244 Messrs. Parker, Jones, and Brady on 



tlie chambers take on the Flabelline character to a very con- 

 siderable extent. De Montfort copied Soldani's figure under 

 the name 8cortimus navicularis. Fig. C also, and others 

 figured by Soldani, show the Flabelline tendency. See also 

 fig. 86, which, however, is both limbate and tuberculate. 



123. Cristellaria cassis, F. & M. sp. PI. X. fig. 86. 



"Litui crispati et 07'biculi;" Soldani, Testae, vol. i. pt. 1. p. 63, pi. 56. 

 figs. I, K, &c. &c. D'Orb. op. cit. p. 290. no. 3. 



" Hah. Living in the Adriatic, near Rimini ,• fossil at 

 Sienna." (Fossil at San Quirico and near Sienna, Soldani.) 



A full-grown limbate variety, with tubercles on the early 

 chambers. 



Figs. Lj M, N, 0, P, Q,&JR also represent C. cassis. 



See notes on Models nos. 44 and 83 ; and Ann. N. H. ser. 3. 

 vol. V. p. 115. 



124. Cristellaria Soldanii, D'Orb. PI. X. fig. 87. 



" Litui cnspati et orhiculi ;" Soldani, Testae, vol. i. pt. 1. p. 63, pi. 56. fig.H. 

 D'Orb. op. cit. p. 290. no. 4. 



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



Without tubercles, but with a limbate border to the outer 

 edge of each segment. Similar in general contour to C. con- 

 secta, no. 121 {margaritacea). 



125. Cristellaria nitida, D'Orb. PI. X. fig. 88. 



"Nautili Lituitati;" Soldani, Testae, vol. i. pt. 1. p. 64, pi. 56. figs. 0, P. 

 D'Orb. op. cit. p. 291. no. 4. 



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



Soldani's figures referred to by D'Orbigny are unsatisfactory 

 as affording a basis for a distinct name. They are somewhat 

 irregular suborbicular Cristellaria cassis, with a more or less 

 limbate septa and some scattered umbilical granules. 



126. Cristellaria marginata, D'Orb. PL XI. fig. 99. 



S. "Nautilus hystrix marginatus-" T. "Nautilus Echinus f Soldani, 

 Testae, vol. i. pt. 1. p. 64, pi. 57. figs. S, T. D'Orb. op. cit. p. 291. no. 7. 



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



Two subvarieties of C. calcar. Fig. S (like the next, 

 fig. S s) shows no segmentation, but has traces of umbilical 

 radiate limbation, and numerous widely scattered granules 

 over the round part of the shell. Thus it somewhat approaches 

 the better formed figs, qq, rr, pi. 59 (no. 114). Fig. T is an 

 orbicular rowelled C. calcar, with beaded septa, like Fichtel 



