83 
NAUTILUS expanses. 
TAB, CCCCLYI11. — fig. 1. 
Spec. Char. Subglobose, umbilicated, finely 
striated ; umbilicus small ; sides of the 
aperture expanded. 
A. small Nautilus with sharp curved striffl following the 
lines of growth ; the aperture is so much expanded 
laterally with the columella, as to make the axis con- 
siderably longer than the diameter; the umbilicus is 
small and nearly cylindrical : the septa cross the striae, 
and are nearly straight edged at the front. 
Found at Hamsey, by G. A. Mantell, Esq. whose 
assiduity in collecting and describing, and liberality in 
supplying specimens has added much to our knowledge 
of the Chalk and Chalk-marl fossils. This shell bears 
some resemblance to the young of Am. elegans, tab. 116, 
but I think can hardly have been mistaken for it. The 
specimen in our Museum, is a cast in Chalk-mark 
