Manchester Memoirs, Vol. li. (1907), No. 9. 7 



Cristellaria, Lamarck. 



* Cristellaria crepidula, Fichtel and Moll, sp. 

 (PL 2, fig. 1). 



Nautilus crepidula, Fichtel and Moll O03), P- 107, 

 pi. 19, figs, g— i. 



Cristellaria (F. and M.), d'Orbigny ('39), p. 64, pi. 8, 

 fig. 17, 18. 



C. Crepidula (F. and M.), Brady ('84), p. 542, pi. 67. 

 figs. 17, 19, 20, and pi. 68, figs. 1, 2. 



Only two typical examples were found, and four 

 fragments. A fair number of small specimens occur which 

 I think may be brought under this heading, and I have 

 chosen one for illustration. It agrees with the others, 

 excepting that its segments are rather more lobulated, 

 and that it has an extra chamber or two, the last of which 

 is more inflated than the preceding ones. Much better 

 examples of the type form occur at Palermo. 



Cristellaria wetherellii, Jones, sp. (PI. 2, fig. 2) 



= Cristellaria fragraria, Giimbel. 

 Cristellaria wetherellii (Jones), Brady ('84), p. 537> 

 pi. 114, fig. 14). 



C. fragraria (Giimbel), Burrows and Holland ('97)> 

 p. 38, pi. 3, figs. 1-16. 



One single specimen found ; it is in good condition. 

 The longitudinal costae are confined to the earlier portion 

 of the test, which is slightly compressed. 



* Cristellaria cultrata, Montfort, sp. 



Robulina subcultraia, d'Orbigny ('39), p. 26, pi. 5, figs. 

 19, 20. 



Cristellaria cultrata (Montfort), Parker and Jones 

 065)» P- 344- pl- 13. fi gs. 17, 18 and pi. 16, fig. 5. 



