Phenacoscorpius adenensis Norman, 1939
Toothed no-line scorpionfish

Family:  Scorpaenidae (Scorpionfishes or rockfishes), subfamily: Scorpaeninae
Max. size:  10 cm TL (male/unsexed)
Environment:  bathydemersal; marine; depth range 139 - 736 m
Distribution:  Indo-West Pacific.
Diagnosis:  Dorsal spines (total): 12-12; Dorsal soft rays (total): 8-9; Anal spines: 3-3; Anal soft rays: 5-5. This species is distinguished by the following set of characters: pectoral-fin rays 16-18 (mode 17) with middle rays branched in young and adults; pored lateral-line scales 2-8 (mode 3) with last pored scale situated from below second to fifth dorsal-fin spine base; longitudinal scale series about 50 rows; gill rakers 17-21 (mode 19); presence of palatine teeth; distinct nuchal and parietal spines; suborbital spines 3-5 (mode 5); the nape and anterior part of body moderately arched throughout life; relatively short post-nuchal-spine length, 3.2-9.5% (mean 5.7%) of SL; relatively long caudal-fin length, 23.4-30.7% (mean 26.7%) of SL; black spots on posterior half of caudal peduncle 5-37 (mode 8); body of preserved specimens with 4 distinct saddles (Ref. 92845).
Biology:  Rare species.
IUCN Red List Status: Least Concern (LC); Date assessed: 03 March 2015 Ref. (130435)
Threat to humans:  harmless


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