KODOSARIN^. 58 



NoDOSAKTA SiMONiANA, Terfpiem, 1858. Mem. Acad. Metz, Annee xxxix, p. ^iS7, pi. 1, 

 figs. 4 a, b. 



— PRIMA, Id. lb., p. .589, pi. 1, figs. G a, h. 



— EADICULA, TViUinmson, 1858. Rec. For. Gt. Br., p. 15, pi. 2, figs. 36—38. 



— NANA, Reiiss, 1860. Sitz. Akad. "Wien., vol. xl, p. 35, pi. 1, fig. 6. 



— LONGICAUDA, Parker and Jones, 1860. Quart. Journ. Geol. Soc, vol.xvi, 



p. 302; 1862, in Carpenter's Introd., Append., p. 310. 



— — Brady, IS64. Trans. Linn. Soc, vol. xxiv, p. 473. 



— scALAaTS, F., J., and Brady, 1865. Ann. Nat. Hist., 3rd ser., vol. xv, 



p. 227. 

 - — — Parker and Jones, 1865. Phil. Trans., vol. civ, p. 340, pi. 16, 



figs. 2 a—c; pi. 18, fig. 13. 



— ANNULATA, Costa (n. d.) Foram. Foss. Terz. Messin., p. 13, pi. 1, fig. 16. 



Cliarncterf!. — Shell straight, generally composed of from two to five chambers. Second 

 cham1)er often smaller than tiie first, otherwise each succeeding chamber larger than that 

 immediately }3receding it. Chambers ventricose. Ornamentation, a number of neat parallel 

 costse, generally continuous from end to end of the shell. Pseudopodial aperture at the 

 summit of the elongated neck of the ultimate segment, and often lipped. 



This is a common variety of Nodosaria, of altogether feebler growth, and having fewer 

 chambers, than N. rcq)hanii(s ; the shell, too, is thinner and more hyaline. The specimen 

 from which our figure is taken is a very small, two-chambered, unique individual from the 

 Bridlington Crag, in Mr. H. C. Sorby's collection. 



N. scalaris is the most common recent Nodosaria, and it is found sparingly in all 

 temperate and tropical seas. Its geological distribution is similar to that of N. rapliani's, 

 Ijeing known in the Secondary formations, and occurring in various strata up to the 

 later Tertiary clays, in which it is not uncommon. 



Subgenus — Dent.vlina, D" Orhigny. 



Orthoceras, Gualtieri, Martini. 



Nautilus, Linne, Schrdter, Batsch, Gmelin, Turton, Montagu, Maton and Racleetf, 



Pennant, Billwyn, Wodarch. 

 Orthocera, Lamarck, Brown, Fleming, Hanley, Thorpe. 

 Nodosaria, Lamarck, Bef ranee, D'Orbigny, Brown, Nilsson, Hisinger, Miinster and 



Roemer, Michelotti, Parker and Jones, Reuss, Carpenter. 

 Dentalina, D'Orbigny, Risso, Bronn, Ehrenberg, Macgillivray, S. TFood nud Morris, 



Reuss, Czjzek, Alth, Cornuel, Jones, Bayley, Eichivald, Sc]iidt:e, 



Bornemann, Parker and Jones, Williamson, Terquem, Neuegeboren, 



Karrer, Brady, Stacke. 



Geveral characters. — Shell awl-shaped, subcylindrical, tapering, curved ; composed 



