46 DISCOVERY REPORTS 



4. Biloculina vespertilio, Schlumberger (F iC^). 

 Five stations: 27, 45, 123, 144, 148. 



Confined to the Cumberland Bay area, where it is frequent and attains large dimen- 

 sions, notably at St. 45. 



5. Biloculina milne-edwardsi, Schlumberger. 



Bilocidina milne-edioardsi, Schlumberger, 1891, BGF, p. 567 (in the reprints p. 180), text-figs. 

 29, 30, pi. xi, figs. 79, 80. 



Five stations: 27, 45, 126, 144, 148. 



This species appears to be almost confined to the Cumberland Bay area, where it is 

 common and attains large dimensions, particularly at Sts. 45 and 144. 



6. Biloculina elongata, d'Orbigny (F 6). 



Twelve stations: 27, 30, 45, 123, 126, 144, 148, 149; WS 33, 42, 113; MS 14. 



Never very common. Most frequent at St. 144, where the specimens were of a small 

 regular type, very Uke our British form. This small form is the usual type, but the 

 species attains a large size at some stations, notably Sts. 144 and 148. Occasional large 

 specimens are found at stations where the small type prevails. From St. 144 a large 

 specimen was received preserved in spirit, with a branching mass of protoplasm and mud, 

 extending from the orifice in lobose processes, its bulk largely exceeding that of the test. 

 Protoplasmic masses, extracted from spirit specimens obtained at this station and 

 stained, were found to be loaded with Diatoms taken in as food, but there was no mud in 

 this internal protoplasm. 



y. Biloculina patagonica, d'Orbigny (F 7). 

 Four stations: 27, 126, 140, 144. 

 Very rare always, the best specimens at St. 126. 



8. Biloculina anomala, Schlumberger (F 10). 



Five stations: 27, 45, 149; WS 25, 33. 



A few specimens appear to be referable to this species, so far as external character- 

 istics are concerned, but Schlumberger himself admits the difficulty of identification. 

 They are always uncommon. 



9. Biloculina pisum, Schlumberger. 



Biloculina pisum, Schlumberger, 1891, BGF, p. 569 (in the reprints p. 182), text-fig. 31, pi. xi, 

 figs. 81-3. 



Nine stations: 27, 123, 126, 140, 144; WS 66, 177, 314, 522. 



