Scyliorhinus cabofriensis

SOARES, GOMES & DE CARVALHO, 2016



Classification: Elasmobranchii Carcharhiniformes Scyliorhinidae

Reference of the original description
SOARES, K.D.A. & GOMES, U.L. & DE CARVALHO, M.R. (2016)
Taxonomic review of catsharks of the Scyliorhinus haeckelii group, with the description of a new species (Chondrichthyes: Carcharhiniformes: Scyliorhinidae). Zootaxa, 4066 (5): 501–534

Types
Scyliorhinus cabofriensis
Holotype: MNRJ: 40730; Paratype: MCP: 47874; MCP: 47875; MCP: 47876; MNRJ: 40731; MNRJ: 40732; MNRJ: 40733; MZUSP: 37284; UERJ: 2042; UERJ: 2231.2; UERJ: 2231.4;


Description :


Citation: Scyliorhinus cabofriensis SOARES, GOMES & DE CARVALHO, 2016: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 04/2017

No image available.
Please send your images of "Scyliorhinus cabofriensis" to
info@shark-references.com
Short Description
Original Diagnosis after SOARES, GOMES & DE CARVALHO, 2016 [23708]: A southwestern Atlantic Scyliorhinus species distinguished by its color pattern composed of randomly and asymmetrically distributed black and white spots of varied sizes (but predominantly small) (vs. spots predominantly within saddles and with approximate bilateral symmetry in S. haeckelii and in S. ugoi); saddles not well defined and without sharp median projections (vs. well-defined saddles in S. haeckelii and saddles with sharp median projections in S. ugoi); claspers with a well-developed groove on the terminal portion of the ventral terminal cartilage (vs. lacking groove or an undeveloped groove in S. haeckelii and S. ugoi); envelope absent and exorhipidion poorly developed (vs. envelope present and exorhipidion developed in S. haeckelii); and neurocranium with a proportionately broader basal plate (vs. narrow basal plate in S. haeckelii and in S. ugoi). The following combination of characters, although less conspicuous, also distinguishes these species: snout rounded and small, mean of preoral length 5% TL (vs. mean 4.5% TL in S. haeckelii); head moderately broad and depressed, its length 19.7–20.8% TL (vs. 17.5–19.2% TL in S. haeckelii); first dorsal fin triangular, never subrectangular (vs. sometimes subrectangular in S. haeckelii); interdorsal space two times dorsal-caudal space (vs. 1.2–2 times in S. haeckelii and 2.1–2.5 in S. ugoi); ventral terminal 2 cartilage slender and positioned on ventral terminal cartilage, its length 1.5 times length of ventral terminal cartilage (vs. 1.8 times in S. haeckelii); components of clasper proportionately larger than in S. haeckelii; somewhat small sized adult males, at about 393 mm TL, and adult females, at least 420 mm TL (vs. 445 mm and 500 mm TL, respectively, in S. ugoi).

Distribution
only off the northeastern coast of the state of Rio de Janeiro, Brazil [23708]

Size / Weight / Age
Males: 308–468 mm (n = 8); females: 276–450 mm (n = 16) [23708]

Habitat
marine: 536 m in dept

Dentition
[23708]