Phenacoscorpius adenensis Norman 1939

Other Names: Toothed No-line Scorpionfish

A Toothed No-line Scorpionfish, Phenacoscorpius adenensis. Source: Australian National Fish Collection, CSIRO. License: All rights reserved

A scorpionfish with a rounded black blotch, smaller than the eye diameter, on the spinous part of the dorsal fin. Some specimens differ in having an elongate black blotch (wider than orbit diameter) and a narrow black band on the basal part of the soft-rayed dorsal fin.

Cite this page as:
Dianne J. Bray, Phenacoscorpius adenensis in Fishes of Australia, accessed 19 Jan 2020,

Phenacoscorpius adenensis Norman 1939

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Recorded in Australia from south of Saumarez Reef, Queensland, to SSE of Cape Everard, Victoria, including the Lord Howe Rise. The species occurs elsewhere in the western Indian Ocean to the southwest Pacific; depth range 139-736 m.


Meristic features: Dorsal fin XII, 8-9; Anal fin III, 5; Pectoral fin 16-18 (middle rays branched in young and adults): Gill rakers 17-21; Pored lateral-line scales 2-8, last pored scale situated from below second to fifth dorsal-fin spine base; Longitudinal scale series about 50 rows.

Pectoral fin 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; 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


Dianne J. Bray

Phenacoscorpius adenensis Norman 1939


Eschmeyer, W.N. 1986. Scorpaenidae. pp. 463-478. In M.M. Smith & P.C. Heemstra (eds) Smiths' sea fishes. Springer-Verlag, Berlin.

Motomura, H., R. Causse & C.D. Struthers. 2012. Phenacoscorpius longilineatus, a new species of deepwater scorpionfish from the southwestern Pacific Ocean and the first records of Phenacoscorpius adenensis from the Pacific Ocean (Teleostei: Scorpaenidae). Species Diversity 17(2): 151-160. PDF

Motomura, H., N. Kanehira & H. Imamura. 2012. Redescription of a poorly known southeastern Pacific scorpionfish (Scorpaenidae), Phenacoscorpius eschmeyeri Parin and Mandrytsa. Species Diversity 17(2): 145-150. PDF

Norman, J. R. 1939. Fishes. The John Murray Expedition 1933-34. Scientific Reports. John Murray Expedition 7: 1–116.

Quick Facts

CAAB Code:37287139

Depth:139-736 m

Habitat:Bottom dweller

Max Size:10 cm TL

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