294 PALEOZOIC PALEONTOLOGY. 
Remarks.—This species from the upper beds of the Coeymans lime- 
stone near Hainesville resembles the little shells from the Carbon- 
iferous faunas, to which the name Bulimorpha has been applied by 
Whitfield.* So far as the specimens are preserved, they seem not to 
be generically distinct from Carboniferous specimens, and may be 
referred provisionally to that genus. 
LOXONEMA? sp. undet. 
Plate XXNII., Figs. 9-10. 
Description.—Shell with a highly-elevated spire, apical angle about 
21°, volutions eight or more in number, regularly convex, gradually 
expanding, the suture moderately deep. Aperture not well preserved, 
but apparently subcircular in outline. Surface nearly smooth, but 
with a magnifying glass exceedingly-fine lines of growth may be 
detected. 
With the apex completed, the dimensions of a full-grown specimen 
are, approximately: length, 20 mm.; diameter of last whorl, 6.5 mm. 
Remarks.—More or less fragmentary specimens of this little shell 
are rather common in the higher beds of the Coeymans lmestone 
near Hainesville. In none of them is the apex of the spire preserved, 
so that the total length of the shell and the total number of volutions 
have never been observed. It is quite possibly an unnamed species, 
but better material should be available for comparison with other 
forms. 
PLATYCERAS GIBBOSUM Hall. 
Plate XXXII., Figs. 5-7. 
1859. Platyceras gibbosum Hall, Pal. N. Y., vol. HL, p. 323, pl. 59, 
figs. 6 d-g, 7 a. 
Description ‘Shell obliquely subovoid, with one or two closely- 
contiguous volutions at the apex, from which the last one expands: 
more or less rapidly, becoming ventricose in the middle and below; 
* Bull. Am. Mus. Nat. Hist., vol. I., No. 3, p. 74. 
