LITUOLINAE 341 



95. Haplophragmoides subglobosum (G. O. Sars). 



Litiiola subglobosum, M. Sars, 1868, LUHD, p. 250; G.O.Sars, 1871, HF, p. 253. 

 Haplophragmium subglobosum, Brady, 1881, HNPE, p. 406. 



Haplophragttiium latidorsatum {nan Bornemann), Brady, 1884, FC, p. 307, pi. xxxiv, figs. 7, 8, 

 10, 14. 



Two stations: 230; WS 408. 



Very rare, the specimens are small and poorly developed. 



Genus Ammobaculites, Cushman, 1910 



96. Ammobaculites agglutinans (d'Orbigny). 



Spirolina agglutinans, d'Orbigny, 1846, FFV, p. 137, pi. vii, figs. 10-12. 

 Haplophragmium agglutinans, Brady, 1884, FC, p. 301, pi. xxxii, figs. 19-26. 

 Ammobaculites agglutinans, Cushman, 1910, etc., FNP, 1910, p. 115, fig. 176. 



One station : WS 408. 



Three rather roughly constructed individuals all of an elongate type. The Type of 

 Spirolina agglutinans is missing in Paris. 



97. Ammobaculites americanus, Cushman (Plate VIII, figs. 15-17). 



Haplophragmium fontinense , Brady {non Terquem), 1884, FC, p. 305, pi. xxxiv, figs. 1-4. 

 Ammobaculites americanus, Cushman, 1910, etc., FNP, 1910, p. 117, figs. 184, 185. 



Eight stations: WS 76, 98, 99, 109, 210, 215, 225, 408. 



The chief distinction between Cushman's species and Terquem 's H. fontinense 

 appears to be in the size, for the convexity shown in Terquem's figure, to which 

 Cushman draws attention, is not much greater than that often exhibited in his own 

 species. Many of the Discovery specimens are in fact quite strongly curved. The species 

 is neither widely distributed nor very abundant in the Falkland area, but very good 

 specimens are found at WS 76 and 225, identical in fact with Cushman's figure. 

 Equally good at WS 408, but using much finer material with correspondingly increased 

 perfection of finish. 



Genus Placopsilina, d'Orbigny, 1850 



98. Placopsilina cenomana, d'Orbigny (Plate VII, fig. 25). 



Placopsilina cenomana, d'Orbigny, 1850, etc., PP, vol. 11, 1850, p. 185, no. 758. 

 Placopsilina cenomana, Reuss, 1854, KO, p. 71, pi. xxviii, figs. 4, 5. 

 Placopsilina cenomana, Brady, 1884, FC, p. 315, pi. xxxvi, figs. 1-3. 



Ten stations: 51 ; WS 76, 77, 91, 92, 93, 225, 243, 246, 248. 



Generally distributed and often very abundant, notably at WS 225, where the stones 

 and pebbles were encrusted with it. The specimens are of a small, feeble, elongate type 

 such as are found in British seas. One or two larger individuals similar to those found in 

 tropical and sub-tropical seas have been noted, especially at 51. At WS 91, a complete 

 specimen, detached from its support and revealing a chitinous floor was obtained. 



