Iswaeon
McCafferty & Webb, 2005
Iswaeon is a of small minnow in the , containing at least three described . The genus was established by McCafferty & Webb in 2005. Species in this genus are known from North America, with records from the United States.
Pronunciation
How to pronounce Iswaeon: //ˈɪsweɪɒn//
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Identification
As a of , Iswaeon share the characteristics of small, streamlined bodies and reduced typical of minnow . Definitive identification to genus requires examination of and other microscopic features; species-level identification relies on details of male genitalia, coloration patterns, and leg .
Images
Distribution
North America; known from the United States based on descriptions (I. anoka from Minnesota, I. davidi from Indiana, I. rubrolaterale from Illinois and Wisconsin).
Similar Taxa
- BaetisBoth are with similar small minnow ; Iswaeon differs in structure and specific coloration patterns.
- CentroptilumAnother with overlapping size range and preferences; distinguished by details and genital .
More Details
Taxonomic history
The was erected by McCafferty & Webb in 2005 to accommodate previously placed in other genera based on morphological revisions.