Plagiotremus iosodon Smith-Vaniz, 1976
Arrowtooth fangblenny
Plagiotremus iosodon
photo by Smith-Vaniz, W.F.

Family:  Blenniidae (Combtooth blennies), subfamily: Blenniinae
Max. size:  4.5 cm TL (male/unsexed)
Environment:  demersal; marine; depth range 3 - 9 m
Distribution:  Western Central Pacific.
Diagnosis:  Dorsal spines (total): 10-10; Dorsal soft rays (total): 43-44; Anal spines: 2-2; Anal soft rays: 40-40. Color in life unknown. Coloration in preserved specimen a fine peppering of chromatophores on body and a somewhat dark wedge-shaped area of pigments at caudal-fin base. Segmented caudal rays 11; dentary incisors with arrowhead-shaped tips; interorbital pores 4; body very elongate, depth about 12.7 in SL (Ref. 90102).
Biology:  Based on characters common to the family, this species is oviparous. Eggs are demersal and adhesive (Ref. 205), and are attached to the substrate via a filamentous, adhesive pad or pedestal (Ref. 94114). Larvae are planktonic, often found in shallow, coastal waters (Ref. 94114). Only record is of 2 specimens collected from 1919 by dynamite from Jolo Island, Philippines (Ref. 90102).
IUCN Red List Status: Data deficient (DD); Date assessed: 25 March 2009 Ref. (130435)
Threat to humans:  harmless


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