274 
Nautilus suhsulcatus, var. J. de Carle Sowerby, 1840 , Trails. Geol. Soc. of London, 
V (2), pi. 40, fig. 7. 
55 5j Portlock, 1843, Geol. Pept. Londonderry, p. 405. 
55 35 L. G. de Koniiick, 1843, Descr. Anim. Loss. Terr. Carb. 
Belg., p. 548, pi. so, fig. G ; pi. 47, fig. 9 and pi. 49, fig. 4. 
„ {JDiscites) suhsulcatus, F. McCoy, 1844, Synop. Carb. Foss. Ireland, p. 19. 
,, suhsulcatus, A. d’Orbigny, 184G, Pal. Fuiv. Coq. et Moll,, I, pi. 48, 
fig. 1-G. 
55 55 A. d’Orbigny, 1850, Prod. Pal., I, p. 110. 
,, (Discites) suhsulcatus, J- Morris, 1854, Cat. Brit. Foss., p. 309. 
,, suhsulcatus ? , E. d’Eicbwald, 18G0, Lethaia Eossica, I, p. 1312, pi. 49, 
fig. 21. 
5, j, L. G. de Koniuck, 1873, Eecli. Anim. Foss., II, p. 110, 
pi. 4, fig. 10. 
The characteristics of the fragment which I have referred to this 
sjiecies are so clear and like those figures representing it that I have no 
donht as to its identity. It will be sufficient to compare the figure I have 
given with fig. 2, pi. 48 of d’Orhigny’s “ Paleontologie Universelle.” The 
external shape and that of the septa is exactly the same in both cases, 
hilt as the specimen is too imperfect to he described, I have been obliged 
to go for details to the works of the Authors I have cited in my list of 
synonyms. 
Horizon and Localities. — Phillips was the first to describe this species, 
and to distinguish it from N. sulcatus, Sowerby. He found it in the Upper 
Carboniferous Limestone at Bolland, Yorkshire. Portlock and McCoy 
recorded it in Ireland. I found it in the Carboniferous Limestone of Vise, 
and in shale of the same age at Bleibnrg, in Carinthia. The Australian 
specimen was found on the hanks of the Kama Biver. It is rare every- 
where. 
