Entomacrodus thalassinus (Jordan & Seale, 1906)
Sea blenny
Entomacrodus thalassinus
photo by Randall, J.E.

Family:  Blenniidae (Combtooth blennies), subfamily: Salariinae
Max. size:  4 cm SL (male/unsexed)
Environment:  reef-associated; marine; depth range 0 - 5 m
Distribution:  Indo-Pacific: disjunct distribution; Seychelles and Maldives in the Indian Ocean; then from southern Japan and Taiwan to the Line and Tuamotu Archipelago. The valid subspecies Entomacrodus thalassinus longicirrus ranges from Gulf of Thailand to Hong Kong.
Diagnosis:  Dorsal spines (total): 13-13; Dorsal soft rays (total): 13-15; Anal spines: 2-2; Anal soft rays: 15-17
Biology:  Adults are found along surge reef margins. 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).
IUCN Red List Status: Least Concern (LC); Date assessed: 27 March 2009 Ref. (130435)
Threat to humans:  harmless


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