the Nomenclature of the Foraminifera. 24.t 



lis. Robuh'ua nitiili, D'Orl.. I'l. XII. li- i:;L>. 



Soldani, Tostiip. v..l. ii. App. p. 1 H, pi. 7. (i^'s. zz, /.'A. DOrb. op. cit. 

 p. L'tlO. nu. '11. 



" Hah. Fossil at Coroncina." (Near Sienna and 8an (.^)ui- 

 rico, JSoldani.) 



This is from fossil shell-dust, and is probably an Amphiste- 

 f/f'na. In the Sionnesc Tertiary clays and sands (described in 

 Quart. Journ. Geol. Soc. \o\. xvi. p. 297 et seq.) Amj)hist('(jina 

 occurs at Pienza,Montopoli,Castel-Arquato, and !San Frediano. 



119. RohuUna pUcata, D'Ovb. IM. X. fig. 80. 



*' Ilftmmoniro subrotundfe ;" Sdklani, Testae, vol. i. pt. 1. p. Gl, pi. 50. 

 fijr. cc. D'Orb. op. cit. p. 2tK). no. 23. 



" Hab. Fossil at Coroncina." (^lediterranean, Soldani.) 



A small umbonate Cn'sfeUaria, not se])arable from C. rotii- 

 lata. The posterior angle of each chamber is .-somewhat pro- 

 tluced. 



120. RohuUna rotundata, D'Orb. PI. X. tig. 92. 



" Nautilus LenticulaC iSoldani, Testae, vol. i. pt. 1. p. GO, pi. 60. fig. yy. 

 D'Orb. op. cit. p. 290. no. 24. 



" IIcUj. The Adriatic." (Fossil near Sienna, Soldani.) 



A damaged specimen of a limbate Cristellaria calcar. 



121. Cristellaria consecta, D'Orb. PI. XL fig. 100. 



" Litui ci-ispati et orbicuU;"' Soldani, Testae, vol. i. pt. 1. p. 03, pi. 55. 



figs. A, C, E, G. 

 "Nautili Lituitatif Id. ibid. p. 64, pi. 57. fig. X. D'Orb. op. cit. p. 290. 



no. 1. 



" Hah. Fossil at Coroncina." (Near Sienna and San Quirico, 

 Soldani.) 



This is the Nautilus cassis, var. S, of Fichtel and Moll (" le 

 Pharame j)crW of De Montfort), which differs from tlieir 

 other varietal forms in the absence of beaded ornament on the 

 early chambers and over the sutural lines. A trivial name is 

 perhaps more convenient than the Greek letter ; and on tliis 

 gi'ound De jNIontfort's term (latinized) margaritacea may be 

 accepted. (PI. oo. fig. A, is copied.) 



122. Cristellaria navicularis, Montfort, sp. PI. XI. tig. 101. 



"Litui crispati et orbieuH;'^ Soldani, Testae, vol. i. pt, 1. p. 03, pi. 55. 

 figs. B, D. D'Orb. op. cit. p. 290. no. 2. 



" [Tab. Fossil at Coroncina." (Near Sienna and San Qui- 



rico, Soldani.) 



A subvarietal modification of C. cassis, F. & M., in whicli 



