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Revision of the endemic Malagasy cavefish genus Typhleotris (Teleostei, Gobiiformes, Milyeringidae), with discussion of its phylogenetic placement and description of a new species

by: Sparks, John S

Publication date: 2012

Usage: Attribution-NonCommercial-ShareAlike 4.0 International

Topics: Typhleotris mararybe, Typhleotris, Color, Hypogean fishes, Gobiidae, Phylogeny, Fishes, Typhleotris mararybe -- Classification, Typhleotris -- Classification, Typhleotris mararybe -- Color, Hypogean fishes -- Madagascar -- Itampolo Region -- Classification, Hypogean fishes -- Color -- Madagascar -- Itampolo Region, Gobiidae -- Madagascar -- Itampolo Region -- Classification, Gobiidae -- Phylogeny, Fishes -- Madagascar -- Itampolo Region -- Classification, Fishes -- Color -- Madagascar -- Itampolo Region, Fishes -- Phylogeny

Publisher: [New York] : American Museum of Natural History

Collection: americanmuseumnaturalhistory; biodiversity

Contributor: American Museum of Natural History Library

Language: English

Rights: http://biodiversitylibrary.org/permissions

Rights-holder: American Museum of Natural History Library

Volume: no. 3764

27, [1] p. : 26 cm

Troglobitic cavefishes of the genus Typhleotris, endemic to coastal southwestern Madagascar, are taxonomically reviewed and a new darkly pigmented species, Typhleotris mararybe, is described from an isolated karst sinkhole on the coastal plain below the Mahafaly Plateau. The new species, known only from Grotte de Vitane (Vitany) near the town of Itampolo, is unique among blind cavefishes in being uniformly darkly pigmented, rather than fully depigmented or exceptionally light in coloration. In addition to its dark coloration (vs. depigmented, translucent white body in congeners), the new species can be distinguished from its two congeners, Typhleotris madagascariensis and T. pauliani, by the sculpted, bony (vs. fleshy) appearance of its head with strongly protruding lateral ethmoid, sphenotic, and pterotic bones, and an elevated vertebral count

Caption title

"December 11, 2012."

Includes bibliographical references (p. 26-[28])

Abstract: Troglobitic cavefishes of the genus Typhleotris, endemic to coastal southwestern Madagascar, are taxonomically reviewed and a new darkly pigmented species, Typhleotris mararybe, is described from an isolated karst sinkhole on the coastal plain below the Mahafaly Plateau. The new species, known only from Grotte de Vitane (Vitany) near the town of Itampolo, is unique among blind cavefishes in being uniformly darkly pigmented, rather than fully depigmented or exceptionally light in coloration. In addition to its dark coloration (vs. depigmented, translucent white body in congeners), the new species can be distinguished from its two congeners, Typhleotris madagascariensis and T. pauliani, by the sculpted, bony (vs. fleshy) appearance of its head with strongly protruding lateral ethmoid, sphenotic, and pterotic bones, and an elevated vertebral count.