THE FORAMINIFERA. 59 



first discovered) in the Dee catalogue, from Mr. Brady's 

 MS. notes. S. I'lmhata is very rare. 



Patellina corrugata, Will. 



A very pretty, distinct, and well-marked form, which is 

 frequent, though very small, in our district. 



Discorhina spp., P. and J. 



Z). globidaris is common everywhere in the district. 

 D. ochracea was figured and described by Prof. Williamson, 

 in his Recent Foraminifera of Great Britain ; but is not 

 figured or described by Mr. Brady. D. biconcava is a well- 

 marked form, which when found in the Dee, was new to the 

 British Fauna. D. tuherculata is figured and described by 

 Messrs. Balkwill and Wright in the Dublin catalogue. It is 

 a rare but distinct form, studded with large tubercles, each of 

 which is perforated in the only specimen I have found. 



Planorbulina mediterranensis, d'Orb. 



Is very distinct and well developed, and frequent over the 

 whole district. I have also found two of the very singular 

 rolled-up forms of the shell. 



Truncatidina spp., d'Orb. 



T. lobatula is one of the common shells of the district ; 

 the other three species are rare, and barely typical. 



Pidvinulina spp., P. and J. 



This is essentially a deep water genus, and the forms we 

 get in the district are always feeble and ill-developed. 



Rotalia spp., Lamk. 



R. beccarii is as common as possible, and occurs in 

 abundance in every locality. R. nitida is probably only its 

 young state. 



Gypsina inhcerens, Schultze. 



Described as Tinoporus lucidus in the Dee list. It is 

 very rare in the district. 



