560 MESSES. E. HEROlNr-ALLEN AND A. EAELAND ON THE 



16 Stations. 



Universally distributed, but never abundant. Good and typical specimens at 

 Stns. 7, 9, 13, and ■? X. At the other Stns. the specimens are, as a rule, weak, 

 passing into the allied forms M. valvularis (Reuss) and M. dilatata (d'Orbigny). 



31. Miliolina seminuda (Reuss). 



Quinqueloculina seminuda Reuss, 1866, FABS. p. 125, pi. i. fig. 11. 



Terquem, 1878, FIR. p. 76, pi. ix. (xiv.) fig. 8. 

 Miliolina subrotunda (Montagu), var., Wright, 1885-6, BLP. p. 319, pi. xxvi. fig. 5. 



„ seminuda Earlaud, 1905, FRS. p. 195. 



„ „ Heron-Allen & Earland, 1913, CI. p. 27. 



6 Stations. 



Poorly represented and none of the specimens very typical, most of them being 

 nearer to M. circularis and M. rotunda than to the subrotunda group. Some con- 

 fusion has arisen in the synonymy of the species, ovdng to the fact that Terquem 

 claimed its authorship in 1878, ignoring Reuss's earlier figure and description. 



32 [a). Miliolina webbiana (d'Orbigny). 



Triloculina ivebbimia d'Orbiguy, 1839, FIC. p. 140, pi. iii. figs. 13-15. 



Miliolina fichteliana Brady, 1884, FC. p. 169, pi. iv. (ig. 9. 



Quinqueloculina suborbicularis Sclilumberger, 1893, MGM. p. 73, pi. ii. figs. 63, 64, pi. iii. 



fig. 67, text-figs. 26-38. 

 Miliolina suborbicularis Millett, 1898, etc., FM. 1898, p. 502, pi. xi. fig. 13. 



33(7^). Miliolina iicliteliana (d'Orbigny). 



Triloculina fichteliana d'Orbigny, 1839, FC. p. 171, pi. ix. figs. 8-10. 



34((?). Miliolina siiborMcularis (d'Orbigny). 



Triloculina suborbicularis d'Orbigny, 1826, TMC. p. 300. no. 12. 



d'Orbigny, 1839, FC. p. 177, pi. x. figs. 9-11. 

 Miliolina suborbicularis Heron-AUen & Earland, 1908, etc., SB. 1911, p. 304. 



10 Stations. 



These three species, all described and figured in the same year by d'Orbigny, are so 

 closely related that the question of their specific separation can only be entertained 

 for purposes of taxonomy and convenience when dealing with material which contains 

 all three types in considerable quantities. 



Taking M. weihiana as the strongest and most characteristic form, it may briefly be 

 described as a sulcate form of M. subrotunda. M. fichteliana is characterised by 

 much more turgid chambers and feebler striation, nearer, in fact, to M, circularis. 

 M. suborbicularis is, as it were, midway between the two, but very faintly striate, the 

 chambers being but slightly turgid and markedly embracing. The synonymy of the 



