Java Rockskipper

Color in life unknown. Preserved specimen with vertically elongate blotch behind eye; ca. 10 bifurcate bars on body and dark spots on anterior body. Dorsal fin deeply notched; segmented caudal rays typically 13-14, middle 2-8 (typically 5-8)branched; supraorbital tentacle pinnately branched; nape cirri absent; posterior rim of anterior nostril with small cirrus (typically unbranched); upper lip margin laterally crenulate; males with occipital crest; last dorsal ray and caudal peduncle connected by membrane; body elongate, depth at anal-fin origin ca. 7.0 in SL. Maximum length, 6 cm TL (Ref. 90102).

Oviparous, distinct pairing (Ref. 205).

Dorsal spines (total): 13; Dorsal soft rays (total): 17 - 19; Analspines: 2; Analsoft rays: 19 - 21

Adults inhabit 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).

Praealticus oortii is a species of combtooth blenny found in the eastern Indian Ocean from the Andaman Sea to Timor in the western Pacific. The identity of the person honoured by the specific name of this blenny was not specified but it is thought to be most likely to be the draftsman and illustrator Peter van Oort (1804-1834), who, as part of the Physics Commission for the Dutch East Indies, explored Java which is the type locality of this species.