273 
Gen us — CAMER-OCEE AS, Conra/.v . 
Cameroceras Phillipsii, L. G. de Konhich} 
PI. XXIV, Pig. 1. 
Orlhoceras latevcde, L. G-. de Koninck, 1813, Descr. Auim. Foss. Terr. Carb, Belg., p. 508, 
pj. 43, fig. 2 (non Phillips). 
This is an elongated, slightly conical shell, with a perfectly smooth 
surface. The se^^ta are slightly concave from the side of the aperture, and 
the distance between them nearly equals one- fourth of their transverse 
diameter. The sij)hnncle is very excentric, rather narrow, and placed at a 
short distance from the margin, in the form of a rosary, a characteristic 
common to the genus. 
Dimensions . — It seems that this species cannot attain a greater length 
than from fifteen to twenty centimetres. Its apical angle is thirteen degrees. 
Delations and Differences. — In 1813 I confused this shell with 
O. laterale, Phillips (the same as O. undulatum, Sowerhy), but it differs 
from it by the rounded form of its transverse section, by its horizontal septa, 
and above all by its small size. 
Horizon and' Localities. — This species is not very uncommon in the 
Upper Carboniferous Limestone at Vise, Air. Clarke found a single specimen 
at Chinaman’s Gully, in a hlackish-grey limestone, enclosing innumerahle 
fragments of stems of Crinoidea, and resembling the Pelgian limestone 
known as “ Petit granit.” It is associated with Spirifer hisulcatus, Clionetes 
papilionacea, Phillips, and Orthis resupinata, W. Alartiu. 
Genus — NAUTILUS, Dreynius. 
Nautilus subsulcatus, J. Phillips.^ 
PI. XXIY, Fig. 4. 
Nautilus suhsuleatus, J. Phillips, 1836, Geol. Yorkshire, II, p. 233, pi. 17, 
fig. IS, 25. 
„ sulcatulus, Idem, 1836, ibid., p. 250. 
' [See also R. Etheridge, Junr., Geol. and Pal. Q’land., 1892, p. 293.— W.S.D.] 
^ [Codonaulilus subsukatas. A. H. Eoord, Cat. Foss. Geplial. B.M. Nat. H'st., 1892, II, p. 121. — W.S.D.] 
