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Greatest breadth about nine-tenths of an inch. 
This very remarkable shell was sent to me for examination by 
Mr. Elliott; who has found but a single specimen ; it must there- 
fore be considered very rare. 
On a first view I was inclined to refer it to the genus Vermetus, 
in consequence of the separated nature of its volutions, and the 
broken apex of the spire, but a more careful examination exhibited 
the broad rugous groove, analogous to that in the umbilicus of 
many shells, and seemed to show its more close alliance with the 
present genus. 
Can this be a monstrosity of a Natica, as the Cornu of Born is 
said to be a malformation of Helix aspersaj Mull. ? 
Turritella concaya. — Shell subulate, white ; volutions more 
than ten, concave in the middle, and sculptured with from two to 
four obsolete, impressed revolving lines, and with an apicial and 
and basal band of about fifteen longitudinal undulations on each 
volution ; the basal band passes round the middle of the body 
whorl ; suture very slightly impressed, interrupting the continuity 
of the undulations in the adjacent bands; canal rather prominent. 
Length eleven-twentieths of an inch ; greatest breadth less than 
one-quarter of the length. 
For this species I am indebted to Mr. Stephen Elliott, of 
Charleston. 
Turritella ^qualis.— -Shell subulate, white ; volutions ten, 
each with about twenty-two transverse, elevated, obtuse, equal 
lines, with interstitial grooves of the same diameter; suture dis- 
tinct, impressed ; aperture rounded at base, and destitute of any 
distinct emargination. 
Length one-fifth of an inch. 
ScALARiA MULTI STRIATA.- — Shell tapering to an acute apex ; 
white ; whorls eight ; costa regular, equidistant, moderately ele- 
vated ; altogether wanting on the three terminal whorls ; inter- 
stitial spaces with very numerous, approximate, impressed lines ; 
aperture oval. 
Length about one-half of an inch. Inhabits the Southern 
coast. 
I obtained two specimens of this shell on the coast of East 
Florida, and I am indebted to Mr. Stephen Elliottt for a much 
