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Scombriformes (Mackerels) >
Chiasmodontidae (Snaketooth fishes)
Etymology: Pseudoscopelus: Greek, pseudes = false + Greek, skopelos = a lantern fish (Ref. 45335). Lütken did not recognize the presence of photophores on the body, confusing them with pores, but referred to a genus of lanternfish (Scopelus now Myctophum) when he named the genus (Ref. 85782); bothrorrhinos: Name derived from the Greek 'bothros' (trench or pit) and 'rhinos' (nose or snout), in reference to the concave tip of the snout.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin bathypélagique; profondeur 0 - 1200 m (Ref. 75982). Tropical
Indo-Pacific: off the Comoros Islands, Indonesia, Papua New Guinea and off Gilbert Islands.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 5.5 cm SL mâle / non sexé; (Ref. 75982)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 7; Rayons mous dorsaux (Total) : 22 - 24; Vertèbres: 35 - 36. Distinguished from all other species of Pseudoscopelus by the possession of longitudinal preopercular photophores, extending dorsally to the middle of the preopercle. Differs further from all congeners, except Pseudoscopelus scutatus, by the following characters: concave snout; presence of supraventral-fin photophores; absence of pectoral-fin photophores, pectoral-fin axillary photophores, ventral-fin photophores and ventral-fin axillary photophores; preventral-fin photophores and postventral-fin photophores continuous; and distal radials of the first dorsal fin developed on a plate-like structure (Ref. 75982).
Body shape (shape guide): elongated.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Melo, M.R.S., H.J. Walker Jr. and C. Klepadlo, 2007. Two new species of Pseudoscopelus (Teleostei: Chiasmodontidae), with a new diagnosis for the genus. Zootaxa 1605:33-46. (Ref. 75982)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Utilisations par l'homme
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Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.4 ±0.2 se; based on size and trophs of closest relatives |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |