Elasmobranchii (sharks and rays) > Rajiformes
(Skates and rays) > Anacanthobatidae
Etymology: andamanensis: Named for its type locality, the Andaman Sea.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 508 - 518 m (Ref. 117112). Tropical
Eastern Indian Ocean: Andaman Sea, probably more widely distributed in the area..
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 37.9 cm TL male/unsexed; (Ref. 117112); 42.9 cm TL (female)
Morphology | Morphometrics
This small species is distinguished by the following set of characters: a relatively narrow disc, its width at anterior orbit 3.7-4.9 times mouth width; possess a very long snout with slightly bulbous tip and a short, filament; with a moderately elongate tail (postcloacal length 127-157% of disc length); eyes medium-sized, with orbit diameter 6.6-10.3 in horizontal snout and 8.2-12.8 in head lengths respectively; distal portion of tail not expanded laterally; moderately-sized pelvic fins, anterior lobe 14.3-16.1% TL; the anterior pelvic-fin lobe narrow-based, width 2.7-5.0 in distance between pelvic-fin origins; long-based and very low caudal fin; tooth rows in each jaw 23-29; adult males' teeth with short subconical cusps; pectoral-fin radials 66-72; abdominal vertebral centra 26, total centra to caudal fin origin ca. 125-131; colour of dorsal and ventral surfaces both bluish when fresh, with skin on dorsal surface darker and opaque, and almost transparent ventrally (Ref. 117112)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Last, P.R. and S. Bussarawit, 2016. A new legskate, Sinobatis andamanensis (Rajiformes: Anacanthobatidae), from the Andaman Sea (northeastern Indian Ocean). Zootaxa 4168(1):161-170. (Ref. 117112)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 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
Trophic level (Ref. 69278
): 3.7 ±0.6 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (22 of 100) .