143 



culari-ovatd, intus nigro-marginatd ; columelld brevi, tereti, extus 

 reflexd. 

 Altit. 8, diam. 5, altit. aperturse 3|- lin. 

 Hah. Panama (found on the rocks, half-tide, Cuming). 

 This species differs by its aperture so much from the other species 

 of Littorina, and so nearly resembles a Bulimus, that I am very 

 doubtful whether it be placed in its right genus. 



December 23, 1845. 

 No Meeting was held. 



