Sicklefin weasel shark
📖 Overview
A small, relatively common inshore and offshore shark of tropical continental seas . Feeds mainly on cephalopods, particularly octopi but also takes crustaceans and cephalopods . Viviparous . Taken regularly in inshore artisanal fisheries, commonly caught by inshore gillnet, bottom trawl and, to a lesser extent, longline fisheries. Utilized for human consumption . Offal used for fishmeal .
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 0; Anal spines: 0. Australian specimens with dark-tipped fins; tooth counts 28-34/43-54; total vertebral counts 111 to 118 . Indonesian, Singapore and Thailand specimens with light-tipped fins; tooth counts 25-32/37-43; total vertebral counts 137 to 150 . Grey-brown above, lighter below, dorsal fins with white tips and posterior margins, sometimes with spots on sides of body .: elongated.
🌀 Behaviour
Behavioural data for Sicklefin weasel shark is currently being reviewed.
🦐 Diet
Diet information for Sicklefin weasel shark is currently being compiled.
🥚 Reproduction
Viviparous, with a yolk-sac placenta; 4 to 14 fetuses in a litter ; 2-4 pups after a gestation period of about 6 months; born at about 45-47 cm TL . Size of full-term fetuses (detached umbilical cords and placentae) ranges from 23.7 to 25.6 cm . Distinct pairing with embrace .
🌍 Habitat & Distribution
Marine; demersal. Tropical; 22°C - 28°C ; 28°N - 30°S West Pacific: southern India and Sri Lanka; China to Indonesia (Ref.
🌿 Ecology
cephalopods, particularly octopi (Ref
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Hemigaleus machlani | Herre | 1929 | Heterotypic |
| Negogaleus brachugnathus | Chu | 1960 | Synonym |
| Negogaleus brachygnathus | Chu | 1960 | Heterotypic |
| Negogaleus microstoma | Bleeker | 1852 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 14 records indexed .
👥 Community & Contribute
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