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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 | |||