>
Lampriformes (Velifers, tube-eyes and ribbonfishes) >
Radiicephalidae (Tapertails)
Etymology: Radiicephalus: Latin, radius + Greek, kephale = head (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển; Mức độ sâu 570 - ? m (Ref. 58018). Deep-water; 38°N - 40°S, 130°W - 20°E
Eastern Atlantic: off Morocco and the Azores (Ref. 6739) southward to Cape Point, South Africa (Ref. 6551). Eastern Pacific: present in the California Current region (Ref. 36609).
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?  range ? - ? cm
Max length : 76.0 cm TL con đực/không giới tính; (Ref. 4506)
Các tia vây lưng cứng (tổng cộng) : 0; Các vây lưng mềm (tổng cộng) : 152 - 160; Tia cứng vây hậu môn: 0; Tia mềm vây hậu môn: 6 - 7; Động vật có xương sống: 114 - 121. Body and tail silvery in color; dorsal base blackish (Ref. 6551). Branchiostegal rays: 4-6 (Ref. 36609). Pelvic fins absent in adults.
Mesopelagic species (Ref. 6808). Adults feed on lantern-fishes (Myctophidae) and possibly euphausiid crustaceans (Ref. 6739). Oviparous, with planktonic larvae (Ref. 36609). They have the ability to discharge dark brown fluid from the ink-sac when alarmed.
Life cycle and mating behavior
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
Aguiar, A. and J.-C. Quéro, 1990. Trachipteridae. p. 647-649. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 4506)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Các công cụ
Special reports
Download XML
Các nguồn internet
Estimates based on models
Preferred temperature (Ref.
123201): 4.5 - 7, mean 5.8 °C (based on 5 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: 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).
Mức dinh dưỡng (Ref.
69278): 3.9 ±0.63 se; based on food items.
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (50 of 100).