Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Neopterygii
Infraclassis: Teleostei
Megacohors: Osteoglossocephalai
Supercohors: Clupeocephala
Cohors: Otomorpha
Subcohors: Ostariophysi
Sectio: Otophysa
Ordo: Siluriformes
Familia: Erethistidae
Genus: Erethistoides
Species: E. ascita – E. cavatura – E. infuscatus – E. longispinis – E. luteolus – E. montana – E. pipri – E. senkhiensis – E. sicula – E. vesculus
Name
Erethistoides Hora, 1950: 190
Type species: Erethistoides montana ♂ Hora, 1950. Type by original designation.
References
Hora, S.L. 1950: Siluroid fishes of India, Burma and Ceylon. XIII. Fishes of the genera Erethistes Müller and Troschel, Hara Blyth and of two new allied genera. Records of the Indian Museum (Calcutta), 47(pt 2): 183–202, Pls. 1-2.
Lakpa Tamang, Shivaji Chaudhry & Dhrupad Choudhury, 2008, Ichthyological Exploration of Freshwaters 19 (2): 185–191 [1]
Ng, H.H.; Ferraris, C.J., jr.; Neely, D.A. 2012: The catfish genus Erethistoides (Siluriformes: Sisoridae) in Myanmar, with descriptions of three new species. Zootaxa, 3254: 55–68. Preview
Erethistoides is a genus of South Asian river catfishes.
Species
There are currently 10 recognized species in this genus:[1][2]
Erethistoides ascita H. H. Ng & Edds, 2005
Erethistoides cavatura H. H. Ng & Edds, 2005
Erethistoides infuscatus H. H. Ng, 2006
Erethistoides longispinis H. H. Ng, Ferraris & Neely, 2012[2]
Erethistoides luteolus H. H. Ng, Ferraris & Neely, 2012[2]
Erethistoides montana Hora, 1950
Erethistoides pipri Hora, 1950
Erethistoides senkhiensis Tamang, Chaudhry & Choudhury, 2008
Erethistoides sicula H. H. Ng, 2005
Erethistoides vesculus H. H. Ng, Ferraris & Neely, 2012[2]
Distribution and habitat
This genus is known from the sub-Himalayan region of the Indian subcontinent.[3] They are found in the Brahmaputra and Meghna drainages, northern India and Nepal.[4]
Description
Erethistoides is distinguished from all other erethistids by having the anterior margin of the pectoral fin spine with serrations directed toward the tip of the spine distally, and away from the tip proximally; however, the use of this as a diagnostic character has been questioned as some specimens of Erethistes filamentosa also show this trait.[3] They also lack a thoracic adhesive apparatus present in some other erethistids, and a smooth to granulate anterior margin on the dorsal fin spine, moderate gill openings that extend to the underside of the fish, a papillate upper lip, and 9–11 anal fin rays.[4] The head is depressed and triangular, and the body is elongate and compressed. The eyes are small to moderate and are placed dorsolaterally in the posterior half of the head. The pectoral fin spine is serrated anteriorly and posteriorly. The dorsal fin spine is serrated posteriorly but not anteriorly.[4]
References
Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Erethistoides". FishBase. December 2011 version.
Ng, H.H., Ferraris, C.J.Jr. & Neely, D.A. (2012): The catfish genus Erethistoides (Siluriformes: Sisoridae) in Myanmar, with descriptions of three new species. Zootaxa, 3254: 55–68.
Ng, Heok Hee (2005). "Erethistoides sicula, a new catfish (Teleostei: Erethistidae) from India" (PDF). Zootaxa. 1021: 1–12.
Thomson, Alfred W.; Page, Lawrence M. (2006). "Genera of the Asian Catfish Families Sisoridae and Erethistidae (Teleostei: Siluriformes)" (PDF). Zootaxa. 1345: 1–96.
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