Dipturus acrobelus

LAST, WHITE & POGONOSKI, 2008


Deepwater skate
Classification: Elasmobranchii Rajiformes Rajidae

Reference of the original description
LAST, P.R. & WHITE, W.T. & POGONOSKI, J.J. (2008)
New skates of the genus Dipturus (Rajoidei: Rajidae) from Australian Seas. CSIRO Marine and Atmospheric Research Paper, 21: 9–52

Image of the original description

Dipturus acrobelus sp. nov., adolescent male holotype (CSIRO H 226–01, 840 mm TL, preserved): A, dorsal surface; B, ventral surface. In: LAST, P.R. & WHITE, W.T. & POGONOSKI, J.J. 2008 New skates of the genus Dipturus (Rajoidei: Rajidae) from Australian Seas. CSIRO Marine and Atmospheric Research Paper, 21: 9-52



Description :


Citation: Dipturus acrobelus LAST, WHITE & POGONOSKI, 2008: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 11/2018

Please send your images of "Dipturus acrobelus" to info@shark-references.com

Dorsal surface of Dipturus acrobelus sp. nov.: primary juvenile paratype (CSIRO H 789–03, female 214 mm TL, preserved). In: LAST, P.R. & WHITE, W.T. & POGONOSKI, J.J. 2008 New skates of the genus Dipturus (Rajoidei: Rajidae) from Australian Seas. CSIRO Marine and Atmospheric Research Paper, 21: 9-52
Common names
eng Deepwater skate

Short Description
Original Diagnose of LAST, WHITE & POGONOSKI, 2008 [3309]: A large species of Dipturus (to 137 cm TL) with the following combination of characters: disc relatively broad with angular to narrowly rounded apices, width 66–71% TL, 1.1–1.2 times its length; snout angle 60–74°; tail length 0.7–1.0 in distance from snout tip to rear of cloaca; tail slender, somewhat rounded in crosssection and slightly expanded near its midlength, width 1.6–1.8 times height at its midlength, 1.4–1.8 times at first dorsal-fin origin; pre-upper jaw length 24–27% TL, 3.0–3.4 times internasal width; ventral head length 35– 38% TL; snout length 5.4–7.0 times interorbital width; orbit diameter 55–92% interorbital width; first dorsalfin height 1.2–2.1 in its base length; distance from first dorsal-fin origin to tail tip 3.0–4.2 times first dorsalfin base length, 2.6–3.5 times caudal-fin length; pelvic fins of medium size; anterior margins of both surfaces of disc of adult males and largest females (>1350 mm TL) with narrow bands of fine denticles; 1–3 nuchal thorns; malar thorn patch very well-developed; tail with 1–3 thorn rows (lateral rows poorly developed) in males, females with additional dorsolateral and occasionally weak ventrolateral thorn rows (up to 7 thorn rows in total); total pectoral radials 83–88; trunk centra 26–31; predorsal centra 78–85; total centra about 130–141; tooth rows in upper jaw 35–41; mainly uniformly pale grey to brownish dorsally; darker brownish or blackish ventrally (often mottled), snout tip darker than rest of snout; upper lip usually blackish bordering tooth band; ventral sensory pores very small, with indistinct dark edges; dorsal and caudal fins, tail tip, margins of pelvic fins, and posterior margins of pectoral fins black in juveniles (to at least 570 mm TL).

Distribution
Indo-West Pacific: Australia. Source: www.gbif.org

Size / Weight / Age
95.0 cm TL (male/unsexed; [3309]); 137.1 cm TL (female)

Habitat
demersal; marine; depth range 446 - 1328 m [3309]