分类 / Names
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Teleostei >
Characiformes (Characins) >
Distichodontidae (Distichodus)
Etymology: Distichodus: Greek, di = two + Greek, stix, stichos = line, row (Ref. 45335); langi: Named in honour of the collector, Herbert Lang (Ref. 41594), who collected fish in the Congo basin from 1909 to 1915 for the AMNH, in collaboration with James Chapin (Ref. 96324).
Eponymy: Herbert Otto Henry Lang (1879–1957) was born in Germany and trained as a taxidermist. [...] (Ref. 128868), visit book page.
More on authors: Nichols & Griscom.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 大洋性. 熱帶
Africa: Uele River in Democratic Republic of the Congo (Ref. 41594, 96324). Also reported from Aruwimi River (Ref. 96324), but this is unconfirmed (Ref. 106290).
非洲: 已知只來自模式標本產地, 烏班基河流域。 血族的對 安東氏複齒脂鯉〔Distichodus antonii〕 與一個相同的可能地是。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 36.4 cm SL 雄鱼/尚未辨别雌雄; (Ref. 96324)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 0; 背的软条 (总数) : 26 - 28; 臀棘: 0; 臀鳍软条: 14. Diagnosis: Within the Congo basin, Distichodus langi can be distinguished from D. affinis, D. altus, D. decemmaculatus, D. noboli, D. notospilus and D. teugelsi by its higher total number of lateral line scales, 68-70 vs. less than 46; from D. maculatus by the absence of large, dark spots all over the body and a higher number of dorsal fin rays, 26-28 vs. 19-21; from D. antonii by its inferior, vs. terminal, mouth, its higher number of scales between the lateral line and the dorsal fin, 15-16 vs. 10-12, and its higher number of lateral line scales in front of the hypural joint, 68-70 vs. 52-64; from D. fasciolatus by its higher number of dorsal fin rays, 26-28 vs. 24-26, its higher number of pelvic fin rays, 11 vs. generally 10, and its deeper head, 67.4-69.4% of head length vs. 35.9-62.9% of head length; from D. lusosso by its inferior, vs. terminal, mouth and feebly compressed snout, vs. distinctive prolonged; from D. sexfasciatus by its feebly compressed snout, vs. strongly compressed, its higher number of dark vertical bars along the body, 13 vs. 6-7, and its higher number of teeth on the outer row on both jaws, more than 20 vs. 12-14; and from the D. atroventralis complex by a higher number of scales between the lateral line and pelvic fin, 12 vs. 9-11, its higher number of pectoral fin rays, 21 vs. 17-20, its higher number of circumpeduncular scales, 24-25 vs. 20-24, and its deeper head, 67.4-69.4% of head length vs. 35.1-55.7% of head length (Ref. 96324).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
非洲: 已知只來自模式標本產地, 烏班基河流域。 血族的對 安東氏複齒脂鯉〔Distichodus antonii〕 與一個相同的可能地是。
Moelants, T., V. Mbadu Zebe, J. Snoeks and E. Vreven, 2014. A review of the Distichodus antonii assemblage (Characiformes: Distichodontidae) from the Congo basin. J. Nat. Hist. 48(27-28):1707-1735. (Ref. 96324)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (34 of 100).
