分类 / Names
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Teleostei >
Gadiformes (Cods) >
Bregmacerotidae (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Based on juveniles which may represent more than one species, the validity of the species is doubtful (Torii, 2003, unpublished thesis) (H.Ho, pers.comm. 2/2017).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
生态学
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 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 1.6 cm SL 雄鱼/尚未辨别雌雄; (Ref. 37039)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 40 - 44; 臀鳍软条: 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).
体色仅限于被位于前半部的身体上的深色的黑色素细胞了。 背鳍与臀鳍是相当短的与对称的。 吻一般尖锐。 端位口具有颚些微斜而且延伸超过瞳孔的前缘。 头长 21.3-25.5%; 前背的长度 25.6-45.2%; 体高 13-16% 的 SL。 眼直径 0.7-0.9 倍吻长度与 0.9-1.3 倍眼间骨宽度。 头长 3.5-5.3 倍眼间骨宽度。 尾鳍有 31-33个鳍条。 肌瘤 44-47. 小的仔鱼 (1.7- 3.5 mm SL) 有大的, 星形的色素胞在突出部位上颌, 散布在脑的最后部而在第一背鳍的基底。 大的仔鱼 (5-10 mm SL) 在中脑，脑的最后部上有附加的色素胞, 与在前半部内脏的腹面上。 稚年的标本有色素胞散布在身体的前三分之一.(参考文献 37039)
Maximum size given for a juvenile specimen which may be paedomorphic (Ref. 37039).
幼年的标本那可能是幼形遗留给的最大体长.(参考文献 37039)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
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).
营养阶层 (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
