Praealticus semicrenatus (Chapman, 1951)
Lembeh rockskipper

Family:  Blenniidae (Combtooth blennies), subfamily: Salariinae
Max. size:  6 cm TL (male/unsexed)
Environment:  demersal; marine
Distribution:  Western Central Pacific: Indonesia.
Diagnosis:  Dorsal spines (total): 13-13; Dorsal soft rays (total): 18-19; Anal spines: 2-2; Anal soft rays: 19-20. Color in life unknown. Preserved specimen with alternating light and dark bands below eye, dark blotch behind eye and on upper operculum, and around 7-8 bifurcate dark bars on body. Dorsal fin deeply notched; pectoral rays typically 15; segmented caudal rays typically 13-14, middle 6-7 unbranched; pinnately branched supraorbital tentacle; nape cirri absent; posterior rim of anterior nostril with small cirrus (typically unbranched); upper lip margin laterally crenulate; lower lip margin smooth; male with occipital crest; last dorsal ray and caudal peduncle connected by membrane; elongate body, depth at anal-fin origin ca. 6.6-8.1 in SL. Maximum length 6 cm TL (Ref. 90102).
Biology:  Adults occur in rocky shores (Ref. 90102). 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: 01 May 2013 Ref. (130435)
Threat to humans:  harmless


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