crissum


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crissum

[′kris·əm]
(vertebrate zoology)
The region surrounding the cloacal opening in birds.
The vent feathers covering the circumcloacal region.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Other species are Epomidiostomum unicinatum, Capillaria spp., Tetrameras spp., Amidostomum acutum, Streptocara crassicauda, Sciadiocara rugosa, Porrocaecum crissum, strongyloides spp., Capillaria contorta, Sciadiocara rugosa.
Relatively pale individuals have an unmarked lower belly; individuals that are paler still are unmarked on the lower belly, crissum, and distal flanks.