PLATE 49. 



LITHELIDA, STREBLONIDA, PHOKTICIDA et SOREUMIDA. 



Diam. Page 



Fig. 1. Spirema melonia, n. sp., . x 300 692 



Fig. 2. Lithelius Solaris, n. sp. (the first central convolutions only), . x 300 695 



Fig. 3. Larcospira quadrangula, n. sp., . x 300 696 



Fig. 4. Pylospira octopyle, n. sp., . . x 300 698 



Fig. 5. Tholospira cervicornis, n. sp., . x 300 700 



Fig. 6. Tholospira dendrophora, n. sp., . . x 300 700 



Fig. 7. Spironium octonium, n. sp., . . x 300 701 



Fig. 8. Streblacantha siderolina, n. sp., . x 300 706 



Fig. 8a. Outlines of the chambers, . x 200 



Fig. 9. Streblopyle helicina, n. sp., . x 390 707 



Fig. 10. Phorticium pylonium, n. sp., x 300 709 



Fig. 11. Spongophoi-tis larnacilla, n. sp., . . x 200 711 



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



Figs. 116 to lid. The enclosed medullary Zamac7/a-shell. b, Dorsal 

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



Fig. 12. Soreuma irregulare, n. sp., . x 200 713 



Fig. 13. Sorolarcus lamacillifer, n. sp., x 300 715 



