Ditrema jordani Franz, 1910

Family:  Embiotocidae (Surfperches)
Max. size:  20.83 cm SL (male/unsexed)
Environment:  demersal; marine
Distribution:  Northwest Pacific: Japan.
Diagnosis:  Dorsal spines (total): 9-10; Dorsal soft rays (total): 19-22; Anal soft rays: 25-29; Vertebrae: 35-40. This species is distinguished by the following characters: D 9-10 (mode 9) spines; 20-24 (mode 21) scales below lateral line; posterior end of dorsal-fin base before the anal-fin base; body coppery-red when fresh; anterior suborbital area with dark rounded marking margined with white lines, or broad dark inverse trapezoid marking; preopercle with dark spot at posteroventral corner, dark line along posterior margin; spinous portion of dorsal fin often with longitudinal black stripe on lower half; faint longitudinal dark line along anal-fin base; pelvic-fin base lacking a distinct black spot anteriorly (Ref. 76763).
Biology:  Adults inhabit rocky shores among Sargassum (Ref. 76763). Viviparous, female carries the developing young (Ref. 205).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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