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Revision of the Loricariid Genera Hemipsilichthys and Isbrueckerichthys (Teleostei: Siluriformes), with Descriptions of five New Species of Hemipsilichthys

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Revision of the Loricariid Genera Hemipsilichthys and Isbrueckerichthys (Teleostei: Siluriformes), with Descriptions of five New Species of Hemipsilichthys See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/283437399 Revision of the loricariid genera Hemipsilichthys and Isbrueckerichthys (Teleostei: Siluriformes), with descriptions of five new species of Hemipsilichthys Article in Ichthyological Exploration of Freshwaters · June 2002 CITATIONS READS 56 564 2 authors: Edson H. L. Pereira Roberto Esser Reis Pontifícia Universidade Católica do Rio Grande do Sul Pontifícia Universidade Católica do Rio Grande do Sul 40 PUBLICATIONS 538 CITATIONS 167 PUBLICATIONS 6,270 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: Sistemática de Corydoradinae (Corydoradinae Systematics) View project Genetic Heritage and Biodiversity Sciences View project All content following this page was uploaded by Edson H. L. Pereira on 02 April 2016. The user has requested enhancement of the downloaded file. 97 Ichthyol. Explor. Frcshwaters, Vol. 13, fo.2, pp. 97-146, 26 figs., 4 tabs., June 2002 @2oo2by Verlag Dr. Friedrich Pfeil, Miinchen, Germany - ISSN 0936-9902 Revision of the loricariid genera Hemipsilichthys and Isbrueckerichthys (Teleostei: Siluriformes), with descriptions of five new species of Hemipsilichthys Edson H. L. Pereira' and Roberto E. Reis' Genera HCl1IipsilicJlthys and Isbrueckerichtllys are revised. Eighteen species are recognized in the genus Hcmipsilich­ thys: H. bahia/IllS, H. calmolli, H. cerOSlIS, H. garbei, H. gO/Jio, H./JIl1tllca, H.lIlIdIlIIlS, H. papillatus, H. regalli, H. spiel/dellS, I-f. steiJldacJmcri, H. stepha/illS, and H. vestigipilll1is. Five new species of HelllipsilichtJlYs are described: H. stoll/ias and H. flzygoJechis from coastal rivers of Santa Catarina State; H. Ilystrix and H. cllrycephaills from the upper rio Uruguai drainage, and H. hypselliTl/s from coastal rivers of northestern Rio Grande do Sui State. T""o species are recognized in IsbrueckericJltJlYs: I. dllseni and /. alipiol/is. With the exception of H. regal/i, from the rio Negro, Amazon basin, all species of Hemipsilichtltys and lsbrueckericlttllys are from the Brasilian shield between Rio Grande do Sui and Southern Bahia. Upsilool/s is synonymized with Hemipsi/iclttltys, and U. victori is synonymyzed with H. gobio. Hemipsi/icltthys stei"dacJ",eri is resurrected from the synonymy of H. calmolli. Lectotypes are designated for H. calmoni, H. steilldacJl1leri, and H. eer05l/S. Os generos Hemipsilichlllys e Isbrueckerichthys sao revisados. Dezoito espeeies sao assinaladas para 0 genero Hemipsilicltlllys: H. bahialllls, H. calmoni, H. ceraslls, H. garbei, H. gobio, H. mullica, H. IlIldulus, H. papillallls, H. regal/i, H. spiel/dellS, H. steilldacJmeri, H. stephmllls, and H. t't!Stigipil/llis. Cinco novas especies de Helllipsi!iclltltys sao descntas: H. stoll/ias e H. azygolechis dos nos costeiros do estado de Santa Catarina; H. Ifyslr;x e H. ellrycepltahlS do rio Uruguai superior e H. hypselurus dos rios cosleiros do nordeste do Rio Grande do SuI. Duas especies sao reconhecidas em Islmfeckericllthys: I. duselli c I. a/ipiollis. Com ex~o de H. regalli que e do rio Negro, bacia amaz6nica, todas as especies de Hemipsilichtltys e Isbrueekericltthys sao do escudo brasileiro entre 0 Rio Grande do SuI e 0 Sul da Bahia. Upsi/odus e soninimizado com Hcmipsi/ichtllys, e U. victori e sinonimizado com H. gobio. Hemipsi/icltthys steilldaclllleri e retirado da sinonimia de H. calmolli. Sao designados lect6tipos para H. ea/molli, H. steilldaclllleri e 1-1. cerasus. Introduction lava flows of the Brazilian shield. Most species are found in the coastal drainages from southern Both Hemipsilichthys and Isbrueckerichthys are com­ Brazil north to the rio Almada in southern Bahia posed of small- to medium-sized species of cas­ State and headwaters of the rio Sao Francisco, codas (armored catfishes, Loricariidae), that in­ while one species was described from a tributary habit the rivers running on the mesozoic basaltic cf the rio Negro, in the heart of the Amazon. • Museu de Ciencias c Tecnologia - PUCRS, P. O. Box 1429, 90619-900 Porto Alegre, RS, Brazil. Email: [email protected]@pucrs.br lchthyol. Explor. Freshwaters, Vol. 13, No.2 98 Species of these genera are commonly found in ess); plates on dorsal-fin base (number of dorsal small to medium headwater streams with clear, plates lateral to the dorsal-fin base); plates be­ fast funning, and well-oxygenated water, where tween dorsal and adipose fins (number of plates the bottom is composed of rocks, boulders, and in dorsal series between last dorsal-fin branched sometimes gravel. Standard length of HClllipsil­ ray and origin of adipose-fin spine); plates be­ ichtltys species varies in a four-fold basis, from a tween adipose and caudal fins (number of plates maximum of 34 mm in adult male H. IlIIdlllus to in dorsal series between the adipose membrane about 156 mm in adult male H. gobia. and the caudal fin); plates on anal-fin base Only two species have been allocated in 15­ (number of plates in ventral series lateral to the brueckericlithys, J. dllsclli and l. alipiolJis, while 13 anal-fin base); plates between anal and caudal species have been traditionally assigned to Hellli­ fins (number of plates in ventral series between psiliclithys: H. go/Jio, H. call1/olli, H. garbei, H. steill­ the last anal-fin branched ray and the caudal fin); dnc!lIlI:ri, H. regal/i, H. ceroslls, H. vestigipillllis, azygous plates (number of azygous plates pre­ H.splClldcJls, H. IIIlItllCI1, H. stephmlJls, H. Ill/dlllus, ceding the adipose-fin spine); premaxillary and and H. papiflatlls. An additional species, CorYIll­ dentary teeth (counted separately in both sides). bop/wiles bahimllls has recently been tranferred to In case of missing teeth, the space left was count~ Helllipsi/ieill/I!!s by Armbruster et al. (2000). ed as a tooth. The present paper aims to present a taxonom­ All type localities are listed as in the original ic revision of the genera HCII/ipsilichfhY5 and 15­ descriptions, with corrections and or clarifying bml?ckericllthys, redescribing the often confused, notes in square brackets when necessary. In the previously known species and describing five lists of material examined the museum ;'1Cronym new species. A detailed assessment of the phylo­ and catalogue number comes first, followed by genetic relationships of these species, as well as the number of specimens in that lot and the range other related genera, is currently being prepared, of standard length. The number of specimens and is deferred to another paper. measured in that lot for the morphometric com­ parisons in Table 1-4, if any, follows the total number ofspecimens in parenthesis. The detailed Material and methods collecting locality finishes each entry. in case of type material, date of collection and coUector are Specimens used in this shldy belong to the fol­ also included. All holotypes of new species are lowing institutions: DZSJRP, Universidade Fed­ males. In the diagnoses for each species below eral de Sao jose do Rio Preto; lRSNB, Institut we present distinguishing characters that help to Royal des Sciences Naturelles de Belgique, Brux­ distinguish one species from others, with no phy­ eUes; MCP, Museu de Ciencias e Tecnologia, Por­ logenetic information implied. to Alegre; MNRj, Museu Nacional, Rio de janei­ in the State of Santa Catarina there are two ro; MZUSP, Museu de Zoologia da Universidade rivers named Cubah'io. These are referred herein de Sao Paulo; NMW, Naturhistorisches Museum, as rio Cubatao N, for the river in the northern Wien; UFRCS, Departamento de Zoologia da portion of Santa Catarina near joenville, and rio Universidade Federal do Rio Grande do Sut Por­ Cubatao S, for the river near A.guas Momas. Ab­ to Alegre; ZMUC, Zoologisk Museum, Copenha­ breviations used are SL (standard length) and HL gen; and ZSM, Zoologische Staatssammlung, (head length). Miinchen. Body plates counts and nomenclature follow Schaefer (1997). Measurements follow Boeseman Hemipsilic1lt1lys Eigenmann & Eigenmann (1968), and were taken from point to point with electronic calipers, under a dissecting microscope XCIIOIIIYS/IIS Liitken, 1874: 217 (type-species: XCIJ­ when necessary. Measurements were taken on OlllyStllS gobio Liitken, 1874 by original desig­ the left side of all specimens, except when the nation; pre-occupied in Pisces) character was damaged. Counts were also taken HC/l/ipsi/ichthys Eigenmann & Eigenmann, 1889: on the left side, except for those that are taken on 46 (type-species XCIIOIllYStllS gobio Liitken, both sides (noted below), and include: mid-ven­ 1874; name in substitution for XCIIOllIysfllS tral plate series (number of plates with the lateral Lii tken, 1874) line, counted from the c1eithral posterior proc- Pereira & Reis: Revision of Hemipsilichtllys and Isbrul'ckt'richthys 99 Psilicillilys Steindachner, 1907: 82 (type-species: 4. Dorsal series of plates complete, with plates Hemipsilichtllys calmon; Steindachner, 1907 by between head and caudal peduncle; eye monotypy. Generic name was an error. Name large (12.0-14.7 % HL); c1eithrum narrow preoccupied in fossil fishes by PsiJic11thys Halt (26.7-29.7 % SL) (rio Paraiba do Sui). 1900) ............................................................. H. gobio Pareiorllaphis Miranda Ribeiro, 1918: 106 (type­ Dorsal series of plates reduced, with no species: HC1Ilipsilichthys calmou; Steindachner, plates behveen dorsal-fin origin and end of 1907 by subsequent designation of Regan, adipose fin; eye small (8.6-11.8 % HL);
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