Sand Goby

Body moderately elongate, anteriorly robust with slender caudal peduncle. Scales present only in lateral axillary patch behind root of pectoralfin, mostly contiguous but not fully imbricate. Males with first dorsal fin rays to origin of second dorsal fin when depressed, rear tip of second dorsal and anal fin to not more than half distance to upper and lower origins of caudal fin, respectively. Pectoral fin extends posteriorly to below rear end of first dorsal fin.

Vertebrae: 30

P. montenegrensis lives in the slow current shallows of the Moracă River and in pools remaining in gravel pits after river flooding. The substratum is like gravel, covered with fine sediment and overgrown by dense filamentous algae, within which gobies are concealed (Ref. 75173).