分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Chilodontidae (Headstanders)
唇齒脂鯉科 (Headstanders)
Etymology: Caenotropus: Greek, kainos = new + Greek, trope = turn, revolution (Ref. 45335); schizodon: The specific name, schizodon, from Greek words schize for divided and odons teeth, is in reference to the bifid premaxillary teeth present in the species (Ref. 58736).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 大洋性. 熱帶; 10°S - 11°S
South America: Brazil. Upper and middle portions of Rio Tapajós basin, Rio Amazonas basin (Ref. 58736).
南美洲: 巴西。 Rio Tapajos 流域， Rio 亞馬遜河流域的上游與中游部分.(參考文獻 58736)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 9.1 cm SL 雄魚/尚未辨別雌雄; (Ref. 58736)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Body relatively robust, more so in larger individuals. Greatest body depth at dorsal-fin origin. Dorsal profile of head distinctly convex anteriorly, straight to slightly convex from region proximate to vertical through posterior nostril to rear of supraoccipital. Dorsal profile of body straight to slightly convex from rear of head to dorsal-fin origin, straight and posteroventrally slanted along dorsal-fin base, and slightly convex to slightly concave from base of last dorsal-fin ray to caudal peduncle. Dorsal surface of body with transversely obtuse median ridge extending five to six scales anterior of dorsal fin. Dorsal surface of body smoothly rounded transversely posterior of fin. Ventral profile of body more or less gently convex from tip of lower jaw to caudal peduncle. Prepelvic region transversely flattened with obtuse lateral angles and median series of scales. Postpelvic region gently rounded posterior to anus (Ref. 58736).
身體相當結實的, 比較如此在較大的個體中。 在背鰭起點的最大體高。 頭部的背面輪廓明顯前部凸出, 直線到些微中凸從區域靠近垂直的經過後鼻孔對上枕骨後面。 身體直線的背面輪廓到些微中凸從頭部的後面到背鰭起點, 直線與腹面後方地傾斜的沿著背鰭基底, 與些微中凸到些微凹的從最後背鰭鰭條到尾柄的基底。 身體有的背面橫著圓頭中央的脊延伸背鰭是前面的五到六個鱗片。 身體的背面平滑圓形橫著鰭後面。 身體的腹面輪廓約略逐漸中凸從下頜到尾柄的頂端。 腹鰭前的區域橫著以圓頭的側面角與中央的成列鱗片平的。 Postpelvic 區域逐漸圓形在肛門後面.(參考文獻 58736)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
南美洲: 巴西。 Rio Tapajos 流域， Rio 亞馬遜河流域的上游與中游部分.(參考文獻 58736)
Scharcansky, A. and C.A.S de Lucena, 2007. Caenotropus schizodon, a new chilodontid fish from the Rio Tapajós drainage, Brazil (Ostariophysi: Characiformes: Chilodontidae). Zootaxa 1557:59-66. (Ref. 58736)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 07 November 2018
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5664 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00178 - 0.01174), b=3.10 (2.87 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.9 ±0.2 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
