أشلاق (القروش و الشفانين) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Pentanchidae (Deepwater catsharks)
Etymology: Apristurus: a-, Latin privative, i.e., without; pristis, from pristes (Gr.), sawyer (but here meaning saw); oura (Gr.), tail, referring to absence of saw-toothed crest of enlarged dermal denticles along upper edge of caudal fin as found in the closely related Pristiurus (=Galeus) (See ETYFish); pinguis: Latin for fat, described as having a “stout” body (See ETYFish).
البيئة: الوسط / المنطقة المناخية / نطاق العمق / نطاق التوزيع
البيئة
بحري مياه عميقة; نطاق العمق 200 - 1000 m (Ref. 41248). Deep-water
Northwest Pacific: East China Sea.
الحجم / وزن / العمر
النضج: Lm ?  range ? - ? cm
Max length : 83.5 cm TL ذكر/ مختلط الجنس; (Ref. 101563)
Body stout. Snout length in front of mouth about 1.2 times the distance between nostrils. Long anal fin, rear tip nearly reaching origin of lower caudal lobe. Greater distance between origins of pectoral and pelvic than the distance of tip of snout to origin of pectoral fin; but shorter compared to that from tip of snout to end of pectoral base. Similar to A. japonicus but differs in having distance between orbits about the length of snout in front of mouth; length of nostril about 1/2 distance between nostrils; the upper and lower labials about equal in length (Ref. 41248).
Body shape (shape guide): elongated.
دورة الحياة وسلوك التزاوج
النضج | التكاثر | وضع البيض | بيض | الخصوبة | اليرقات
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
Nakaya, K. and K. Sato, 1999. Species grouping within the genus Apristurus (Elasmobranchii: Scyliorhinidae). p. 307-320 In Séret B. & J.-Y. Sire [eds]. Proc. 5th Indo-Pac. Fish Conf., Noumea, 1997. (Ref. 39431)
حالة القائمة الحمراء للاتحاد الدولي لحفظ الطبيعة والموارد الطبيعية (Ref. 130435: Version 2025-2 (Global))
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مؤشر التنوع الشُعبي الوراثي (مرجع 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=0.00288 (0.00172 - 0.00485), b=3.07 (2.92 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
مستوى غذائي (مرجع 69278) |
4.0 ±0.7 se; based on size and trophs of closest relatives |
المرونه (مرجع 120179) |
منخفظ جدا, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أكثر من 14 سنة (Fec assumed to be <10). |
ضعف الصيد (Ref. 59153) |
Moderate vulnerability (40 of 100). 🛈 |