119 



Greatest breadth about nine-tentlis of an iocli. 



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 Oornu of Born is 

 said to be a malformation of Helix aspersa, Mull. ? 



TuRRiTELLA CONCAVA. — 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 iEQUALis. — 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 MULTiSTRiATA. — 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 EUiottt for a much 



