| 1966 Spirema sp. - Benson p. 268-269; pl. 18, figs. 9-10 | | 1983 Spirema sp. - Benson p. 508; pl. 6, figs. 3-4 | | 1988 Dipylissa bensoni - Dumitrica p. 190, 192; pl. 3, figs. 1-7; pl. 4, figs. 11-15; pl. 6, figs. 1-15 | | 1998 Dipylissa bensoni - Boltovskoy fig. 15.83 |
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