رده بندی / Names
اسامي عام | مترادف | Catalog of Fishes(جنس, گونه ها) | ITIS | CoL | WoRMS | Cloffa
(كوسه ها و سپرماهيان) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Scyliorhinidae (Cat sharks) > Scyliorhininae
Etymology: Scyliorhinus: skylion, Greek for dogfish or small shark; rhinus, from rhine (Gr.), rasp, alluding to a shark’s jagged, rasp-like skin (See ETYFish); cabofriensis: -ensis, Latin suffix denoting place: off Cabo Frio, northeastern Rio de Janeiro State, Brazil, type locality (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي; تغييرات عمق ? - 536 m (Ref. 107325). Tropical
Southwest Atlantic: Brazil.
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 46.8 cm TL جنس نر / بدون خواص جنسي; (Ref. 107325); 45.0 cm TL (female)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
This species is distinguished from its congeners in SW Atlantic by the following characters: color pattern with randomly and asymmetrically distributed black and white spots of varied sizes (predominantly small) (vs. spots predominantly within saddles and with approximate bilateral symmetry in S. haeckelii, S. ugoi); saddles not well defined and without sharp median projections (vs. well-defined saddles in S. haeckelii and saddles with sharp median projections in S. ugoi); claspers with a well-developed groove on the terminal portion of the ventral terminal cartilage (vs. absent or undeveloped groove in S. haeckelii, S. ugoi); no envelope and poorly developed exorhipidion (vs. with envelope and developed exorhipidion in S. haeckelii); neurocranium with a proportionately broader basal plate (vs. narrow basal plate in S. haeckelii, S. ugoi); other characters, although less conspicuous, also distinguishes these species: small and rounded snout, mean preoral length 5% TL (vs. mean 4.5% TL in S. haeckelii); moderately broad and depressed head with its length 19.7-20.8% TL (vs. 17.5-19.2% TL in S. haeckelii); first dorsal fin triangular, never subrectangular (vs. sometimes subrectangular in S. haeckelii); interdorsal space 2 times dorsal-caudal space (vs. 1.2-2 times in S. haeckelii, 2.1-2.5 in S. ugoi); ventral terminal 2 cartilage slender, positioned on ventral terminal cartilage, 1.5 times length of ventral terminal cartilage (vs. 1.8 times in S. haeckelii); components of clasper proportionately larger than in S. haeckelii; somewhat small sized adult males, about 39.3 cm TL, and adult females, at least 42.0 cm TL (vs. 44.5 cm and 50.0 cm TL, respectively, in S. ugoi) (Ref. .107325).
Males of this species range in size from 30.8-46.8 cm (n = 8) and females from 27.6-45.0 cm (n = 16). Size of first maturity not exactly defined, however, males have well-developed claspers at 39.3 cm TL and egg-capsules and other evidence that would help establish size of maturity in females without dissection have not been found. Stomach contents include squid beaks and skeletal elements of bony fishes (Ref. 107325).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Soares, K.D.A., U.L. Gomes and M.R. de Carvalho, 2016. Taxonomic review of catsharks of the Scyliorhinus haeckelii group, with the description of a new species (Chondrichthyes: Carcharhiniformes: Scyliorhinidae). Zootaxa 4066(5):501-534. (Ref. 107325)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2024-2)
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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00263 (0.00138 - 0.00502), b=3.21 (3.04 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.8 ±0.5 se; based on size and trophs of closest relatives
جهندگی (Ref.
120179): پايين ، كم, كمينه زمان لازم براي دو برابر شدن جمعيت 5/4 – 14 سال (Preliminary low fecundity).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (37 of 100).
