104 HIND : NEW CARBONIFEROUS NAUTILOIDS. 
EPHEPPIOCERAS WILDI, SP. NOV. 
(Plates IV., figs. 2, 2a ; V., figs. 1, 2 ; VI., fig. 1.) 
Nautilus cyclostomus, pars Wild, 1892, Trans. Manch. Geol. 
Soc, Vol. xxi., p. 397, PI. 2, fig. 2. 
Specific characters. — Shell of medium size, globose, not 
rapidly expanding, involute. Whorls about three, the inner 
almost entirely covered by the succeeding one. Umbilicus deep, 
infundibuliform, its margin rounded. The periphery is broadly 
convex, somewhat flattened at its middle third. The sides con- 
vex. The chambers are reniform in section, and comparatively 
large, the suture has a well marked ventral saddle. The body 
chamber is elongate, somewhat depressed, and expanded from 
side to side at the aperture, which possesses a strong and well 
marked hjrponomic sinus. The siphuncle is large and median. 
The surface of the shell is almost smooth, but fine lines and 
striae of growth are visible when the surface is viewed with the 
low powers of a microscope. Shell of moderate thickness, com- 
posed of several layers. 
Localities. — The horizon of the Bullion Coal, Carre Heys, 
Colne ; Burnley and Halifax ; Shore near Littleborough ; and 
Sholver, near Oldham. 
Dimensions. — A complete specimen in the Kay Shuttle worth 
collection in the Museum of the Manchester University measures : 
Greatest diameter, 107 mm. 
Length of body chamber, 138 mm., on the curve at the 
side. 
Breadth of the body chamber, 83 mm. 
Observations. — This species is represented by a number of 
examples of the body chamber, and three fairly complete speci- 
mens, in the Manchester Museum of the Manchester University, 
and I am indebted to Prof. Boyd Dawkins for permission to study 
them. I have in my collection two specimens of the body chamber 
and one showing in addition a part of the inner whorl. 
Mr. Wild figured the body chamber op. supra cit., and 
referred the species to Nautilus cyclostomus, Phillips, from which 
it is at once distinguished by the deep central saddle in the suture, 
