86 DEVONIAN FAUNA. 



Bohemian shell is much more closely coiled, and increases much less rapidly, 

 and the transverse striee are much more numerous and smaller than are the 

 longitudinal. 



3. Trochoceras pulcheerimum, Whidborne, sp. PI. IX, figs. 2 — 4. 



1889. Ctetoceeas pulcheeeimum, Whidb. Greol. Mag., dec. 3, vol. vi, p. 29. 



Description. — Shell medium-sized, highly ornamented, very much recurved so 

 as to form nearly, if not fully, a volution ; tapering slowly. Back and sides 

 slightly convex, meeting in a blunt angle at the elbow, which is ornamented with 

 a row of numerous rounded nodes, set transversely, and continued in an indistinct 

 bulge on the back and sides. Surface, including nodes, covered by a fine network 

 of numerous longitudinal and transverse lines, of which the longitudinal are the 

 strongest, and the transverse rather the most numerous. Chambers rather broad. 



Size. — The state of the specimens does not permit accurate measurements. 



Localities. — There is a specimen from Lummaton in my Collection, and 

 another probably from the same place in the Battersby Collection in the Torquay 

 Museum. In Mr. Vicary's Collection is a specimen from Wolborough. 



BemarJcs. — All these specimens are fragmentary, but they appear to belong to 

 a sufficiently distinct form, which is defined by the row of numerous transversely- 

 elongate nodes. It thus is intermediate between Tr. Vicarii, in which these nodes 

 are much fewer and more erect, and are set longitudinally, and Tr. obliquatum and 

 Tr. reticulatum, in which the more or less prominent and numerous transverse ridges 

 show little or no signs of carrying any nodes. 



4. Trochoceras obliquatum, Phillips^ sp. PI. IX, figs. 5, 5 a, 5 &, 6, 6 a. 



1841. CxETOCEEAS OBLIQUATUM, Phil. Pal. Foss., p. 115, pi. xlv, fig. 218. 

 1841. — NODOSUM, Phil, (not Bronn). Ibid., p. 116, pi. xlvi, fig. 221. 



1844. Gteoceeas cancellatum, F. Romer. Ehein. Ubergangsg., p. 80, pi. vi, 



figs. 4 a — c. 

 1852. — — Sandb. Verst. Ehein. Nassau, p. 138, pi. xiii, 



figs. 2, 2 a. 

 1852. — quadeato-clatheatum, Sandb. Ibid., p. 138, pi. xv, figs. 



Q,Qa. 

 1888. — obliquatum, Etheridge. Foss. Brit., vol. i, Pal., p. 167. 



1888. — NODOSUM, — Ibid., vol. i, Pal., p. 167. 



