Teleostei (teleosts) >
Ophidiiformes (Cusk eels) >
Bythitidae (Livebearing brotulas)
Etymology: Tuamotuichthys: Derived from the name of the type locality, Tuamotu Archipelago and the Greek ichthys (fish), Tuamotu fish; marshallensis: Named for its type locality, the Marshall Islands.
More on authors: Nielsen, Schwarzhans, Møller & Randall.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathypelagic; depth range 46 - 536 m (Ref. 57891). Deep-water
Distribution
Territories | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Western Pacific: Marshall Islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.0 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 78 - 81; Anal soft rays: 62; Vertebrae: 47 - 49. Tuamotuichthys marshallensisdiffers from T. bispinosus in the following characters: downward-directed part of the opercular spine hidden (vs. free); precaudal vertebrae 11 ( vs. 13); dorsal fin origin above vertebra no. 5 (vs. no. 8); hypobranchial rakers of anterior gill arch developed as one large or five smaller plates provided with small spines (vs. hypobranchial without rakers or plates); soft interorbital 5.8-6.3 % SL (vs. 3.8 % SL); maximum head depth 20.0–-1.5 % SL (vs. 13.5 % SL); body depth at origin of anal fin 18.5-20.5 % SL (vs. 14.5 % SL); head pores present on occiput and upper preoperculum (vs. absent); interorbital and occipital head pores present (vs. absent); no scales on top of head (vs. scales present); dorsal rim of otolith high (vs. rim flat) (Ref. 57891).
Body shape (shape guide): elongated.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nielsen, J.G., W. Schwarzhans, P.R. Møller and J.E. Randall, 2006. Tuamotuichthys marshallensis, a new species of fish (Ophidiiformes, Bythitidae) from the Marshall Islands. Steenstrupia 29(2):169-173. (Ref. 57891)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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