Narrowbar reefgoby (Priolepis profunda), first described by Weber, 1909 is a tiny fish in the family Gobiidae (order Gobiiformes). Adults typically reach 3.40 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 45 to 114 metres. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Gobiidae kept in the hobby.
Dorsal spines (total): 7; Dorsal soft rays (total): 10; Anal spines: 1; Anal soft rays: 8. This species is distinguished by the following characters: interorbital broad, with a slight depression between eyes; predorsal scales covered with ctenoid scales to above mideye, and a small naked patch immediately before first dorsal fin; scales absent immediately behind eye before transverse postocular papilla row; prepelvic area partly scaled immediately before pelvic origin, in 2-8 rows; usually no opercular scales, but rarely 1-5 small scales dorsally; no scales on; usually D2 I,10, A I,8, pectoral rays 19; transverse pattern of sensory papilla rows on cheek; pelvic fins connected to form a plate, but no interspinal membrane, the fifth ray with multiple branches, length about 75-80% of length of fourth ray; head and body brown with a distinct large black blotch at anterior base of first dorsal fin, and in life, head and body with very thin blue bands; no bands dorsally on caudal fin; mouth very oblique, jaws form an angle for 55°-60° with body axis .: fusiform / normal.
Behavioural data for Narrowbar reefgoby is currently being reviewed.
Marine; demersal; depth range 45 - 114 m . Tropical West Pacific: Thailand (Gulf of Thailand) Australia (WA to NT, Arafura Sea), Indonesia (New Guinea), and the Philippines (Samar Sea); probably widespread.
The following diseases are known to affect Narrowbar reefgoby.
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