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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
นิเวศวิทยา
; น้ำจืด ผิวน้ำ. Tropical
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).
ขนาด / น้ำหนัก / Age
Maturity: Lm ? range ? - ? cm
Max length : 36.4 cm SL เพศผู้/กระเทย; (Ref. 96324)
Short description
เครื่องมือที่ใช้ในการแยกชนิดสัตว์,สิ่งมีชีวิตออกจากกัน | สัณฐานวิทยา | ความยาวต่างๆ
เงี่ยงครีบหลัง (รวม) : 0; ก้านครีบอ่อนที่หาง (รวม) : 26 - 28; เงี่ยงครีบก้น: 0; ก้านครีบอ่อนที่ก้น: 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
วัยเจริญพันธุ์ | การสืบพันธุ์ | การวางไข่ | เซลสืบพันธ์ของเพศเมีย(ไข่) | ความดกของไข่ | ตัวอ่อน
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)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
เครื่องมือ
Special reports
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แหล่งที่มาจากอินเตอร์เน็ต
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).
