Diancistrus machidai Schwarzhans, Møller & Nielsen, 2005
Machida's coralbrotula
Diancistrus machidai
photo by W. Schwarzhans et al.

Family:  Bythitidae (Livebearing brotulas), subfamily: Brosmophycinae
Max. size:  6 cm SL (male/unsexed); 4.7 cm SL (female)
Environment:  reef-associated; depth range 2 - 20 m
Distribution:  Western Pacific: Philippines to Indonesia.
Diagnosis:  Dorsal soft rays (total): 66-77; Anal soft rays: 50-64; Vertebrae: 40-43. The species is characterized by having Vertebrae 11+29-31 (32)=40-42 (43), dorsal fin rays 66-77, anal fin rays 50-64; large eyes (2.4-3.3% SL), D/V 6-7; outer pseudoclasper long, thick, with almost straight hook-like extension in ventral view; inner pseudoclasper anteriorly joined to outer pseudoclasper, broad, its supporter extended as distinct thorn to nearly length of extension of outer pseudoclasper; moderately wide scale patch on cheek with 5-6 scale rows on upper cheek, 0-2 scales on operculum above opercular spine; head is slender, broad; otolith length to height ratio 2.0-2.1; sulcus short, ratio otolith length to sulcus length 2.3-2.5 (Ref. 57884). Description: Characterized by depth of body at anal fin origin 14.4-20.5 (mean=17.6) % SL (Ref. 90102).
Biology:  Solitary inhabitant of coral reef crevices, cryptic (Ref 90102).
IUCN Red List Status: Least Concern (LC); Date assessed: 15 August 2019 Ref. (123251)
Threat to humans:  harmless
Country info:   

Entered by: Capuli, Estelita Emily - 19.02.07
Modified by: Valdestamon, Roxanne Rei - 19.02.13

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