MARGINULINA COSTATA. 235 



Characters. — A short, curved, partiall}^ spiral Nodosarine ; witli smooth, more 

 or less inflated chambers, not numerous, and enlarging rapidly in process of growth. 

 This little shell, which is very variable in its contours, feebly represents the far 

 more compact and symmetrical Cristellarise. 



Occurrence. — Marghmlina ijlahra has a wide geographical distribution, but appa- 

 rently has not been met with in high latitudes. Specimens have been taken from 

 depths ranging from 15 to 2740 fathoms. The geological range of the species is 

 extensive. Specimens have been found in the Lias of England and the Continent ; 

 in the Cretaceous formations generally, both English and foreign; in the London 

 Clay (Eocene), in the Oligocene of Germany, in the Miocene of Italy and Vienna; 

 and in the Pliocene of Piedmont and Garrucba (South Spain). So far as the Crag 

 is concerned, we have nothing to add to the record in Part I of the Monograph. - 



2. Marginolina COSTATA (Batsch), 1791. Plate I, fig. 21. {M. raphaims.) 



Part 1, 1866, page 70 {MarginiiUiia raphamis) ; Append. I and II, Tables, No. 46. 



Additional synonyms : 



Orthoceratia in longum striata, subeonica, &c., Soldani,^ 1791. Testaceogr., vol. i, 



part 2, p. 91, pi. xciv, figs, p, Q, x, r. 



Orthoceras Suhlihms, testa teres, striata. &c., Soldani, 1791. Ibid., p. 98, pi. civ, 



figs. F, G [= Marginulina suhlitims, 

 d'Orb.]. 



Nautilus (Oethoceeas) costatus, Batsch, 1791. Conchyl. Seesandes, p. 2, 



pi. i, figs. 1 a — g. 



MAEGi>fULiNA SUBLITUUS, cVOrhignij, 1826. Ann. Sci. Nat., vol. vii, p. 259, No. 9. 



— EAPHANus, Deshayes, 1830. Hist. Nat. Vers, vol. ii, p. 418. 



— — Ehrenberg, 1838. Abhandl. k. Akad. Wiss. Berlin for 



1838, p. 141, pi. i, fig. 2. 



— — Ctivier, 1836-46. Eegue Animal, vol. ix, p. 35 ; vol. x, 



pi. XV, fig. 10. 



— — Michelotli, 1841. Mem. Soc. Ital. Sci., vol. xxii, p. 279. 



1 Soldani suggests that some of the specimens figured as " m, n, &c.," [m — z ?] in plate xciv 

 might be such as with Linnsus would be termed '' Rapliani, Baphanistri, et Bapisiri." Soldani 

 thinks that figs, p, Q, and even t may be varieties of his " Orthoceras Corniculum." The nominal 

 references in 'Ann. Mag. Nat. Hist.,' September, 1S71, p. 163, and in the 'Challenger' Eeport, 

 p. 528, for " N, p, Q, E, X, T," are not quite correct. m, n, e, and v belong to Nodosaria 

 raphanus ; s to D. oMiqua ; t and z to iV". raphanistrum. 



31 



