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Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: vittacauda: A combination of the Latin vitta (ribbon) and cauda (tail) with reference to the appearance of the tail due to its unusually broad lateral skin folds that terminating near its tip. Vernacular name: Ribbontail Skate (Ref. 89011).
More on authors: Last & Séret.
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển Tầng đáy biển sâu; Mức độ sâu 629 - 973 m (Ref. 89011). Deep-water; 33°S - 35°S
Tasman Sea: known from small section of the West Norfolk Ridge (ca 33º40–34°18' S, 167º 50–168°24’ E) at 629–973 m depth (Ref. 89011).
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 71.9 cm WD con đực/không giới tính; (Ref. 89011)
Short description
Hình thái học | Sinh trắc học
A large species of Brochiraja distinguished by the following combination of characters: long tail, 1.2–1.4 times disc length, 2.3–2.8 times ventral head length, 4.7–5.8 times snout length; orbit moderately large, 2.8–3.1 in preorbital snout length; tail slender but with relatively broad conical base, evenly tapering to mid-length of tail, width at pelvic-fin insertions 2.0–2.5 times width at midlength; anterior lobe of pelvic fin broadly spatulate; central dorsal disc with fine denticles, otherwise naked apart from enlarged, thorn-like denticles around margin of snout and near alar patch in adult males; tail with mediodorsal row of about 36–51 hooked thorns and small spiny denticles concentrated on its dorsolateral surface; single preorbital thorn, 0–1 midorbital thorns, 1–3 postorbital thorns; snout length 2.6–3.7 times distance from snout tip to bifurcate rostral thorn; calcified rostral shaft short; ventral disc and tail naked; alar thorns in a broad patch, flanked by smaller malar thorns; additional separate patch of malar thorns on snout forward of mid-eye; lateral skin fold very broad posteriorly, originating well forward, beside pelvic-fin inner margins in adult male; dorsal surface dark violet, ventral surface brownish blue, darker than dorsal surface; no beard-like patch beneath mouth; rows of faint pale-edged pores on ventral surface; tail tip white; nuchal pore patch distinct; total pectoral radials 76–77; predorsal vertebrae 112–114; 40–44 tooth rows in upper jaw (Ref. 89011).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
Last, P.R. and B. Séret, 2012. Two new softnose skates of the genus Brochiraja (Rajoidei: Arhynchobatidae) from the deepwater slopes and banks of the Norfolk Ridge (South-West Pacific). Zootaxa 3155:47-64. (Ref. 89011)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Thêm thông tin
Age/SizeSự sinh trưởngLength-weightLength-lengthLength-frequenciesSinh trắc họcHình thái họcẤu trùngSự biến động ấu trùngBổ xungSự phong phúBRUVS
Các tài liệu tham khảoNuôi trồng thủy sảnTổng quan nuôi trồng thủy sảnCác giốngDi truyềnElectrophoresesDi sảnCác bệnhChế biếnNutrientsMass conversion
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00273 - 0.01106), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.8 ±0.7 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (42 of 100).
