Genus Coronocyclus Hartwich, 1986
Key to species
| 1 | a. Optical section of wall of buccal capsule with medial bend near middle of cylinder; Dorsal gutter not evident; Dorsal ray twice as long as lateral rays of copulatory bursa | 2 |
| b. Buccal capsule wall without medial bend near middle; Dorsal gutter prominent; Dorsal ray only slightly longer than lateral rays of copulatory bursa | 3 | |
| 2 | a. ILC inserted at 1/3 of BC depth; Proximal branch of dorsal ray does not overlap origin of middle branch . | C. sagittatus |
| b. ILC inserted at 1/5 to 1/4 of BC depth; Proximal branch of dorsal ray overlaps origin of middle branch | C. coronatus | |
| 3 | a. Mouth collar high, dorsal, ventral and lateral depressions form 4 lips; Dorsal gutter short, broad, straight, nipple-like; | C. labiatus |
| b. Mouth collar not prominent; Dorsal gutter tongue-like, projects into buccal cavity | 4 | |
| 4 | a. BC lateral walls thickest near middle of cylinder, ventral wall slightly thicker posteriorly; Tongue-like dorsal gutter smaller than dorsal esophageal tooth | C. labratus |
| b. All aspects of BC wall thicker posteriorly; Tongue-like dorsal gutter larger than dorsal esophageal tooth | C. ulambajari |
© (contents) R.J.
Lichtenfels, V.A. Kharchenko,
G.M. Dvojnos 2003
Design and programming: Yuriy Kuzmin,
2003