Canthigaster sanctaehelenae (Günther, 1870)
St. Helena Sharpnose Pufferfish
Canthigaster sanctaehelenae
photo by Wirtz, P.

Family:  Tetraodontidae (Puffers), subfamily: Canthigasterinae
Max. size:  6.71 cm SL (male/unsexed)
Environment:  reef-associated; marine; depth range 0 - 50 m
Distribution:  Southeast Atlantic: known only from St. Helena and Ascension islands.
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 9-10; Anal spines: 0-0; Anal soft rays: 8-9. Distinguished from all Atlantic Canthigaster species (except C. supramacula) by the absence of longitudinal dark stripes on the side of the body or caudal peduncle. Distinguished from C. supramacula by the absence of a conspicuous dark spot on the dorsum (Ref. 43205).
Biology:  Occurs in tide pools and to depths of up to 45 m (Ref. 43205). Also found in rocky areas to at least 50 m depth; adults often in pairs (Ref. 86997).
IUCN Red List Status: Endangered (EN); Date assessed: 08 June 2011 (B2ab(iii)) Ref. (130435)
Threat to humans:  harmless


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