分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
板鰓亜鋼(サメとエイ類) (sharks and rays)
(Ground sharks) > Pentanchidae
Etymology: Apristurus: Greek, a = without + Greek, pristis = saw + Greek, oura = tail (Ref. 45335); ampliceps: Name from Latin 'amplus' for large and 'caput' for head, refers to its large head.
Environment: milieu / climate zone / depth range / distribution range
; 海 深海魚; 深さの範囲 800 - 1503 m (Ref. 76941). Temperate
Southwest Pacific: New Zealand and Australia.
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 85.5 cm TL オス/雌雄の選別がない; (Ref. 76941); 79.6 cm TL (female)
形態学 | 形態計測学
This species has the following characters: upper labial furrows about equal to, or slightly shorter than the lower ones; length of pre-outer nostril 4.5-6.6% TL; semicircular upper jaw; continuous supraorbital sensory canal; first dorsal fin is slightly smaller than second; anal fin is rounded in shape; narrow dermal denticles, leaf-like and sparse in distribution; enlarged dermal denticles absent along the dorsal margin of caudal fin; 8-11 spiral valves in intestine; size at maturity 65.0-75.0 cm TL; uniformly brown or blackish brown body and fins (Ref. 76941).
Claspers of males are short and less than 2.0% TL in specimens less than 52.7 cm TL, which is ranked as maturity stage 1 (immature); 73.3-76.5 cm TL have long but soft claspers (3.9-4.2% TL, maturity stage 2; greater than 78 cm TL have long, well developed and hardened
claspers (3.6-5.6% TL, maturity stage 3). Immature males are less than 52.7 cm TL and for females 37.4 cm TL (maturity stage 1); adolescent in males of 73.3-76.5 cm TL and females of 57.8-65.6 cm TL are (maturity stage 2); and adult in males with greater than 78 cm TL and females greater than 67.8 cm TL (maturity stage 3) (Ref. 76941).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Sasahara, R., K. Sato and K. Nakaya, 2008. A new species of deepwater catshark, Apristurus ampliceps sp. nov., (Chondrichthyes: Carcharhiniformes: Scyliorhinidae), from New Zealand and Australia. In Last, P.R., White, W.T. & Pogonoski, J.J. (eds.): Descriptions of New Australian Chondrichthyans. CSIRO Marine and Atmospheric Research Paper no. 22. (Ref. 76941)
CITES (Ref. 123416)
協力者画像Stamps, Coins Misc.音シガテラ（食中毒の名前）速度泳ぐ 型式カマOtoliths脳視覚
Estimates based on models
Preferred temperature (Ref. 115969
): 3.5 - 6.4, mean 4.6 °C (based on 20 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00316 (0.00148 - 0.00675), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
栄養段階 (Ref. 69278
): 4.0 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref. 120179
): 非常に低い, １４年以上の倍増期間の最小個体群 (Fec assumed to be < 10).
弱み (Ref. 59153
): Moderate to high vulnerability (50 of 100) .