Chaenodraco wilsoni Regan, 1914
Spiny icefish
Chaenodraco wilsoni
photo by Busse, K.

 Family:  Channichthyidae (Crocodile icefishes)
 Max. size:  43 cm TL (male/unsexed)
 Environment:  benthopelagic; depth range 200 - 800 m
 Distribution:  Southern Ocean: Circum-Antarctic on Antarctic continental shelf. Northernmost records from vicinity of South Orkney Islands and Antarctic Peninsula.
 Diagnosis:  Dorsal spines (total): 5-8; Dorsal soft rays (total): 38-42; Anal spines: 0-0; Anal soft rays: 32-36. Supraorbital ridge not crenulated. Middle lateral line restricted to caudal peduncle; lower lateral line originating from in front of anal-fin origin to above sixth anal ray. Maxilla extending to below anterior third of eye. Opercular bones with 2 upper and 3 lower spines. Preopercular-mandibular canal not joined to temporal canal. Pelvic fins extending beyond anal-fin origin. In life, pale grey, whitish ventrally. Differentiated by the dorsoventrally oval shape; the prominent distally rounded rostrum, pseudo-rostrum and pseudo-antirostrum; the clearly defined excisura ostii and pseudo-excisura ostii; the acutely constricted collum; and the well developed colliculli. Ontogeny: The excisura ostii and the pseudo-excisura ostii become deeper and the crista inferior becomes less distinct with an increase in the fish size.
 Biology:  Common in shallower waters of the continental shelf, especially on banks less than 250 m deep in areas where local upwelling increase food supply (Ref. 6390). Postlarvae and pelagic juveniles are also found in the upper 100 m (Ref. 5200). Food consists of fishes and krill. Spawn in winter (Ref. 6390). Larval pelagic phase is long (Ref. 28915). Prey to penguins and seals (Ref. 6390). Utilized as a food fish (Ref. 5200).
 IUCN Red List Status: Not Evaluated  (Ref. 96402)
 Threat to humans:  harmless
 Country info:   
 

 Entered by: Luna, Susan M. - 17.10.90
 Modified by: Torres, Armi G. - 25.05.17
 Checked by: Luna, Susan M. - 12.04.99

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