| 1965 Helotholus vema - Hays pl. 2, fig. 3 |
| 1971 Pseudocubus vema - Petrushevskaya p. 46 |
| 1975 Helotholus vema - Chen pl. 16, figs. 1-4 |
| 1976 Helotholus vema - Weaver pl. 1, figs. 10-11 |
| 1983 Helotholus vema - Weaver pl. 3, figs. 2-4 |
| 1990 Helotholus vema - Lazarus pl. 7, figs. 1-5 |
