308 Transactions of the Society. 



320. Haplophragmium latidorsatum Borneniann sp. 



\ ina lutidorsata Bornemann, 1855, Zeitschr. d. deutsch. geol. Gesell., 



vol. vii. p. 339, pi. xvi. fig. 4 a, b. 

 Haplophragmium crassum Beuss, 1867, Sitzungsh. d. k. Ak;id. Wiss. Wien, 



vol lv. p. 46, pi. i. figs. 1, 2. 

 Lituola subglobosa M. Sure, 1868, Yidensk.-Selsk. Forliandlinger, p. 250. 

 Ditto. (M.' Sars) G. 0. Sars, 1871, Vi.lensk.-Selsk. Forliandlinger, p. 253. 

 Haplophragmium rotundidorsatum JIautken, 1875, Mittheil. Jahrb. d. k. ung. 



geol. Anstalt., vol. iv. p. 12, pi. i. fig. 2. 

 Haplophragmium lati.tlomat.um (Bornemann; Brady, 1881, Forani. 'Challenger/ 



p. 307, pi. xxxiv. figs. 7-10, 14. 

 Ditto. (Bornemann) Goi : s, 1894, Arctic and Scandinavian Forani. , p. 21, 



pi. v. figs. 102-120. 



We have one minute specimen derived from the rarely- visible 

 band of clays, named by Mr. Clement Eeid "the Selsey Beds," 

 which appears to be referable to this species. If so, its presence in 

 our gatherings is certainly noteworthy, as H. latidorsatum is one of 

 the most typical of deep-water and cold-area forms. In the cold 

 area of the Shetland-Faeroe channel and in the Norwegian Deep 

 to the north of this channel the species occurs in such enormous 

 numbers as to form a true deposit or ooze, in which the presence 

 of other organisms is completely masked by the preponderance of 

 this species, which also attains to a considerable size. Apart from 

 this area, the records of H. latidorsatum are almost confined to very 

 deep water, except in the Arctic and Antarctic seas. As a fossil 

 it lias been recorded from several Eocene clays in Germany and 

 Hungary. 



EXPLANATION OF PLATE X. 



Fig. 1. — Bulimina selseyensis sp. n. x 100. 

 „ % Ditto. Ditto. 

 ,. 3. — Bolivina tortuosa Brady, x 100. 

 ,, 4. Ditto. Ditto. 



,, 5. — Bolivina Durrandii Millett. x 100. 

 ,, tj. — Bolivina eocsenica Terquem. x 100. 

 „ 7. Ditto. Ditto. 



,, S. — Bolivina laevigata 'Williamson sp. x 100. 

 „ 9. Ditto Ditto. 



,, 10. — Bolivina textilarioides Beuss. x 100. 



„ 11. Ditto. Ditto. 



,, 12. Ditto. Ditto. 



,. 13. — Lagena perlucida Williamson, x 100. 



,, 14 — Lagena squamosa var. Montagui Alcock sp. Base view, x 100. 



„ 15. Ditto. Oral view, x 100. 



,, 16- Lagena kicida Williamson sp. Double shell, x 100. 



,, 17. — Polymorphina acuminata d'Orbigny sp. x 100. 



,, 18. Ditto. Ditto. 



., L9. — Dimorphina longicollis Brady sp. x 100. 



,, 20. — Discorbina rosacea var. selseyensis var. nov. Superior side, x 100. 



„ 21. Ditto. Inferior side, x 100. 



,. 22. D. patelliformis var. corrugata var. nov. Inferior side, x 100. 



„ 23. Ditto. Superior side, x 100. 



,. 24. Ditto. Edge view, x 100. 



