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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Redescription of Squalus acutipinnis Regan, 1908, a Valid Species of Spiny Dogfish from Southern Africa (Chondrichthyes: Squaliformes: Squalidae)

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Author(s):
Viana, Sarah T. de F. [1] ; de Carvalho, Marcelo R. [1]
Total Authors: 2
Affiliation:
[1] Univ Sao Paulo, Inst Biociencias, Dept Zool, Lab Ictiol, Rua Matao, Travessa 14, 101 Cidade Univ, BR-05508900 Sao Paulo, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Copeia; v. 104, n. 2, p. 539-553, JUL 2016.
Web of Science Citations: 7
Abstract

The Bluntnose spiny dogfish Squalus acutipinnis Regan, 1908 is redescribed based on the re-examination of its type specimens and non-type material from Southern Africa. The taxonomic confusion concerning its validity is mainly related to its heterogeneous type series. Its taxonomic status is clarified as a valid species endemic to the Southwestern Indian Ocean when compared to congeners from the region and other valid species with which it has been placed in synonymy. Squalus acutipinnis can be distinguished from all species of the `'megalops-cubensis group'' by fewer total, precaudal, and monospondylous vertebrae (except from Squalus megalops, Squalus brevirostris, and Squalus crassispinus). Squalus acutipinnis is clearly distinct from Squalus megalops from Southern Australia and the Japanese S. brevirostris through characters of pectoral fin and external measurements. The South African species differs from S. crassispinus by having more slender first and second dorsal-fin spines. Squalus acutipinnis is also easily distinguished from the regional congeners S. acanthias, S. blainvillei, and S. mitsukurii by having lanceolate dermal denticles (vs. non- lanceolate unicuspid denticles in S. acanthias, and non-lanceolate tricuspid denticles in S. blainvillei and S. mitsukurii). (AU)

FAPESP's process: 11/18861-7 - Taxonomic and morphological revision of the family Squalidae Blainville, 1816 (Elasmobranchii: Chondrichthyes: Squaliformes)
Grantee:Sarah Tházia Viana de Figueirêdo
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 13/11621-6 - Taxonomic analysis of the species of the family Squalidae Blainvillei, 1816 (Elasmobranchii: Chondrichthyes: Squaliformes) held at the ichthyology collection of the Natural History Museum (NHM)
Grantee:Sarah Tházia Viana de Figueirêdo
Support Opportunities: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 12/05391-5 - Molecular evolution of regulatory regions of HOX genes associated with the morphology of fish fins, with special emphasis on Chondrichthyes
Grantee:Marcelo Rodrigues de Carvalho
Support Opportunities: Regular Research Grants
FAPESP's process: 12/09877-0 - Comparative analysis of the morphology of the feeding apparatus in Myliobatiform rays (Chondrichthyes: Batoidea)
Grantee:Marcelo Rodrigues de Carvalho
Support Opportunities: Regular Research Grants