318 
NAUTILOIDEA. 
Sj>. Char. “ General figure arched, tapering ; surface ornamented 
with abont fifteen longitudinal ridges, crossed by many equal undu- 
lated membranaceous elevations ; section elliptical (nearly as in 
C. qitindecimale) ; septa apparently coinciding with the membrana- 
ceous risings ; siphuncle near the dorsal convex line.” (Phillij^s.) 
RemarTcs. This specimen is far too imperfect for any comparison 
of it to be made with other species ; more than half of it is buried 
in the rock, and what is visible has been much decomposed by 
weathering. 
Horizon. Middle Devonian. 
Locality. N’ewton Bushel, Devonshire. 
llepresented in the Collection by tbe specimen figured by Phillips 
(loc. cit.). 
Cyrtoceras? quindecimale^ Phillips. 
1841. Cyrtoceras, quindecimale,, Phillips, Pal. Foss, of Cornwall, Devon, 
and West Somerset, p. 114, pi. xliv. f. 216. 
1842. Cyrthoceratites quindecimalis, d’Archiac & de Yerneuil, Trans. 
Geol. Soc. ser. 2, vol. vi. p. 386. 
1849. Cyrtoceras quindecimalis,, d’Orbigny, Prodr. de Paleont. Stratigr. 
vol. i. p. 53. 
1852. Cyrtoceras quindecimale, Giebel, Fauna der Vorwelt, Band iii. 
Abth. i. p. 205. 
S]p. Char. “ General figure arched and regularly tapering ; surface 
ornamented with fifteen longitudinal ridges and furrows, crossed by 
annular membranaceous ridges, of which each fourth is more promi- 
nent than the others ; section elliptical, the shorter axis being in the 
plane of inflexion, with diameters as 67 : 100 ; septa generally con- 
cave ; siphuncle small, near the dorsal or convex line of the flexure.” 
{Phillips.) 
Remarhs. The specimen in the Collection referred to this species 
is a small fragment, 13 lines long, 5 lines in diameter at the broader 
end, and 2 lines at tbe narrower ; the ornamentation, which can only 
be obscurely made out, owing to the bad preservation of the speci- 
men, consists of longitudinal ridges crossed by waved imbricating (?) 
striae. The section is transversely elliptical. All the characters 
seen agree very well with Phillips’s figure. 
Horizon. Middle Devonian. 
Locality. 17ewton Bushel, Devonshire. 
Eepresented in the Collection by a single specimen presented to 
the Museum by J. E. Lee, Esq., F.G.S. 
