Vol. 56.] AN UPPER CAMBRIAN HORIZON IN THE MALVERNS. 259 



Subfamily NODOSABIINiE. 

 Nodosaria, Lamarck. 

 ? Xodosaria (Glandulina) sp. (PI. XV, fig. 5.) 



Cf. Glandulina pygmcea, Terquem, 1866, ' Foram. du Lias' 6 me Mem. (Acad. Imp. 

 Metz) p. 478 & pi. xix, fig. 6. 



It is obviously difficult to say with certainty to what genus or 

 subgenus this specimen belongs. Terquem's figure above quoted 

 seems to come nearest to it in outline. In our specimen only two 

 chambers are present, but in the Liassic specimen there are three. 



Xodosaria (Dentalina) abnormis ? (Keuss). (PL XV, fig. 6.) 



Dentalina abnormis, Reuss, 1863, Sitzungsb. k. Akad. Wissenscb. Wien, vol. xlviii, 

 pt. i, p. 46 & pi. ii, fig. 24. 



This specimen appears to belong to the Dentalina subsection of the 

 genus Nodosaria, and in outline is perhaps best matched by Eeuss's 

 D. abnormis. The apertural extremity is situated hardly far enough 

 to the side for a typical Marginwlina, although this would depend 

 upon the plane in which the specimen happens to be cut. As regards 

 Vaginulina, the chambers are probably too much inflated for it to 

 be related to that genus. 



Nodosaria (Dentalina) abnormis is known from Cretaceous and 

 Tertiary deposits. 



Marginulina, d'Orbigny. 



Margintjlina soluta (?) Reuss. (PL XV, figs. 7 & 8.) 



Margimdina soluta, Reuss, 1860, Sitzungsb. k. Akad. Wissenscb. Wien, vol. xl, 

 p. 206 & pi. vii, fig. 4. 



The two specimens (one fragmentary) here figured from the 

 Malvern shaly limestone approach the above-quoted form in general 

 outline : the suture-lines being nearly at right angles to the long 

 axis of the test, with the swollen initial, and subsequent full and 

 unequal chambers. M. soluta is known from the Cretaceous. 



Cristellaria, Lamarck. 

 CRISTELLARIA ACTJTAr/RICTTLARIS ? (F. & M.). (PL XV, fig. 9.) 



Nautilus acutauricularis, Fichtel & Moll, 1798, 'Test. Micr.' p. 102 & pi. xviii, 

 figs. g-i. 



In outline the Cambrian specimen resembles a Cristellarian of the 

 Or. acutauricularis type ; but the chambers are remarkably few in 

 number, there being apparently only four in the specimen under 

 notice. The specimen has a very perfect outline. 



Family ROTALIID^. 

 Subfamily SPIEILLIN7E. 

 Spirillina, Ehrenberg. 

 Spirillina Groomii, sp. nov. (PL XV, figs. 1, 10 & 11.) 



Test discoidal, convex on the superior, and concave on the inferior 



