分類 / 名前
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) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Notoraja: Greek, noton = back + Latin, raja = fish, Raja sp. (Ref. 45335); martinezi: Named for Jimmy Martínez, an Ecuadorian Biologist.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 深海魚; 深さの範囲 1256 - 1472 m (Ref. 117110). Deep-water
Eastern Pacific, between Costa Rica and Ecuador.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 47.5 cm TL オス/雌雄の選別がない; (Ref. 117110); 34.6 cm TL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
This heart-shaped, medium-size species is distinguished by the following characters: dark brownish dorsal and ventral surface; the disc is slightly wider 54.7 (51.7-55.2) %TL than long 51.6 (49.0-54.3) %TL; dorsal head length 21.3 (18.9-20.4) %TL; interspiracular width 6.3 (6.6-7.6) %TL; internarial space 8.4 (6.6-7.9) %TL; preorbital length 14.9 (13.0-14.9) %TL, 4.4 (3.8-4.9) times orbit length and 3.0 (2.9-3.3) times distance between eyes (interorbital space); tail width
at pelvic fin axil 1.5 (1.3-1.4) times its height; presence of a single, strong, hook-like, angled posteriorly preorbital thorn; disk with small, fine denticles, randomly distributed, slightly more abundant on the sides of the caudal region; long claspers (cloacal length) 23.8% TL and slim; long and slender tail, covered with abundant strong, thin, non aligned and posteriorly angled thorns, which differs from all other congeners; thin lateral tail folds merging at tail axil, thinner than tail width at any point and enlarged posteriorly; nasal lobes are expanded, nasal curtain maximum width 8.4 (7.8-9.5) %TL; anterior pelvic-fin lobe is longer than posterior 13.1 (16.2-16.8) %TL and 10.1 (7.8-9.8)% TL when straightened (shorter than posterior in natural position though); total pectoral-fin radials 65 (63-65); monospondylus centra 25 (24-26); predorsal diplospondylous centra 58 (60-65); total predorsal centra 83 (85-91); caudal centra 20 (22-25) total centra 118 (123-128) (Ref. 117110).
Body shape (shape guide): other (see remarks); Cross section: flattened.
Female maturity and size at birth not known (but the smallest specimen taken was 24.3 cm TL) (Ref. 117110).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Concha, F.J., D.A. Ebert and D.J. Long, 2016. Notoraja martinezi sp. nov., a new species of deepwater skate and the first record of the genus Notoraja Ishiyama, 1958 (Rajiformes: Arhynchobatidae) from the eastern Pacific Ocean. Zootaxa 4098(1):179-190. (Ref. 117110)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
水産業: 興味がない
用具
特記事項
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00279 - 0.01081), b=3.11 (2.94 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (参照
69278): 3.8 ±0.7 se; based on size and trophs of closest relatives
回復力 (参照
120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
漁業の脆弱性 (Ref.
59153): Moderate vulnerability (38 of 100).
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