Arrowtooth Fangblenny

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).

Oviparous, distinct pairing (Ref. 205).

Dorsal spines (total): 10; Dorsal soft rays (total): 43 - 44; Analspines: 2; Analsoft rays: 40

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).

Plagiotremus iosodon is a species of combtooth blenny found in the western central Pacific ocean in the Philippines.