72F527687C6EA8E96843216" day="06" month="09" value="2004-09-06" year="2004">6 September 2004</date>
</materialsCitation>
.
<materialsCitation id="D30A280D4BE269F8C3CAB2DA24BB07D0" ID-GBIF-Occurrence="923900961" country="Brazil" stateProvince="Estado do Rio Grande do Sul">
<collectionCode id="E8C3F7F2E0D721314E33A4772F941257" collectionName="UFRJ">UFRJ</collectionCode>
6086, 17 males, 20.5-35.8 mm SL, 11 females, 20.2-30.4 mm SL; same locality as
<collectionCode id="49B5129C736177242B55235C1076A015" collectionName="CIMC">CIMC</collectionCode>
8635; L. E. K.
<normalizedToken id="AFC5A2B47AFA20467DA4EACF1B9D48C8" originalValue="Lanés">Lanes</normalizedToken>
, M. V. Volcan, B. Klotzel &amp; A. C.
<normalizedToken id="5AA4250F4C288BF673641471C1FBBF61" originalValue="Gonçalves">Goncalves</normalizedToken>
,
<date id="6D82B8A5CA697E5A10A5DB5BCFC56953" day="24" month="10" value="2004-10-24" year="2004">24 October 2004</date>
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="1275D90D6E58D579F94B7DF79BB4BEF4" type="diagnosis">
<paragraph id="D235073BB4612783F00990F7405F6CFD" lastPageNumber="45" pageNumber="44">
Diagnosis: Differs from all congeners, except
<taxonomicName id="B47D6ED7D066326F625B21737C82FA9A" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="44" phylum="Chordata" rank="species" species="bellottii">A. bellottii (Steindachner)</taxonomicName>
and
<taxonomicName id="D507655154CA47D492FE958DA309D96F" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="44" phylum="Chordata" rank="species" species="melanoorus">A. melanoorus (Amato)</taxonomicName>
, in having the entire urogenital papilla attached to the anal fin in males (vs. urogenital papilla free from the anal fin). The new species is distinguished from
<taxonomicName id="F54D1A6E246CC0F7AA26A25E728533F7" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="44" phylum="Chordata" rank="species" species="bellottii">A. bellottii</taxonomicName>
in having the dorsal-fin origin more anteriorly positioned in males (between neural spines of seventh and ninth vertebrae, vs. between neural spines of ninth and eleventh vertebrae) with a consequent shorter predorsal length (49.5-52.9% SL, vs. 54.2- 57.7% SL). It also differs from those two species in having a shorter anal-fin base (42.6- 46.4% SL in males and 26.5-30.9 % SL in females, vs. 47.1-50.8% SL and 33.8-36.1% SL, respectively), a more slender body (body depth 36.6-39.8% SL in males, 36.0-40.4% SL in females, vs. 40.1-46.1% SL and 39.4-45.5% SL, respectively) and a wider basihyal (width about 65% of length, vs. about 50%). In addition, it also differs from
<taxonomicName id="AD167216AB2E3129EB762EF407304A26" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="44" phylum="Chordata" rank="species" species="bellottii">A. bellottii</taxonomicName>
in usually having more vertical rows of bright dots on the flank in males (11-18 vs. 9-12). The new species is distinguished from
<taxonomicName id="301B24C277B125069D7B2E7192B59384" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="44" phylum="Chordata" rank="species" species="melanoorus">A. melanoorus</taxonomicName>
by its dorsal profile, which is slightly convex in females (vs. strongly convex), pelvic-fin bases united at about 75-90% of its medial margin (vs. about 10-25%), and by a combination of distinct color patterns: males with flank dark bluish gray with vertical rows of bright greenish blue dots (vs. light bluish gray bars alternating with dark gray bars), and unpaired fins with bright dots (vs. elongate light spots and bright lines parallel to fin rays); females either with one or two black spots on the center of the flank or (more often) black spots absent (vs. always with 5-15 black spots). It may also be distinguished from
<taxonomicName id="F1A017890F636F990BB6824FD2B6C79D" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="44" phylum="Chordata" rank="species" species="melanoorus">A. melanoorus</taxonomicName>
by possessing a single anterior rostral neuromast, except in one specimen with two (vs. always two anterior rostral neuromasts).
</paragraph>
</subSubSection>
<subSubSection id="AF1A1CDE15CC46604C1735C77F1D2DD8" type="description">
<paragraph id="AAD58EE2201CAD3BB10FA362292FD5BB" pageNumber="45">Description: Morphometric data appear in Table 1. Male larger than female, largest male 35.6 mm SL. Dorsal profile slightly convex from snout to end of dorsal-fin base, approximately straight on caudal peduncle. Ventral profile convex from lower jaw to end of anal-fin base, nearly straight on caudal peduncle. Greatest body depth at level of pelvic-fin base. Body deep and compressed. Snout blunt, jaws short.</paragraph>
<paragraph id="1FA37469CDFDF337111755A144649885" pageNumber="45">Tip of dorsal and anal fins rounded. Anteromedian rays of anal fin of female lengthened, anal fin shape approximately triangular. Caudal fin rounded. Pectoral fin elliptical, posterior margin on vertical between base of 3rd and 5th anal-fin rays in male, and between pelvic-fin base and urogenital papilla in female. Tip of pelvic fin reaching between base of 3rd and 4th anal-fin ray. Medial pelvic-fin membranes 75-90% coalesced (Fig. 2A). Entire urogenital papilla of male attached to anal fin (Fig. 2B). Dorsal-fin origin on vertical slightly posterior to anal-fin origin in male, between base of 2nd and 4th anal-fin ray, and between neural spines of 7th and 9th vertebrae. In female, dorsal-fin origin on vertical just anterior to anal-fin origin, anal-fin origin on vertical through base of 2nd dorsal-fin ray, to dorsal-fin origin on vertical slightly posterior to anal-fin origin, on base of 2nd anal-fin ray; dorsal-fin origin between neural spines of 10th and 12th vertebrae. Anal-fin origin between pleural ribs of 7th and 9th vertebrae in male, between pleural ribs of 9th and 11th vertebrae in female. Dorsal-fin rays 23-28 in male, 20-23 in female; anal-fin rays 26-30 in male, 22-26 in female; caudal-fin rays 23-25; pectoral-fin rays 11-12; pelvic-fin rays 5 (last three characters same for both sexes).</paragraph>
<paragraph id="368A219700B441434CC8B3D951FD0538" pageNumber="45">Scales large, cycloid. Body and head entirely scaled, except anterior ventral surface of head. Few scales on anal-fin base, no scales on dorsal-fin base. Frontal squamation G- patterned, except H-patterned in one specimen; E-scales not overlapping medially; scales arranged in transverse pattern, all scales with exposed posterior margin. Longitudinal series of scales 28-30; transverse series of scales 13-14; scale rows around caudal peduncle 16. Minute contact organs on scales of ventral portion of male flank. Row of minute contact organs on uppermost pectoral-fin ray.</paragraph>
<paragraph id="0773852749767BC9BC6ACC24686697FF" pageNumber="45">Cephalic neuromasts: supraorbital 17-18, parietal 3, anterior rostral 1 except one specimen with 2, posterior rostral 1, infraorbital 2 + 22-25, preorbital 3, otic 3, postotic 3- 4, supratemporal 1, median opercular 1, ventral opercular 2, preopercular 24-26, mandibular 15, lateral mandibular 5.</paragraph>
<paragraph id="6DEA9359E80AF8256E14CB838F59DDFD" pageNumber="45">Jaw teeth gently bowed. Basihyal roughly triangular, its width about 65% of length; basihyal cartilage long, about 65% of total basihyal length, with pronounced lateral projection. Six branchiostegal rays. Urohyal deep. Second pharyngobranchial teeth 6-8. Gill-rakers on first branchial arch 3-4 + 11-12. Two, one or no dermosphenotic ossifications. Ventral process of posttemporal long. Total vertebrae 29-31.</paragraph>
<paragraph id="BAD37F7AF2B1C7095D45F51CA9C3667C" pageNumber="46">Coloration in life: Male: side of body dark greenish gray, with 11-18 vertical rows of bright greenish blue dots, often forming lines; venter yellowish white. Side of head dark greenish gray to bright blue on opercle and infraorbital region; pale gray infraorbital bar and dark gray supraorbital bar. Iris dark yellow, with dark brown bar through center of eye. Dorsal fin dark bluish green to pale pink on anterodistal portion, with light green dots and posterodistal black margin. Anal fin dark bluish green to light blue on distal portion, with subbasal row of small light green spots; preserved specimens with black distal stripe. Caudal fin dark bluish green, with greenish blue dots; posterior portion hyaline with green iridescence. Pelvic fin dark bluish green with black tip. Pectoral fin hyaline with dark greenish blue ventral margin, extending from fin base to tip of fifth or sixth ventralmost rays.</paragraph>
<paragraph id="8C2BB51C804B94BA0D05299CE66EA284" pageNumber="46">Female: side of body light yellowish brown, with vertically elongate dark gray spots, often vertically arranged, sometimes forming bars; sometimes one or two black spots on anterocentral portion of flank; venter pale yellow. Opercular region pale greenish blue.</paragraph>
<paragraph id="53CEC1E7EDC5603C2D904FC2F07213D5" pageNumber="47">Iris light yellow with gray bar through center of eye. Fins hyaline; dorsal and anal fins with dark gray small spots on basal region.</paragraph>
</subSubSection>
<subSubSection id="563BA11797C88A5D36792F0858646C3F" type="distribution">
<paragraph id="2A641996A1B2FD9E1E5E8D77EF517E6A" pageNumber="47">
Distribution:
<normalizedToken id="03771FC4A2C870109913A1980C7420F5" originalValue="Jaguarão">Jaguarao</normalizedToken>
River drainage, Mirim Lagoon basin, Patos Lagoon system, southern Brazil.
</paragraph>
</subSubSection>
<subSubSection id="4DBA6BD552B70002855C298DF6BA6503" type="biology_ecology">
<paragraph id="675AB5E38E56ACA07325B84DEAFDC126" pageNumber="47">Habitat notes: The new species was collected in small shallow marshes (about 40 cm deep). The pH was 6.6-6.8 and the water was whitish.</paragraph>
</subSubSection>
<subSubSection id="7E4D48974DA56B736B420A05781311B2" type="etymology">
<paragraph id="DC2FDB7D6419DBC261AB709A29918F70" pageNumber="47">Etymology: From the Latin uni (single, fused), ventri (ventral) and pinnis (fin), referring to the median fusion of the pelvic fins.</paragraph>
</subSubSection>
<subSubSection id="2924E5FB242BD8DBFB47A952BA601DB6" type="discussion">
<paragraph id="6EC4DBE73F226C3A9034ACA1480B90EA" pageNumber="47">Discussion</paragraph>
<paragraph id="E40204CA7A2FE09E939349193FD7CE5C" pageNumber="47">
<taxonomicName id="CB1DDEBF11BFF6F8C9DB9A7CFE9FE68E" LSID-ZBK="urn:lsid:zoobank.org:act:04BEE78C-D8E2-4FE9-B815-7628CD83F09D" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias univentripinnis Costa &amp; Cheffe 2005" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="univentripinnis">Austrolebias univentripinnis</taxonomicName>
is a member of the clade diagnosed, in a recent phylogenetic analysis of the genus (Costa, 2002), by the possession of a long and triangular anal fin in females (Fig. 1B). This condition is found in
<taxonomicName id="EA953DFBE41D7E42F6AFADF85C708ADF" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="viarius">A. viarius</taxonomicName>
,
<taxonomicName id="6A2399F5BC4DCF3EEB35E47D9CEC7F94" LSID-ZBK="urn:lsid:zoobank.org:act:E7E7172F-5FD8-4443-AB99-59CE5DCB21D2" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias arachan Loureiro, Azpelicueta &amp; García 2004:23" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="arachan">A. arachan</taxonomicName>
,
<taxonomicName id="1CB039355637ED0E1DF8E4427D75EB4E" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="adloffi">A. adloffi</taxonomicName>
,
<taxonomicName id="805A2CC6F50A4BC035452A6A5A10A4DA" LSID-ZBK="urn:lsid:zoobank.org:act:68A990E3-DEDD-45B8-A243-9ADA95AB49A1" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias charrua Costa &amp; Cheffe 2001:182" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="charrua">A. charrua</taxonomicName>
,
<taxonomicName id="FD734C4EA4EB7DAE2D148DC7A21BE06D" LSID-ZBK="urn:lsid:zoobank.org:act:030CB3A0-6C77-45BE-AD07-AADBEE8B0E5C" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias minuano Costa &amp; Cheffe 2001:185" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="minuano">A. minuano</taxonomicName>
,
<taxonomicName id="2D8EA3C480E748C9016E43CA15B8DD41" LSID-ZBK="urn:lsid:zoobank.org:act:62B217B7-3D1F-459D-89A1-8242813EBC4E" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias nigrofasciatus Costa &amp; Cheffe 2001:187" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="nigrofasciatus">A. nigrofasciatus</taxonomicName>
,
<taxonomicName id="338403D29623E4D0065E3890850B7495" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="vandenbergi">A. vandenbergi</taxonomicName>
,
<taxonomicName id="6D8AA5D53D5A63585661CB1B0A30AB12" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="bellottii">A. bellottii</taxonomicName>
,
<taxonomicName id="0A3E1482039582CD005C3EA6F6FCA596" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="melanoorus">A. melanoorus</taxonomicName>
and
<taxonomicName id="49C6CA337B306D46DE16721FEF7CA25E" LSID-ZBK="urn:lsid:zoobank.org:act:04BEE78C-D8E2-4FE9-B815-7628CD83F09D" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias univentripinnis Costa &amp; Cheffe 2005" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="univentripinnis">A. univentripinnis</taxonomicName>
. All these species also have the medial margin of the pelvic-fin united, an uncommon condition among cynolebiatins (Costa, 2002). In
<taxonomicName id="73E535D48E1A24473C32AECFEA40D79C" LSID-ZBK="urn:lsid:zoobank.org:act:04BEE78C-D8E2-4FE9-B815-7628CD83F09D" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias univentripinnis Costa &amp; Cheffe 2005" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="univentripinnis">A. univentripinnis</taxonomicName>
, the condition is pronounced, the fins being united over 75-90 % of their medial margins (Fig. 2A), in contrast to 60% or less as in
<taxonomicName id="CC1E17742A5F9A65BCB89F160F625864" LSID-ZBK="urn:lsid:zoobank.org:act:E7E7172F-5FD8-4443-AB99-59CE5DCB21D2" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias arachan Loureiro, Azpelicueta &amp; García 2004:23" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="arachan">A. arachan</taxonomicName>
,
<taxonomicName id="0CD5657B61F9BBCB1D11BE57AF57610E" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="melanoorus">A. melanoorus</taxonomicName>
,
<taxonomicName id="327C2B8656D9E6A6C89AD303CA80ABED" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="viarius">A. viarius</taxonomicName>
,
<taxonomicName id="9FB713E28C41947460AB43CAE282AF72" LSID-ZBK="urn:lsid:zoobank.org:act:68A990E3-DEDD-45B8-A243-9ADA95AB49A1" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias charrua Costa &amp; Cheffe 2001:182" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="charrua">A. charrua</taxonomicName>
,
<taxonomicName id="E3928CB3765B3536A32958EF0E60E6B2" LSID-ZBK="urn:lsid:zoobank.org:act:030CB3A0-6C77-45BE-AD07-AADBEE8B0E5C" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias minuano Costa &amp; Cheffe 2001:185" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="minuano">A. minuano</taxonomicName>
, and
<taxonomicName id="AAB1B9B561157D8B58A1BABD8A56854E" LSID-ZBK="urn:lsid:zoobank.org:act:62B217B7-3D1F-459D-89A1-8242813EBC4E" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias nigrofasciatus Costa &amp; Cheffe 2001:187" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="nigrofasciatus">A. nigrofasciatus</taxonomicName>
.
</paragraph>
<paragraph id="A489A3A60743A8A632DCBE283C8437BF" pageNumber="47">
A derived condition supports the monophyly of the assemblage including
<taxonomicName id="659A565B73016F2FC4FE508BE74BD109" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="vandenbergi">A. vandenbergi</taxonomicName>
,
<taxonomicName id="8FB1DE68005EB406FE289388027E06D1" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="bellottii">A. bellottii</taxonomicName>
,
<taxonomicName id="C92957809B4927EDCF9E7A19744F9CD0" LSID-ZBK="urn:lsid:zoobank.org:act:04BEE78C-D8E2-4FE9-B815-7628CD83F09D" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias univentripinnis Costa &amp; Cheffe 2005" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="univentripinnis">A. univentripinnis</taxonomicName>
and
<taxonomicName id="4C357C6691BE650EE771F7B1A2FFA0BA" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="melanoorus">A. melanoorus</taxonomicName>
. It is the frequent possession of one or two small dermal ossifications approximately at the place of the dermosphenotic (Costa, 2002), which is absent in all other species of the clade including
<taxonomicName id="172A6991933F436CA8A9929898599775" LSID-ZBK="urn:lsid:zoobank.org:act:4ECB6721-F186-470F-BF8F-5495ADE351AB" family="Rivulidae" genus="Cynolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Cynolebias Steindachner 1876:172" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="genus">Cynolebias</taxonomicName>
,
<taxonomicName id="06CF836FB68A6739C9FC6A542FE8BCC5" LSID-ZBK="urn:lsid:zoobank.org:act:88823811-072D-4E95-AB68-11E30A796DE0" family="Rivulidae" genus="Megalebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Megalebias Costa 1998:76" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="genus">Megalebias</taxonomicName>
and
<taxonomicName id="63AFB1439E944A0943FF034888FBB652" LSID-ZBK="urn:lsid:zoobank.org:act:AA9F26E7-8843-4CAD-8100-4C06857E5AA4" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias Costa 1998:75" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="genus">Austrolebias</taxonomicName>
(Costa, 1998). Although this condition is not always present in all specimens of these four species (for example, among six cleared and stained
<typeStatus id="2DADD826052D437103AAAA0C8AC84DA6">paratypes</typeStatus>
of
<taxonomicName id="AB745DBA17CD3FEE77E2686E35615B15" LSID-ZBK="urn:lsid:zoobank.org:act:04BEE78C-D8E2-4FE9-B815-7628CD83F09D" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias univentripinnis Costa &amp; Cheffe 2005" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="univentripinnis">A. univentripinnis</taxonomicName>
, one specimen had two ossifications, three specimens had one, and in two specimens both ossifications were absent), this condition does not occur in any other species of
<taxonomicName id="9F40EE11C6A5397AB7AD7438DDF4702B" LSID-ZBK="urn:lsid:zoobank.org:act:AA9F26E7-8843-4CAD-8100-4C06857E5AA4" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias Costa 1998:75" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="genus">Austrolebias</taxonomicName>
. Relationships within the clade including
<taxonomicName id="E00DA0E8C050439D9900519155E37C08" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="vandenbergi">A. vandenbergi</taxonomicName>
,
<taxonomicName id="A21105BE26D50671BB5E860855C01111" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="bellottii">A. bellottii</taxonomicName>
,
<taxonomicName id="40257E022161C3E3EAED161E57523099" LSID-ZBK="urn:lsid:zoobank.org:act:04BEE78C-D8E2-4FE9-B815-7628CD83F09D" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias univentripinnis Costa &amp; Cheffe 2005" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="univentripinnis">A. univentripinnis</taxonomicName>
and
<taxonomicName id="B83178DAC9D99740C8CD94AF4B2DA743" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="melanoorus">A. melanoorus</taxonomicName>
are still unclear, but among them and among all species of the clade Austrolebias-Megalebias-Cynolebias, only
<taxonomicName id="599B5A7EE8B1F6AB61E52E8D210A83C4" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="bellottii">A. bellottii</taxonomicName>
,
<taxonomicName id="2EBB4042980DB7755D3903355BEA090F" LSID-ZBK="urn:lsid:zoobank.org:act:04BEE78C-D8E2-4FE9-B815-7628CD83F09D" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Austrolebias univentripinnis Costa &amp; Cheffe 2005" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="univentripinnis">A. univentripinnis</taxonomicName>
and
<taxonomicName id="EA541240271C1653AAC45BAC2AF3BCE3" family="Rivulidae" genus="Austrolebias" higherTaxonomySource="CoL" kingdom="Animalia" order="Cyprinodontiformes" pageNumber="47" phylum="Chordata" rank="species" species="melanoorus">A. melanoorus</taxonomicName>
have the urogenital papilla attached to the anterior margin of the anal fin in males (Costa, 2002) (Fig. 2B).
</paragraph>
</subSubSection>
</treatment>
</document>
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