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Petrushevskaya 1971


Figure 18

Distribution of bars diverging from the sagittal ring (original).
I) Petalospyris tumidula Kozlova; II) Ceratospyris antarctica (Haeckel); III) Ceratospyris clathrata (Ehr.); IV) Tholospyris tripodiscus Hck.; V) Zygostephanium (=Liriospyris) elevate (Goll.); VI) Acanthodesmia; VII) Lophospyris sp. i.; VIII) L. pentacantha (Ehr.); IX) Trissocyclus sp. m.; X) Lithocircus. Other designations same as in fig. 10.