thf Xoimnrfahtrr of t/ie Foramutifcrn. l,j!J 



various autliors, in our ' Monoi^raph of the Foraniinil'era of the 

 ('rajj^.' The oldest name ^iveu to this variety was Lamarck's 

 " Xodosaria dental ina^' and apt enough with that (juasi- 

 generie prt-tix ; hut the iueouveiiienee of the trivial heiui^; tlic 

 same as the sul)i;eneric name, and the wide acceptance of 

 D'Orbigny's term, have inchu-ed us to retain the hitter, 



21. Xodosaria [DentaJlna) ohliqua, D'Orh. PL IX. fi.jj:. 47. 



" Drthocoraa iiUortum ;" Soldani, Testae, vol. i. pt. '2. p. 08, pi. lOo. <ig. T'". 

 I)'C)rb. oj). cit. p. 254. uo. 30. 



'^ Halt. Recent in the Adriatic." (Mediten-anean or Adriatic, 

 Soldani.) 



See note on the same variety in our paper on the " Models " 

 (Ann. N. H. ser. 3. vol. xvi. p. 19). We ought to have there 

 added that the trivial name had been preoccupied by Linne 

 for the Deutaline form of X. Ra/dianiis {=D. Cuvieri^ D'Orb.). 



D'Orbigny's reference to another of Soldani's figures (pi. 

 107. ^g. ,f) is obviously an error. 



22. Xodosaria {DentaUna) arcuata, D'Orb. PI. IX. fig. 49. 



" Urthoceras intortitm mammillare ;" Soldani, Te.stac. vol. i. pt. 2. p. 92, 

 pi. 97. fig. ee. D'Orb. op. cit. p. 254. no. 38. 



" ITab. Recent in the Adriatic." (Mcditcn-anean, Soldani.) 



A much-curved, smooth Dent(dina, with the chambers set 

 on very obliquely ; the ehaml)ers inflated and distinct on the 

 convex side of the shell, but gradually thinning towards the 

 concave margin* In Soldani's figure the shell appears to 

 be bordered by a smooth even carina on the concave side. 



23. Xodosaria {DentaJina) carinata, B'Orb. PI. IX. fig. 50. 



"Orthoceras ohliquum ;" Soldani, Testae, vol. i. pt. 2. p. 98, pi. 105. fig-. N. 

 D"Orb. op. cit. p. 255. no. 39. 



" Ilah. The Adi-iatic Sea." (Mediterranean or Adriatic, 

 Soldani.) 



A somewhat similar variety to the last {D. arcuata) ; indeed, 

 if we do not y^lace tlie two under the same trivial name, it is 

 only from the desire to give our author the benefit of a doubt. 

 It is a long, slender DentaUna, with a large number of very 

 oblique chambers, and an apparently w^ell-defined carina of con- 

 siderable width running the whole length of the concave side. 



24. Xodosaria {DentaUna) scorpiurus, Montfort. 

 PI. IX. fig. 29. 



" ()rthocera.s ?" Soldani, Testae, vol. i. pt. 3. p. 239, pi. 1G2. fig. K. 

 D'Orbigny, op. cit. p. 255. no. 40. 



'' Ilah. Recent in the Adriatic." (Mediterranean, Soldani.) 



