Nomenclature of the Foraminifera. 27 



LiVRAISON S""^. 



Model no. 51. Nodosaria [Glandulina] Glans*, D'Orb. 

 Page 252, no. 2. 



Hab. Adriatic ; rare. PI. I. fig. 30. 



The finely striated variety of G. Icevigata, D'Orb. Batsch 

 figures this, together with the primary elongated Nodosarian 

 form, as Nautilus comatus. (Sechs Kiipfertaf. pi. 1. figs. 2a-d.) 



Model no, 52. Nodosaria [Mucronina] Hasta, D'Orb. 

 Page 256, no. 49. 



Hah. Adriatic. PI. I. fig. 29. 



A carinate, finely striated Nodosarian, of the straight type. 

 Reuss refers to this Model as a Frondicularia — a judgment in 

 which we cannot agree. Its straight septa and lateral keels 

 indicate rather its Linguline afiinity ; besides which, it is more 

 elongated in contour than is usual in Frondicularia. It is quite 

 out of the question to draw a distinct line between these two 

 subgenera; but in this case there is no room for doubt as to the 

 nearest relationship. 



Model no. 53. Rimulina glabra, D'Orb. Page 257, no. 1. 



Hab. Adriatic. PI. I. fig. 37. 



An oblique, robust, somewhat compressed, few-chambered 

 shell, with the aperture taking the form of a long slit down the 

 edge of the large terminal chamber. Type, Nodosarina Raphanus. 



Model no. 54. Vaginulina elegans, D'Orb. Page 257, no. 1. 



Hah. Adriatic. PI. I. fig. 33. 



A beautiful limbate Vaginulina, with the septal lines thickened 

 by exogenous deposit of clear shell-substance. 



Model no. 55. Marginulina glabra, D'Orb. Page 259, no. 6. 



Hab. Fossil near Sienna. PI. I. fig. 36. 



A common form, not coiled enough to be a Cristellaria, and 

 not well enough nourished, one may say, to be enriched with 

 thickened shell-matter and ribs such as we see in Marginulina 

 Raphanus, the well-grown type. 



Model no. 56. Pavonia flabelliformis*, D'Orb. Page 260, no. I, 

 pi. 10. figs. 10,11. 



Hah. Madagascar. PI. I. fig. 22. 



This is possibly a misprint for Pavonina. We have already 

 noticed it in speaking of the species illustrated by figures in 

 D'Orbigny's Memoir. It may be an Orhiculina. 



