392 DISCOVERY REPORTS 



279. Cristellaria articulata (Reuss). 



Robulina articulata, Reuss, 1863-4, K.TF, p. 53, pi. v, fig. 62; pi. vi, fig. 63. 

 Cristellaria articulata, Brady, 1884, FC, p. 547, pi. Ixix, figs. 10-12. 



Six stations: 388; WS 71, 87, 88, 95, 97. 



A few specimens only, the best at 388 and WS 87 and 88. At nearly all the stations 

 the species is represented by wild-growing individuals such as are figured by Brady 

 (B. 1884, FC, pi. Ixix, figs. 1-4). 



280. Cristellaria crassa, d'Orbigny. 



Cristellaria crassa, d'Orbigny, 1846, FFV, p. 90, pl. iv, figs. 1-3. 

 Cristellaria crassa, Brady, 1884, FC, p. 549, pl. Ixx, figs, i a, b. 



Three stations: WS 97, 246, 408. 



Occasional specimens at each station. Very large and fine at WS 408, smaller, but 

 typical, at WS 97, quite in conformity with the Type in Paris. 



281. Cristellaria convergens, Bornemann. 



Cristellaria cofwergens, Bornemann, 1855, FSH, p. 327, p. xiii, figs. 16, 17. 



Cristellaria convergens, Brady, 1884, FC, p. 546, pl. Ixix, figs. 6, 7. 



Cristellaria convergens, Heron-Allen and Earland, 1916, FWS, p. 262, pl. xiii, figs. 13, 14, 



One station: WS 83. 



Two very small specimens only. 



282. Cristellaria angulata, Reuss (Plate XII, figs. 22, 23). 



Robulina angulata, Reuss, 185 1, PTO, p. 154, pi. viii, fig. 6. 



Cristellaria convergens {pars), (nan Bornemann) Heron- Allen and Earland, 191 6, FWS, p. 262, 



pl. xiii, figs. II, 12 (only). 



One station : WS 83 . 



A few small and weak specimens at this station, characterized by the straight peri- 

 pheral edges of the chambers, forming an angled margin to the test. They appear to be 

 nearer to C angulata (Reuss) from the Tertiary Shales of Upper Silesia {iit supra) than 

 to any other form with which we are acquainted. Maximum breadth, about 0-30 mm. 



They are identical with some of the specimens which we figured from the West of 

 Scotland {ut supra) under the name C. convergens, Born., but which we are now satisfied 

 cannot be retained under that name. 



Sub-family POLYMORPHININAE 

 Genus Polymorphina, d'Orbigny, 1826 



283. Polymorphina lactea (Walker and Jacob). 



Serpula lactea, Walker and Jacob, 1798, AEM, p. 634, pl. xiv, fig. 4. 

 Polymorphina lactea, Brady, 1884, FC, p. 559, pl. Ixxx, typical fig. 11 var. fig. 14. 



Five stations : 388 ; WS 83, 88, 89, 245. 



Few and usually very small, the best at WS 88. 



