Two New Intergeneric Hybrids Involving Semotilus atromaculatus and the Genus Phoxinus with Analysis of Additional Semotilus atromaculatus: Phoxinus Hybrids

Natural hybridization is relatively common among North American cyprinids, especially among species that spawn over the gravel nests of pit-, pit-ridge-, and mound-building cyprinids. A widespread pit-ridge-building cyprinid, the creek chub, Semotilus atromaculatus, is known to hybridize with a numb...

Full description

Saved in:
Bibliographic Details
Published in:Copeia 1997-02, Vol.1997 (1), p.204-209
Main Authors: Eisenhour, David J., Piller, Kyle R.
Format: Article
Language:English
Subjects:
Animal nesting
Creeks
Fish scales
Freshwater
Freshwater fishes
Genetic hybridization
Gravel
Head
Hybridity
Peritoneum
Phoxinus
Semotilus atromaculatus
Shorter Contributions
Vertebrae
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Natural hybridization is relatively common among North American cyprinids, especially among species that spawn over the gravel nests of pit-, pit-ridge-, and mound-building cyprinids. A widespread pit-ridge-building cyprinid, the creek chub, Semotilus atromaculatus, is known to hybridize with a number of cyprinids. There are numerous reports of hybrids involving species of Phoxinus, including P. oreas, P. erythrogaster, and P. eos and P. neogaeus. There are no previous reports, however, of a hybrid involving two recently described species, the Tennessee dace, P. tennesseensis, or the blackside dace, P. cumberlandensis. Characters in published descriptions of hybrids involving S. atromaculatus and the genus Phoxinus were compared to uncover patterns of phenotypic expression of characters. Characters for each of the hybrids were scored as similar to one of the parental species ("Phoxinus") or ("Semotilus") or as intermediate.
ISSN:0045-8511
1938-5110
DOI:10.2307/1447860