| 词条 | Pristobrycon maculipinnis |
| 释义 |
| name = Pristobrycon maculipinnis | regnum = Animalia | phylum = Chordata | classis = Actinopterygii | ordo = Characiformes | familia = Serrasalmidae | genus = Pristobrycon | species = P. maculipinnis | binomial = Pristobrycon maculipinnis |binomial_authority = W. L. Fink & Machado-Allison, 1992 }} Pristobrycon maculipinnis is a species of serrasalmid endemic of Venezuela. HabitatHabits mainly in black or clear acidic waters in Amazonas State of Venezuela (High Orinoco). Type locality is a back water of the Pamoni River, Casiquiare River Basin. DescriptionBody is discoid to oval with the anterodorsal slightly convex. Head robust and wide. Snout blunt. Preanal spine and ectopterygoid teeth absent. Adipose fin wide. Head dark or black in adults with mandibular and opercular areas dark red. Iris golden yellow with a dark transversal band. Body with methalic greyish laterally with numerous bands and spot giving a marmoled appearance. Abdominal area dark red. Ventral serrations and fins covered with dark spots. Dorsal, anal, and pelvic fins with external red rays. Adipose fin dark with several spots.[1][2] BehaviourIt is a predatory fish. Consuming smaller fish and attacking fins, juveniles include aquatic insects and crustaceans (shrimps). Frequently included fruits from the surrounding gallery forest. This is a solitary species. Never seen in schools. References1. ^Fink, W. & A. Machado-Allison. 1992. Tree new species of piranhas from Venezuela and Brazil. Ichthyological Explorations of Freshwaters, 2(1)>57/71. 2. ^Machado-Allison, A. & W. Fink. 1996. Los peces caribes de Venezuela: diagnosis, claves, espectos ecológicos y evolutivos. Universidad Central de Venezuela CDCH, (Colección Monografías) 52. 149p. {{ISBN|980-00-0967-1}} Caracas, Venezuela. External links
5 : Serrasalmidae|Freshwater fish of South America|Fish of Venezuela|Endemic fauna of Venezuela|Fish described in 1992 |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。