Eusurculus pistillum Schwarzhans & Møller, 2007
Eusurculus pistillum
photo by W. Schwarzhans & P. R. Møller

Family:  Dinematichthyidae (Viviparous brotula)
Max. size:  4.87 cm SL (male/unsexed); 5.5 cm SL (female)
Environment:  reef-associated; marine; depth range 0 - 9 m
Distribution:  Indo-West Pacific: Australia.
Diagnosis:  Dorsal soft rays (total): 80-92; Anal soft rays: 60-70; Vertebrae: 43-47. This species possess the following distinguishing characters: D 80-92, A 60-70, D/A 25-32, V in D 2.1-2.4; vertebrae (12) 13-14+30-34=43-47, anterior nostril situated 1/3 to 1/3.5 distance from upper lip to aggregate distance to anterior margin of eye; free pseudoclaspers 2 pairs, outer pseudoclasper wing-shaped with broad base and distally widened supporter with indistinct anterior hook (covered by ligament), inner one stalked, with narrow base and distally with large, folded sucker-disk; cheek with 4-6 scale rows on upper part, 2-3 rows on lower; otoliths with distinct ostium and cauda, with colliculi separate or partly fused, otolith length to height is 2.2-2.4, ostial colliculum length to caudal colliculum length is 3-4 (Ref. 76869).
Biology:  Collected from sublittoral area, with rocks, mud, corals and brown algae. It appears to be most common in reef environments, often on outer reefs, and avoid inshore and back reef areas (Ref. 76869).
IUCN Red List Status: Least Concern (LC); Date assessed: 16 August 2019 Ref. (130435)
Threat to humans: 


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