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Hexanchiformes (Frill and cow sharks) >
Chlamydoselachidae (Frilled sharks)
Etymology: Chlamydoselachus: chlamydos (Gr.), cloak or mantle, referring to first pair of gill slits that fit like a cloak or frill around throat; selachos (Gr.), a cartilaginous fish (i.e., shark or ray). (See ETYFish); africana: Named for the Marine and Coastal Management research vessel Africana (Cape Town, South Africa), from which a paratype was collected, for the “excellent” research surveys it has conducted over the past several decades. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي موجوداتی که در محدوده وسیعی از آبهای آزاد از نزدیک بستر و یا روی کف بستر، در قسمت های میان آبی تا سطح آب و در برخی گونه ها با قابلیت پرواز، زندگی و تغذیه می کنند.; تغييرات عمق 300 - 1400 m (Ref. 81930). Tropical; 12°S - 27°S, 13°E - 16°E
Southeastern Atlantic: Angola to Namibia (Ref. 81930).
Size / Weight / سن
Maturity: Lm ?  range ? - ? cm
Max length : 99.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 81930); 117.0 cm TL (female)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
An external morphologically similar looking, smaller-sized Chlamydoselachus (to at least
1170 mm TL) with a proportionally long head length 17.3–17.9% TL, prepectoral length 15.1–17.7% TL, predorsal fin length 62.6–64.5% TL, head height 6.2–8.6% TL and width 6.6–8.9% TL, broad interorbital width (5.7–6.4% TL) and internarial width (3.9–4.8% TL), mouth broad (6.0–8.1% TL), gill openings long, analcaudal
fin space (0.2–1.3% TL), pectoral fin length (8.8–9.6% TL), pelvic fin length (11.6–15.4% TL), meannumber of upper tooth rows (x = 28.8), pectoral mesopterygial radial counts (7), metapterygial radial counts (8), anal fin radials (30), total vertebral counts (147), MP vertebral count (18), DP count (76), DC count (52), MP/DP transition just posterior to the pelvic fins, spiral intestinal valve counts 26–28 (Ref. 81930).
Life cycle and mating behavior
Maturities | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)
Ebert, D.A. and L.J.V. Compagno, 2009. Chlamydoselachus africana, a new species of frilled shark from southern Africa (Chondrichthyes, Hexanchiformes, Chlamydoselachidae). Zootaxa 2173:1-18. (Ref. 81930)
وضعيت در فهرست قرمز IUCN (Ref. 130435)
خطر برای انسان ها
Harmless
استفاده انسانی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0156 [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).
Trophic level (Ref.
69278): 4.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (70 of 100).