dcsimg
Life » » Animaux » » Vertébrés » » Chondrichthyes » » Rajiformes » Arhynchobatidae »

Brochiraja leviveneta Last & McEachran 2006

Diagnostic Description ( anglais )

fourni par Fishbase
A small species having the following diagnostic characters: long tail, 1.2-1.3 times disc length, 2.1-2.6 times ventral head length, 4-5 times snout length; large orbit, 2.6-3.4 in preorbital snout length; tail base moderately broad, width at pelvic-fin insertions 1.9-2.7 times width at midlength; denticles confined to central disc behind eye; tail thorns in single, median row; single, well-developed preorbital and postorbital thorns; ventral disc and tail naked; rostral thorn bifurcated, pronounced, close to snout tip, distance from snout tip 3-4.3 in preorbital length; calcified rostral shaft long; alar thorns in small patch of long-based, posteromedially directed thorns flanked laterally by patch of much smaller, more posteriorly directed malar thorns; additional malar thorn patch lateral to eye, usually separate from posterior patch; upper surface bluish, ventral surface much darker bluish brown; rows of strongly contrasted, pale-edged pores on ventral surface; nuchal pore band is distinct; total pectoral radials 64-69; predorsal vertebrae 95-100; tooth rows in the upper jaw 32-43 (Ref. 58023).
licence
cc-by-nc
droit d’auteur
FishBase
Recorder
Estelita Emily Capuli
original
visiter la source
site partenaire
Fishbase

Biology ( anglais )

fourni par Fishbase
Male paratype mature at 43.2 cm TL (Ref. 58023).
licence
cc-by-nc
droit d’auteur
FishBase
Recorder
Estelita Emily Capuli
original
visiter la source
site partenaire
Fishbase