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Gobiidae (Gobies) > Gobiinae
Etymology: Hetereleotris: Greek, heteros = other + The name of a Nile fish, eleotris (Ref. 45335); exilis: Named for its slender body.(Latin 'exilis' meaning slender.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; benthopelagic; depth range ? - 53 m (Ref. 84003). Subtropical
Northwest Pacific: Ryukyu Is., Japan..
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.2 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 7; Dorsal soft rays (total): 12; Anal spines: 1; Anal soft rays: 11; Vertebrae: 27. This species differs from its congeners in having the following set of characters: D VI-I,12; A I,11; pelvic-fin rays I,5 with the innermost (= fifth) segmented pelvic-fin ray unbranched, long, subequal to preceding ray in length; elongated body, depth at anal-fin origin 11.9% of SL; cycloid scales, restricted on posterior part of body (ca. 14-15 longitudinal scales); sensory canals and associated pores on head absent (Ref. 84003).
Body shape (shape guide): fusiform / normal.
The holotype, a mature female with numerous developed eggs in the ovary, was dredged at
53 m depth. No habitat information is known (Ref. 84003).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Shibukawa, K., 2010. Hetereleotris exilis, a new goby (Teleostei, Perciformes, Gobiidae) from the Ryukyu Islands, Japan. Bull. Natl. Mus. Nat. Sci., Ser. A, (Suppl. 4):89-95. (Ref. 84003)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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