Sulu eelblenny (Congrogadus hierichthys), first described by Jordan & Richardson, 1908 is a medium-sized fish in the family Pseudochromidae (order Perciformes). Adults typically reach 16.00 cm in maximum length. It inhabits marine coastal and open-ocean environments. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Least Concern.
Dorsal spines (total): 1; Dorsal soft rays (total): 58 - 62; Anal spines: 0; Anal soft rays: 49 - 51; Vertebrae: 64 - 67. Gill membranes fused ventrally, free from isthmus. Posterior otic sensory canal pore present. Opercle with a dark ocellated spot. Cephalic sensory canal openings rimmed with black. Dorsal margin of opercle and cheeks patched with scales. : eel-like; Cross section: compressed.
Behavioural data for Sulu eelblenny is currently being reviewed.
Marine; demersal. Tropical known only from the Sulu Sea, Philippines.
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