FORAMINIFERA — HEUoN-AI.LEN AND EARLAND. 7:^ 



;in elementary (•luiracter. Siufessive chaiiibeis, two or three in number, occupying 

 more than half, and up to two-thii'ds of a convolution. Broadest at mid-chamber 

 length nnd navniwint!: towards the apertuic. which is furnished with a thickened lip, 

 and a ludiuientary tooth. In the megalospheric form the primordial chamber 

 projects as a clear Initton in the middle of the flattened disc. The microspheric 

 form has not been found. 



The nearest ally of the .species would be 0. tumidulum. Bradv. with wliicli 

 our form agrees in the rounded shape of the peripheral margin, but differs in 

 the greater length of the latter chambers, which, by occupying more than half 

 of the circumference, destroy the .spiroloculine plan of Brady's species. It may 

 be regarded as a connecting link between Planispirina exigua, Brady, and 0. 

 tumidulum, Brady. The presence of the oral tooth indicates its spiroloculine 

 affinity. Size :— -30 - -40 nun. in diameter; -05 mm. in thickness. 



Rare and small at Station 3. moi'e numerous and well-developed at Station 6. 



(Note.— Rhumbler (!{.. U»09. etc., FPE. 1909. pi. ix. fig. 18) figures a small 

 OpJifhcdmidium, without any specific name being given in the text, which closelv 

 resendjles our form.) 



PLANISPIRINA, Seguenza. 

 59. Flamspirinn cliarensis. Heron- Allen & Earland. 



Plankpirina cliarensis. Heron-Allen and Earland. 191-3. CI. p. 35. pi. il, figs. 7, 8. 



Station 6. 



Two specimens presenting the characteristic small aperture of the type, but 

 in one case more convex than the type, and so approaching P. auriculaia, Egger. 



SuB-F.\MiLY FISCHERININAE. 



FISCHERINA, Terquem. 

 t)0. Fischerina he.lix, Heron- Allen and Earland. 



Fischerina helix, Heron-Allen and Earland. li)U, etc., FKA. I'.tl.j, p. .591. pi. xlvi. figs. ll)-ll. 



Stations 4. 6. 



A few specimens, smaller than the original type, but exhibiting all the 

 characteristic features. 



Sub-Famha- PENEROPLIDINAE. 



CORNUSFIRA. Schultze. 



(51. Cornuspira foliacea (Philippi). 



Orbis foliaceus, Philippi, 1844, EMS. p. 147, pi. xxiv, fig. 25 (error for 26). 

 Carnusfira foliacea, Heron- Allen and Earland, 1914, etc., FKA. 1915. p 592. 



Stations (5, 2(i, 53 ( + K. I.). 



Occurs in two forms, the original figure of Philippi, in which the final whorl 

 is not very much broader than its predecessors, and in the thin compressed foi'm 



VOL. VI. L 



