246 Messrs. Parker, Jones, and Bi-ady on 



limbatc septa, and strongly tuberculate flattish centre, like 

 some varieties of C. cassis. The margin is bluntly dentated 

 by the projecting septal ribs ; there is no carina. It will be 

 well to recognize this as a subordinate suborbicular fomi of 

 C. cassis. 



131. Cristellaria elegans, DT)ib. V\. XI. fig. 103. 



" Litmis elcf/ans;'" Soldani, Testae, vol. i. pt. 1. p. (U, pi. iJG. fig-. Q. 

 D'Orb. op. cit. p. 293. no. 24. 



" Ilab. Fossil at Coroncina." (Xear Sienna, Soldani.) 



The specimen figured by Soldani is not a very good one ; 

 it a])parently represents a shell with somewhat thinner edge 

 than the last named, and witli the posterior angles of the 

 chambers exserted, but not otherwise differing materially 

 from it. The name C. tuberculata may well cover wider 

 distinctions than exist between these two forms. 



132. Cristellaria papulosa^ D'Orb. PI. XI. fig. 98. 



"Nautilus papilloms y^ Soldani, Testae, vol. i. pt. 1. p. 66, pi. 59. fig. ««. 

 D'Orb. op. cit. p. 293. no. 25. 



" Ilab. Fossil at Coroncina." (Near Sienna, Soldani.) 



A minute and probably a young shell. It belongs to the 

 spinous and tuberculate series, of which Cristellaria rostrata, 

 Montfort, sj)., may be taken as the best developed type. 



133. Cristellaria (Saracenaria) Italicay Defrance. 



PI. X. fig. 79. 



"Nautili (Seminula) tricostulati •,'^ Soldani, Testae, vol. i. pt. 1. p. 62, 

 pi. 53. figs. A, B. D'Orb. op. cit. p. 293. no. 26. 



" Hah. Living in the Adriatic, near Rimini ; fossil in the 

 neighbourhood of Sienna." (Mediterranean and fossil at San 

 Quirico and Sienna, Soldani.) 



See notes on D'Orbigny's Models uos. 19 and So. (Fig. A 

 is copied.) 



134. Nonionina mc/o, D'Orb. PI. XII. fig. 158. 



" Nautilus Mela ;" Soldani, Testae, vol. ii. p. S3, pi. 8. figs, zz, A, B, C. 

 D'Orb. op. cit. p. 293. no. 4. 



^^ Hal). Fossil at Coroncina." (Near Sienna, Soldani.) 



This is Xonionina j^ovipilioides, F. & M. sp. (Fig. G is 



copied.) 



135. Nonionina umhilicata, D'Orb. PI. XII. fig. 135. 



" NautilitK ;" Soldani, Testae, vol. i. pt. 1. p. 66, pi. 60. fig. 15. D'Orb. 

 op. cit. p. 293. no. 5. 



^^ I/ah. Living in the Adriatic, near Kimiui, auil in the 



