| 词条 | Hisonotus acuen |
| 释义 |
| image = Hisonotus acuen-442-105-g006.jpg | image2= Hisonotus acuen-442-105-g001 (3).jpg | taxon = Hisonotus acuen | authority = Silva, Roxo & Oliveira, 2014 [1] | range_map = H. acuen range map.jpg | range_map_caption = Range map for H. acuen }}{{commonscat}}Hisonotus acuen is a species of armored catfish from the Xingu River in Brazil.[2] EtymologyThe species name is taken from "acuen", the name used in anthropological literature to refer to the indigenous Xavante people.[2] DescriptionThe species bears a resemblance to H. chromodontus, being distinguished by the yellow as opposed to reddish-brown color of its teeth and the transparency of the tail fin.[2] H. acuen grows to a maximum length of 29 millimeters. The head is rounded, with small eyes and round lips.[2]General body coloration is light brown on the dorsal and yellowish on the ventral surface, the two colors being divided by a brown stripe that runs from the snout to the caudal peduncle. The fins are transparent with brown dots on the rays. The tail fin is transparent except for a dark spot at the base.[2] Males have a genital papilla, a feature missing in females.[2] Features can vary widely among populations, with the most variation occurring in the body's depth at the dorsal fin and in the snout and abdomen length.[2] Range and habitatH. acuen is found in small streams that are part of the Xingu River basin in Matto Grosso, Brazil. Individuals are usually found in shallow, slow flowing water. Streams they inhabit are usually flat-bottomed and clear, with vegetation covering the streambed.[2]References1. ^{{cite web |url=http://zoobank.org/NomenclaturalActs/12454B4D-E9CA-4A89-A307-B77A703308C9 |title=Hisonotus acuen Silva, Roxo & Oliveira, 2014 |website=ZooBank |accessdate=22 April 2015 }} {{Taxonbar|from=Q18349593}}{{Loricariidae-stub}}2. ^1 2 3 4 5 6 7 {{cite journal |last=da Costa e Silva |first=Gabriel |last2=Roxo |first2=Fabio |last3=Oliveira |first3=Claudio |date=25 September 2014 |title=Hisonotus acuen, a new and phenotypically variable cascudinho (Siluriformes, Loricariidae, Hypoptopomatinae) from the upper rio Xingu basin, Brazil |url=https://zookeys.pensoft.net/articles.php?id=4108 |journal=ZooKeys |publisher=Pensoft |issue=442 |pages=105–125 |doi=10.3897/zookeys.442.7870 |accessdate=1 October 2014}} 4 : Loricariidae|Fish of Brazil|Fish described in 2014|Endemic fauna of Brazil |
| 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。