MILIOLIDAE 47 



Not very common, except at WS 177, where many excellent and typical specimens 

 were obtained. Larger, but less typical, and rare at Sts. 126, 144. 



10. Biloculina globulus, Bornemann (F 11). 

 Three stations: 27; WS 27, 33. 



Very rare, mostly single specimens. 



Genus Flintia, Schubert, 191 1 



11. Flintia soluta, sp.n. (Plate I, figs. 1-4). 

 Two stations: 27, 144. 



Test large, porcellanous, smooth and highly polished; the last two chambers are 

 extremely inflated and separated by a space within which the ante-penultimate chamber 

 is exposed to a variable extent. Aperture large, with slightly recurved lip, furnished 

 with a broad incurved tooth having rounded extremities. Length up to 2-0 mm. In the 

 best specimen, the greatest width of the final chamber was 0-64 mm., of the penultimate 

 chamber 0-9 mm., while the width of the median space or ante-penultimate chamber 

 was only 0-24 mm. 



Very rare, a single specimen at St. 144, several at St. 27. No attempt has been made 

 to cut sections owing to paucity of material, but the internal structure is doubtless 

 regularly biloculine, the separation being confined to the final chambers. 



This is apparently the most rudimentary form of the genus, and its approximation to 

 Biloculina is so close that the specimens were at first regarded as mere abnormalities, 

 there being considerable difl^erences in the extent of exposure of the earher chambers, 

 even among the few specimens which have been found. The extremely inflated contour 

 shows some resemblance to Biloculina isobelleaua, d'Orbigny (F 9), but the aperture is 

 ver}' diff'erent. In this feature, and in the curvature of the edge of the chambers, there is 

 a close resemblance to Biloculina peruviana, d'Orbigny (F 8), from which it is probably 

 derived. 



Genus Miliolina, WiHiamson, 1858 



12. Miliolina seminulum (Linne) (F 12). 



Ten stations: 27, 123, 149, 660; WS 27, 28, 43, 177, 314, 522. 



Singularly rare, seldom more than one or two specimens at each station. 



13. Miliolina vulgaris (d'Orbigny) (F 14). 



Four stations: 27, 45 ; WS 27, 66. 



A single large specimen at each station, except at WS 66, where the example is very 

 small. 



14. Miliolina oblonga (Montagu) (F 15). 

 Four stations: 45, 144, 149; WS 27. 



Not uncommon at the three Discovery stations, where it is represented by a small thin- 

 shelled form. At WS 27, it is represented by a single large and normal specimen. 



