Manchester Memoirs, Vol. Ixii. (191 7) 69 1 



147. Nodosaria (Dentalina) verneuili, d'Orbigny. 



Dentalina verneuili, d'Orbigny, 1846, Foram. Foss. Vienne, p. 

 48, pi. II, figs. 7, 8. 



Rather rare. The specimens have very thick walls, par- 

 ticularly those collected at Gathering 4, in the transverse section 

 of which there can be recognised nine layers of whitish shell- 

 substance alternating with as many rings of darker hue and of 

 less thickness* 



(The enormously thick walls built up of concentric layers 

 of shell substance are very noticeable. The identity of this 

 species as apart from N . pauperata d'Orbigny appears to us to 

 be somewhat problematical, it is always microspheric whereas 

 N '. pauperata is always megalospheric. Apart from this distinc- 

 tion the two forms appear to be identical in structure and 

 design.) 



148. Nodosaria (Dentalina) farcimen (Soldani.) 



Ortkoceras farcimen, Soldani, 1791, Testae, vol. I, pt. 2, p. 98,. 



pi. CV/fig. o. 

 Nodosaria farcimen, Brady, 1884, Chall. Rep., p. 498, woodcuts, 



13a, b, c; and pi. LXII, figs. 17, 18. 



Very rare, and with segments not quite so much inflated 

 as in the typical form. 



149. Nodosaria (Dentalina) rostrata, Seguenza. 

 PI. IV, fig. 1. 



Dentalina sp., Costa, 1855 (1857), Mem. Ace. Sci. Napoli, voL 



II, pi. I, fig. 32. 

 D. rostrata, Seguenza. 1879-80, Atti. R. Ace. Lincei, (3), vol. 



VI, p. 221/ 



This species is rare. Costa figured a specimen from the 

 Tertiary Marl of Messina but did not describe or even name it, 

 which duty was performed twenty-five years later by Seguenza 

 in his work on the Tertiary Formations of the Province of 

 Reggio (Calabria) Italy. 



(Except for the produced rostrum to which attention is 

 called by Seguenza, the species does not appear to differ from 

 N. communis.) 



