Xenolumpenus longipterus Shinohara & Yabe, 2009

Family:  Lumpenidae (Eel pricklebacks)
Max. size:  11.49 cm SL (female)
Environment:  benthopelagic; marine; depth range 167 - 300 m
Distribution:  Northwest Pacific: Japan.
Diagnosis:  Dorsal spines (total): 46-48; Anal spines: 2-2; Anal soft rays: 30-30; Vertebrae: 52-54. This species is distinguished by having the following characters: DXLVI-XLVIII; A II,28-30; membrane extremely incised, rays elongate; 11 pectoral-fin rays, including 3 ventralmost rays free from others and the longest ray 36.5-40.2% SL; pelvic fin rays elongate, membrane well-incised, and rays unbranched; 2 mandibular pores; 1 or 2 large black blotches on pectoral fin; black ocellus on caudal fin (Ref. 84251).
Biology:  The specimens have well-developed ovaries containing ca. 1.5 mm diameter eggs, suggesting the spawning of the species occurs in autumn (Ref. 84251).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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