होलोसैफली (किमाइरस) (chimaeras) >
Chimaeriformes (Chimaeras) >
Rhinochimaeridae (Longnose chimaeras)
Etymology: Harriotta: [an]a- (L.), belonging to: per Goode & Bean (1896), in honor of Thomas Harriott (ca. 1560‒1621), English astronomer, mathematician, ethnographer and translator, who published the first English work on American natural history (1588) (See ETYFish); raleighana: In honor of Sir Walter Raleigh (ca. 1554‒1618), “philosopher and explorer, by whom the first English scientific expedition was sent to the New World” (Raleigh funded a 1585 expedition to Roanoke Island, North Carolina, with Thomas Harriott [honored in the (See ETYFish).
Eponymy: Thomas Harriott (ca: 1560–1621) was an English astronomer, mathematician, ethnographer and translator, who published first English work on American natural history (1588). [...] Sir Walter Raleigh (ca: 1554–1618), the English explorer, writer, poet, soldier and spy, needs no long biography here. The authors say of him: “…by whom the first English scientific expedition was sent to the New World.” (Ref. 128868), visit book page.
More on authors: Goode & Bean.
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
समुद्री बाथीड़िमरसल; गहराई सीमा 200 - 3100 m (Ref. 117245), usually 500 - 2000 m (Ref. 97389). Deep-water; 65°N - 49°S, 121°W - 179°E
Circumglobal.
प्रथम परिपक्वता पर लंबाई / आकार / वज़न / आयु
परिपक्व अवधि: Lm 75.8, range 66 - 84.3 cm
Max length : 120 cm OT पुल्लिंग / अलिंग; (Ref. 26346); 102.5 cm TL (female); अधिकतम प्रकाशित वज़न: 1.6 kg (Ref. 122636)
संक्षिप्त वर्णन
पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स
This species is distinguished from H. chaetirhampha by the following characters: H. raleighana with eye small, its length 7% BDL (vs. 7-9% in H. chaetirhampha); interorbital space broad, 11-16% BDL (vs. 6-9%); snout tip smooth (vs. armed with small knob-like projections; only prominent in male); first dorsal fin low, length of dorsal spine anterior margin 16% BDL (vs. 19-24%); pectoral and pelvic fins broadly rounded (vs. bluntly
pointed); interdorsal space narrow, 4.5-8.4% BDL (vs. 24.8-26.8%); length of caudal dorsal margin (CDM) longer (vs. shorter) than caudal ventral margin, CDM 74-79% BDL (vs. 49-62%); length of caudal upper ray (CUR) longer (vs. shorter) than that of lower ray, CUR 10-11% BDL (vs. 4-5%); infraorbital canal strongly curved anterior to eye, forming S-shaped loop (vs. only gently curved); with distinct longer and thicker claspers, its outer length 25% BDL (vs. 16%) and its base width 3% BDL (vs. 1%); tip of the clasper excessively inflated so as to form a large, elongate and fleshy knob, covered with 16 (17 in right side) small, multifaceted, hemp-leaf shaped spines, most of which were serially arranged along its dorsomesial margin (vs. small bulb, with several simple spines sparsely distributed); a deep slit running longitudinally from dorsolateral base of rod to the ventromesial surface of the knob, running along the dorsal side of the clasper( vs. not prominent) (Ref. 123553).
Cross section: angular.
Found on the continental slope and ocean floor (Ref. 26346). Appears to feed mainly on shellfish and crustaceans (Ref. 6871). Maximum length 120 cm without tail filament (Ref. 26346). It is captured as by-catch in deep water trawl fisheries (Ref. 117245).
Oviparous, young hatch at about 10-13 cm (Ref. 26346).
Last, P.R. and J.D. Stevens, 1994. Sharks and rays of Australia. CSIRO, Australia. 513 p. (Ref. 6871)
आईयूसीएन रेड लिस्ट स्थिति (Ref. 130435: Version 2025-2 (Global))
मनुष्यों के लिए ख़तरा
Harmless
मानव उपयोग
मात्स्यिकी: कोई रुचि बग़ैर
साधन
विशेष रिपोर्ट
XML डाउनलोड करें
इंटरनेट स्रोत
मॉडल पर आधारित अनुमान
पसंदीदा तापमान (संदर्भ
123201): 0.3 - 9, mean 5.2 °C (based on 654 cells).
जातिवृति विविधता सूचकांक (संदर्भ
82804): PD
50 = 0.6270 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00162 (0.00122 - 0.00216), b=3.15 (3.07 - 3.23), in cm total length, based on LWR estimates for this species (Ref.
93245).
ट्रॉफिक स्तर (संदर्भ
69278): 3.6 ±0.38 se; based on food items.
लौटाव (संदर्भ
120179): निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (Assuming Fec <100).
मछली पकड़ने की भेद्यता (Ref.
59153): Moderate to high vulnerability (48 of 100).
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पोषक तत्व (Ref.
124155): Calcium = 9.59 [2.75, 33.16] mg/100g; Iron = 0.372 [0.123, 0.947] mg/100g; Protein = 14.1 [9.7, 18.1] %; Omega3 = 0.294 [0.107, 0.810] g/100g; Selenium = 23.6 [7.1, 77.7] μg/100g; VitaminA = 5.9 [1.2, 26.0] μg/100g; Zinc = 0.308 [0.158, 0.601] mg/100g (wet weight);
