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Perciformes/Scorpaenoidei (Scorpionfishes) >
Aploactinidae (Velvetfishes)
Etymology: Cocotropus: Greek, kokkos = berry, seed + Greek, tropsis, tropo = turning (Ref. 45335); possi: Named for Dr. Stuart G. Poss, in recognition of his outstanding contributions to aploactinid systematics.
Eponymy: Dr Stuart G Poss is an American ichthyologist who is a Research Associate at the California Academy of Sciences. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal. Temperate
Northwest Pacific: Japan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.5 cm SL male/unsexed; (Ref. 75210)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 8; Dorsal soft rays (total): 7 - 8; Anal spines: 2; Anal soft rays: 7; Vertebrae: 26. This species is characterized by the following: D XIII, 8;, pectoral-fin rays 13; vertebrae 26; preopercular spines 5; upper jaw longer than lachrymal; fleshy papillae on posterior portion of maxilla absent; vomerine teeth absent; many well-developed fleshy papillae on ventral surface of lower jaw; first sensory pores on both sides of lower jaw separate; isthmus tip extending to level of between fourth and fifth sensory pores of lower jaw; body mostly uniformly dark brown (Ref. 75210).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Imamura, H. and G. Shinohara, 2008. A new species of Cocotropus (Teleostei: Aploactinidae) from the Ryukyu Islands, Southern Japan. Bull. Natl. Mus. Nat. Sci. Ser. A. Suppl. 2:21-24. (Ref. 75210)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 20.3 - 23.4, mean 21.7 °C (based on 24 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01288 (0.00419 - 0.03963), b=3.03 (2.77 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).