分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gadiformes (Cods)
鱈形目 (Cods) >
Bregmacerotidae (Codlets)
犀鱈科 (Codlets)
Etymology: Bregmaceros: Greek, bregma = front of the head + Greek, keras, -atos = horn (Ref. 45335).
Issue
Based on juveniles which may represent more than one species, the validity of the species is doubtful (Torii, 2003, unpublished thesis) (H.Ho, pers.comm. 2/2017).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋. 熱帶
Western Atlantic: eastern Gulf of Mexico and the Caribbean Sea west of the Lesser Antilles.
西大西洋: 墨西哥灣東方與加勒比海位於小安地列斯群島西方。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 1.6 cm SL 雄魚/尚未辨別雌雄; (Ref. 37039)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 40 - 44; 臀鰭軟條: 41 - 46; 脊椎骨: 47 - 50. Body color limited to dark melanophores located on anterior half of body. Dorsal and anal fins are relatively short and symmetrical. Snout moderately acute. Terminal mouth with jaws slightly oblique and extends beyond anterior margin of pupil. Head length 21.3-25.5%; predorsal length 25.6-45.2%; body depth 13-16% of SL. Eye diameter 0.7-0.9 times the snout length and 0.9-1.3 times interorbital width. Head length 3.5-5.3 times interorbital width. Caudal fin has31-33 rays. Myomeres 44-47. Smallest larvae (1.7 - 3.5 mm SL) have large, stellate chromatophores at angle of jaw, scattered over hindbrain and at the base of 1st dorsal fin. Large larvae (5-10 mm SL) have additional chromatophores on midbrain, hindbrain, and on ventral surface of anterior half of visceral mass. Juvenile specimens have chromatophores scattered over anterior third of the body (Ref. 37039).
體色僅限於被位於前半部的身體上的深色的黑色素細胞了。 背鰭與臀鰭是相當短的與對稱的。 吻一般尖銳。 端位口具有顎些微斜而且延伸超過瞳孔的前緣。 頭長 21.3-25.5%; 前背的長度 25.6-45.2%; 體高 13-16% 的 SL。 眼直徑 0.7-0.9 倍吻長度與 0.9-1.3 倍眼間骨寬度。 頭長 3.5-5.3 倍眼間骨寬度。 尾鰭有 31-33個鰭條。 肌瘤 44-47. 小的仔魚 (1.7- 3.5 mm SL) 有大的, 星形的色素胞在突出部位上頜, 散佈在腦的最後部而在第一背鰭的基底。 大的仔魚 (5-10 mm SL) 在中腦，腦的最後部上有附加的色素胞, 與在前半部內臟的腹面上。 稚年的標本有色素胞散佈在身體的前三分之一.(參考文獻 37039)
Maximum size given for a juvenile specimen which may be paedomorphic (Ref. 37039).
幼年的標本那可能是幼形遺留給的最大體長.(參考文獻 37039)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
西大西洋: 墨西哥灣東方與加勒比海位於小安地列斯群島西方。
McEachran, J.D. and J.D. Fechhelm, 1998. Fishes of the Gulf of Mexico. Volume 1: Myxiniformes to Gasterosteiformes. University of Texas Press, Austin. 1112p. (Ref. 37039)
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Estimates based on models
Preferred temperature (Ref.
123201): 17.3 - 27.1, mean 22.4 °C (based on 141 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00152 - 0.00908), b=3.19 (2.97 - 3.41), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
