PLATE 49. 



LlTHELIDA, STREBLONIDA, PHORTICIDA et SOREUMIDA. 



Fig. 1. Spirema melonia, n. sp., . 



Fig. 2. Lithelius Solaris, n. sp. (the first central convolutions only), . 



Fig. 3. Larcospira quadrangula, n. sp., 



Fig. 4. Pylospira octopyle, n. sp., 



Fig. 5. Tholospira cervicornis, n. sp., 



Fig. 6. Tholospira dendrophora, n. sp., 



Fig. 7. Spironium octonium, n. sp., . 



Fig. 8. Streblacantha siderolina, n. sp., 



Fig. 8a. Outlines of the chambers, 



Fig. 



Fig. 



Fig. 11. Spongophortis larnacilla, n. sp. 



9. Streblopyle helicina, n. sp., . 

 10. Phorticium pylonium, n. sp., 



Fig. 

 Fig. 



Fig. 11a. The upper half of the cortical shell is removed. 

 Figs. 116 to 11 a". The enclosed medullary Larnacilla-sheU. b, Dorsal 

 view ; c, lateral view ; d, basal view. 



12. Soreuma irregulare, n. sp., . 



13. Sorolarcus larnacillifer, n. sp., 





Diam. 



Page 



X 



300 



692 



X 



300 



695 



X 



300 



696 



X 



300 



698 



X 



300 



700 



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300 



700 



X 



300 



701 



X 



300 



706 



X 



200 





X 



300 



707 



X 



300 



709 



X 



200 



711 



x 200 

 x 300 



713 

 715 



