THE FORAMINIFEEA OF THE EXE ESTUARY. 343 



CORNUSPIRA FOLIACEA (PJiilippi). A single individual somewhat 

 doubtfully identified, from Exmouth Docks. 



Truncatulina lobatula (Walker and Jacob). Dead shells from 

 south slope of Polesands ; absent elsewhere. An adherent species ; its 

 absence is probably largely if not entirely due to the want of suitable 

 hosts. 



It may be noted that Planorhulina mediterranensis, another adherent 

 species, is also absent. 



Eotalia beccarii (Linn.). In all samples. Where the numbers are 

 so small percentages are apt to be misleading. At the Warren and 

 Salthouse Lake this species is third in point of number, Nonionina 

 and Polystomella being distinctly more numerous. 



In the sample from Lympstone Eotalia beccarii is distinctly the 

 dominant species, as also in the dredging from Exmouth Docks. 



JSTONIONINA DEPRESSULA (Walker and Jacob). All samples. The 

 dominant species at Warren and the second at Lympstone, probably the 

 second in Exmoutli Docks. Distinctly an estuarine species, but is still 

 fairly prominent in some localities at twenty fathoms off this coast. 



Nonionina stelligera, d'Orbigny. Probably occurs in all samples; 

 in much less number, however, than deprcssula. 



Polystomella crispa (Linn.) and 



Polystomella striato-punctata (Fichtel and Moll). These forms 

 have been treated as separate species to this extent, that the indi- 

 viduals have been assigned to one or the other denomination according 

 to a purely arbitrary judgment that the specimen more nearly 

 approached the recognised type of crispa or striato-punctata. 



Var. striato-p)unctcda is distinctly the more prominent, and is second 

 in order at the Warren, probably third in order at Salthouse Lake, 

 third at Lympstone, and third in Exmouth Docks. 



AVell-charactered forms of var. crispa are rare, and extreme types 

 absent. 



Polystomella arctica, Parker and Jones. This seems another ill- 

 defined species, which may apparently be regarded as of merely varietal 

 significance. 



The above list of species gives all the commoner forms, and some at 

 least which are present in but small numbers ; it cannot, however, be 

 regarded as actually exhaustive. 



Generally speaking, it indicates that the conditions are very distinctly 

 more estuarine than at Salcombe. 



A few dredgings from the low-water channels would have given a 

 greater value to the results. 



NEW SERIES. — VOL. YI. KO. 3. 2 A 



