36 
being so very perfect and large ; besides it becomes instruc- 
tive as it much resembles, and has been taken for a serpula. 
SOLARIUM discoideum. 
TAB. XL — Upper right hand figures . 
Spec. Char. Discoid, outer edge sharply carioated ; 
edge of the umbilicus rounded, transversely 
■wrinkled ; aperture obliquely elliptical, pointed 
at each end . 
■ — 
At first sight, the discoid appearance of this shell, when 
the spire is downwards, is perhaps sufficient to distinguish 
it. It is a remarkably neat shell. The outer margin on the 
under side is remarkably plain and almost longitudinally 
canaiiculated. The outer edge is very acute. The upper 
side has a broadish margin, rather irregularly and obliquely 
striated transversely , and a little undulated, which is scarcely 
continued up the spire. The spire has six or seven whorles, 
and the whole though broadish is rather acuminated at the 
apex. The mouth has a long rhomboidal appearance, the 
outer edge being most acute. 
This shell, which is remarkably well preserved, was found 
in Barton Cliff, Hampshire, by the Rev. F. Iremongcr? 
by whom it was presented to me. 
SOLARIUM conoideum. 
TAB. XL . — Three middle figures • 
Spec. Char. Conical, smooth; Aperture quadratic 
gular; Umbilicus deep, narrow. 
This has apparently an almost square aperture, it is a 
higher cone than the former ones, and the middle of the 
volutions are a little depressed, otherwise it is exceedingly 
plain and smooth. 
Sent me from Portland several years since by Mr. Bryer, 
whose loss I always regret when his favours come to hand. 
On account of its peculiar characters, I think it claims a 
place here. 
The shell is almost worn away, and is chalky ; the cast 
of the umbilicus is figured at the bottom, which shows that 
the inner spiral edges were crenated ; this also indicates the 
height of the shell. 
