180 
BELEMNITES acutus. 
TAB. DXC .—Jigs. 7. 8. & 10. 
Spec. Char. Conical, terminating in an acute point, 
round ; cavity very deep, central. 
Syn. B. acutus. Miller , Geol.Trans . Sdseries. vol. II. 
p. 60. pi. VIII./. 9. 
A regularly conical smooth shell ; very slightly com- 
pressed on the sides, and without any furrow. From 
the great diameter of the cavity at the base, we judge it 
to be very deep. 
B. acutus of De Blainville is certainly not the same 
species ; that has a distinct longitudinal furrow, and is 
more cylindrical. M. De Blainville has probably been 
misled by Mr. Miller’s having quoted, with a query, a 
figure in Luid that does not agree with his own. 
Both our figures are taken from specimens in Mr. 
Goodhall’s cabinet : fig. 7. was found at Weston, near 
Bath ; and fig. 10. in Shorne Cliff, Charmouth. The latter 
shows some curious marks produced by decomposition 
and partial exfoliation of the outermost crust : the shell 
is also split in two or three parts by the expansion of 
some substance within its cavity. 
