Teleostei (teleosts) >
Gobiiformes (Gobies) >
Microdesmidae (Wormfishes) > Ptereleotrinae
Etymology: Ptereleotris: Greek, pteron = wing, fin + The name of a Nile fish, eleotris (Ref. 45335).
Eponymy: Helen Randall née Au is a fellow zoologist and wife of the author Dr John ‘Jack’ Ernest Randall Jr. (Also see Randall) (Ref. 128868), visit book page.
More on author: Randall.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 3 - 60 m (Ref. 9710). Tropical
Western Atlantic: southeastern Florida, USA and throughout the Antilles (Ref. 7251), and Brazil (Ref. 40101).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.0 cm TL male/unsexed; (Ref. 9710)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 22 - 24; Anal spines: 1; Anal soft rays: 21 - 23. Body pale bluish-gray, with lavender overtones. Fins paler, greenish yellow; caudal fins rounded, moderately long. Mouth very oblique. Scales very small, about 145 in lateral series (Ref. 26938).
Body shape (shape guide): elongated.
Found on sandy or coral rubble bottoms (Ref. 9710). Inhabits 'U-shaped' burrows. Often in pairs. Feeds on zooplankton. Hovers head down near burrow (Ref. 9710). Monogamous (Ref. 52884).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Monogamous mating is observed as both obligate and social (Ref. 52884).
Randall, J.E., 1996. Caribbean reef fishes. Third Edition - revised and enlarged. T.F.H. Publications, Inc. Ltd., Hong Kong. 3nd ed. 368 p. (Ref. 13442)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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