Dermatopsis hoesei Møller & Schwarzhans, 2006
Hoese's mudbrotula
Hoese's mudbrotula
Dermatopsis hoesei
photo by P.R. Møller & W. Schwarzhans

Family:  Dinematichthyidae (Viviparous brotula)
Max. size:  4 cm SL (male/unsexed); 4.8 cm SL (female)
Environment:  reef-associated; marine; depth range 0 - 4 m
Distribution:  Western Pacific: SE Australia, south of the Great Barrier Reef, chiefly along the shores of New South Wales.
Diagnosis:  Dorsal soft rays (total): 67-77; Anal soft rays: 46-53; Vertebrae: 40-43. The species is characterized by the following: vertebrae 11-14 + 27-31 = 40-43, dorsal fin rays 67-77, anal fin rays 46-53; no scales on the head and body; posterior nostril large, about half size of eye; lower preopercular pore large, about size of posterior nostril or larger; weak spine on maxilla positioned behind rear tip of eye; single pair of pseudoclaspers curved, expanded and paddle-like, longer than penis, without fleshy appendices; otolith with pointed posterior tip and concavity above and massive postdorsal angle, otolith length to height ratio 1.9-2.0, sulcus with divided colliculi (Ref. 57886).
Biology:  Occurs along rocky shores at shallow depths. A female specimen (AMS 15330-037, 42 mm SL), contained 3 embryos, 11-16 mm SL. The species is pale except for some weak pigmentation on top of head (Ref. 57886).
IUCN Red List Status: Least Concern (LC); Date assessed: 16 August 2019 Ref. (130435)
Threat to humans:  harmless
Country info:  Type locality, Bitangabee Bay southern headland, New South Wales, AMS I.28732-022 (holotype of Dermatopsis hoesei, 35 mm SL, male). Known from SE Australia, south of the Great Barrier Reef, chiefly along the shores of New South Wales between the latitudes 29°S and 37°S (Ref. 57886).


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