the Nomenclature of the Foraniinifera. 243 



118. Rohidina nitida, D'Orb. PI. XII. %. 152. 



Soldani, Testae, vol. ii. App. p. 141, pi. 7. fiffs. zz, ZZ. D'Orb. op. cit. 

 p. 290. no. 22. 



^^ Hah. Fossil at Coroncina." (Near Sienna and San Qui- 

 rico, Soldani.) 



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

 gina. In the Siennese Tertiary clays and sands (described in 

 Quart. Journ. Geol. Soc. vol. xvi. ]:». 297 et seq.) Amj^histegma 

 occurs at Pienza,Montopoli,Castel-Arquato, and SanFrediano. 



119. RoluUna plicata, D'Orb. PI. X. fig. 80. 



" Hammonise subrotundae ;" Soldani, Testae, vol. i. pt. 1. p. 61, pi. 50. 

 fig. cc. D'Orb. op. cit. p. 290. no. 23. 



" Hah. Fossil at Coroncina." (Mediterranean, Soldani.) 



A small umbonate Cristellaria^ not separable from C rotu- 

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

 duced. 



120. Rohidina rotundata, D'Orb. PL X. fig. 92. 



"Nautilus Lenticula;" Soldani, Testae, vol. i. pt. 1. p. 66, pi. 60. fig. i/y. 

 D'Orb. oj). cit. p. 290. no. 24. 



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



A damaged specimen of a limbate Cristellaria calcar. 



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



"Litui crispati et orbicuU f Soldani, Testae, vol. i. pt. 1. p. 63, pi. 55. 



figs. A, C, E, G. 

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



no. 1. 



^^ Hah. Fossil at Coroncina." (Near Sienna and SanQuirico, 

 Soldani.) 



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

 Pharame perW^ of De Montfort), which differs from their 

 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 this 

 ground De Montfort's term (latinized) margaritacea may be 

 accepted. (PL 55. fig. A, is copied.) 



122. Cristellaria navicularis, Montfort, sp. PL XI. fig. 101. 



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

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



'■^ Hah. Fossil at Coroncina." (Near Sienna and San Qui- 

 rico, Soldani.) 



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



