Beliops batanensis Smith-Vaniz & Johnson, 1990
Batan longfin
Batan longfin
photo by The Fish Database of Taiwan

Family:  Plesiopidae (Roundheads), subfamily: Acanthoclininae
Max. size:  2.4 cm TL (male/unsexed)
Environment:  demersal; marine; depth range 9 - 12 m
Distribution:  Western Central Pacific: known only from northern Philippines. Possibly occurring in Taiwan.
Diagnosis:  Dorsal spines (total): 20-20; Dorsal soft rays (total): 2-2; Anal spines: 11-11; Anal soft rays: 2-2; Vertebrae: 27-27. Posterior body scales with membranous flaps and ctenii, if present, very reduced, short and robust dorsal-and anal-fin spines, and the interradial membranes of the spinous dorsal fin weakly incised. Description: Characterized by mostly black color except white mid-dorsal band on head from upper lip to dorsal-fin origin and narrow white margins on dorsal, anal and caudal fins; two lateral lines, dorsal lateral line 33-35 tubed scales, lower lateral line 17-20 tubes scales; sensory on dentary 4; without papillae present on head; depth of body at origin of dorsal fin 4.8-5.0 in SL (Ref. 90102).
Biology:  Eggs are guarded by the male parent (Ref. 205).
IUCN Red List Status: Data deficient (DD); Date assessed: 01 March 2017 Ref. (130435)
Threat to humans:  harmless
Country info:  Recorded from Batanes. Also Ref. 90102.


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