Teleostei (teleosts) >
Acanthuriformes (Surgeonfishes) >
Leiognathidae (Slimys, slipmouths, or ponyfishes) > Gazzinae
Etymology: longicornis: Name from Latin 'longicornis' meaning long horn, referring to the long second dorsal fin spine..
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal. Tropical; 14°N - 7°S, 100°E - 107°E
Western Pacific: Gulf of Thailand and Jakarta, Indonesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.9 cm SL male/unsexed; (Ref. 74926)
Dorsal spines (total): 8; Dorsal soft rays (total): 16 - 17; Anal spines: 3; Anal soft rays: 14. This species is characterized by the following features: Cheek and breast naked; fully scaled dorsolateral body surface; anteroventral profile of the lower jaw usually strongly concave; upper oral valve with minute, sparse, slender projections; bicuspid or tricuspid preorbital spine, expanded distally; elongated second dorsal fin spine, reaching beyond base of fifth soft ray when fin is appressed; second anal fin spine not elongated, not extending to the base of fifth soft ray when fin appressed (Ref. 74926).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Kimura, S., R. Kimura and K. Ikejima, 2008. Revision of the genus Nuchequula with descriptions of three new species (Perciformes: Leiognathidae). Ichthyol. Res. 55:22-42. (Ref. 74926)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 28.4 - 29.2, mean 28.9 °C (based on 156 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01862 (0.00823 - 0.04215), b=2.97 (2.78 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.9 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).