Elasmobranchi (squali e razze) (sharks and rays) >
Rajiformes (Skates and rays) >
Anacanthobatidae (Smooth skates)
Etymology: bulbicauda: Name from Latin ‘bulbus’ for swelling and ‘cauda’ for tail or appendage, with reference to the flattened expansion of the tail near its tip.
More on authors: Last & Séret.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino demersale; distribuzione batimetrica 150 - 1125 m (Ref. 75174). Tropical; 5°S - 27°S, 111°E - 134°E (Ref. 75174)
Indo-West Pacific: Australia (Shark Bay) and eastern Indonesia (Refs. 75174, 114953).
Dimensione / Peso / Età
Maturità: Lm ?  range ? - 43 cm
Max length : 43.3 cm TL maschio/sesso non determinato; (Ref. 75174); 56.0 cm TL (female)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
This species is distinguished by the following combination of characters: moderate-sized disc, its width at anterior orbit 5.2-7.8 times mouth width; moderately elongate to short tail, its postcloacal length 79-170% of disc length; relatively large eyes with orbit diameter 4.7-8.8 in horizontal snout and 6.7-10.6 in head lengths, respectively; distal portion of tail expanded laterally in specimens exceeding about 28 cm TL (130 mm DW), width of tail near tip 1.3-2.2 times tail width at its midlength; pectoral-fin radials 66-71; moderate-sized pelvic fins, anterior lobe 12.1-18.1% TL; anterior pelvic-fin lobe rather broad-based, width 1.7-3.2 in distance between pelvic-fin origins; caudal fin rudimentary; tooth rows 20-28, in each jaw of adults; with teeth of adult males with greatly elongated conical cusps; 25-31 abdominal vertebral centra; 148-171 total centra; dorsal surface pale pinkish brown, ventral surface uniformly pale (Ref. 75174).
Body shape (shape guide): other.
Found on outer continental shelf and upper slope. Presumably feeds on small fishes and invertebrates. Males reaches maturity at ca. 43 cm TL; smallest neonatal juvenile 13 cm TL (Ref. 114953)
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Last, P.R. and B. Séret, 2008. Three new legskates of the genus Sinobatis (Rajoidei: Anacanthobatidae) from the Indo-West Pacific. Zootaxa 1671:33-58. (Ref. 75174)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Temperatura preferita (Fonte Biblio.
123201): 7.8 - 14.6, mean 11.1 °C (based on 40 cells).
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.8 ±0.6 se; based on size and trophs of closest relatives
Vulnerabilità della pesca (Ref.
59153): Moderate vulnerability (42 of 100).
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