History at Padua, a piece of the same species, under the denomination 

 of Cornu vacdnum. I am, however, of opinion, that the ceratomor- 

 phous fossil of Rogosniza, as well as the other at Padua, are Orthoceratiles, 

 of which the species are now lost, or are the produce of more distant 

 seas. You will probably say, that the name of Orthoceratites is but ill 

 suited to a recurvous fossil, and I agree with you; so you may call it, 

 if you please, Campilocerates." Travels into Dalmatia, p. 159. 



Fossils, which I conjecture are of this genus, but of a different species 

 from those described by Picot, exist in the neighbourhood of Verona, 

 The figures of these fossils, given by Spada, in his Catalogi Lapidum 

 Veronensium Mantissa, Tab. i. and n. agree very closely with some of 

 those given by Picot. They are thus described by Spada : " Lapides 

 monstruosi basi subrotunda, in medio concava ; margine piano, latitu- 

 dine unc. v. longitudine unc. vn. eras. unc. n. jumenti ungulam reprae- 

 sentantes, in conum fastigiati, tribus praesentim fasciis antiqua parte 

 horizontaliter distmcta, quarum unaquseque verticalibus lineis striata est, 

 postica vero lineis pariter verticalibus donata." 



" Reperiuntur etiam alii lapides supradictis fere similes truncati, et 

 ungula destituti, fasciis lineisque horizontalibus insigniti." 



The former of these, in Spada's figures, bears a very close resem- 

 blance to a horse's hoof; and the latter very nearly resembles the largest 

 of the hippurites figured by Picot. / 



The specimen, Plate VIII. Fig. i, copied from Picot's work, P.ate vn. 

 fig. i, shows one of these fossils of a frequent form, but of a smaller 

 size than common, some of these fossils being at least four times the 

 size of this specimen. In this figure the operculum is also seen, with its 

 two openings. Some of these fossils are more of a cylindrical form, as 

 in Plate VIII. Fig. 5, from Plate n. Fig. 2, of Picot's work. In this 

 figure are shown, not only that part which is considered by Picot as the 

 siphunculus, a, but the septa, in nearly their natural situation, and the 

 ridges which project into the cavity. 



We shall now proceed to the examination of the belemnite a fossil 

 VOL, in, R 



