24 " ENDEAVOUR " SCIENTIFIC RESULTS. 



marked difference in outline between the earlier portion of the 

 shell and the last chamber, which is suggestive of some forms 

 referred to the dimorphous genus Amphicoryne, Schlumberger. 



In the southern hemisphere this species has been previously 

 found in the New Zealand area at 85 and 150 fathoms, and in 

 shore-sand at Torquay, Victoria. 



Forty miles south of Cape Wiles, 100 fathoms. One 

 example. 



Genus Cristellaria, Lamarck. 



Cristellaria articulata, Reuss. 



Forty miles south of Cape Wiles, 100 fathoms. Frequent. 



Cristellaria cultrata, Montfort, sp. 

 Station 36, east of Tasmania, 777 fathoms. One specimen. 



Cristellaria orbicularis, d'Orbigny, sp. 

 Forty miles south of Cape Wiles, 100 fathoms. Frequent. 



Cristellaria rotulata, Lamarck, sp. 



Forty miles south of Cape Wiles, 100 fathoms. One 



example. 



Cristellaria schloenbachi, Renss. 



Forty miles south of Cape Wiles, 100 fathoms. Two 

 specimens. 



Cristellaria tricarinella, Revss. 



(Plate I., fig. 6). 



(Vaginuline variety). 



Cristellaria tricarinella, Reuss, Sitzungsb. k. Ak. Wiss., 

 xlvi., 1862, p. 68, pi. vii., fig. 9, pi. xii., figs. 2-4. 

 C. protosphaera, Reuss, ibid., 1862, p. 68, pi. vii., fig. 8, 

 pi. xii. fig. 10. 



The present shell is nearest Reuss' figure of C. protosphaera, 

 and in fact approaches more closely to the type of Vaginvlina, 

 which has no coiled commencement as in Cristellaria. Since 

 there are gradations between the two species mentioned. Dr. 

 Brady has rightly included them under one name. 



C. tricarinella is a well-known Cretaceous and Eocene fossil. 

 Its occurrence in recent dredgings is rather sparing, being 

 noted from only the following localities : — Off the Philippine 



