494 Descriptions and Notices of 



Cyclostoma auriculatum, D'Orb., Sovvb., Thesaur. Con- 

 chyl. No. 171, plate 31, fig. 277. C. bicolor, Gould. 



Animal, small, of a cartilaginous color and aspect ; the ten- 

 tacles, bright scarlet ; very sluggish. 



Found on La Carolina, St. Ana, Retiro, and Mt. Vernon 

 estates, in the woods and among recently planted coffee trees. 



Mr. Sowerby regards specimens which I sent him, as be- 

 longing to this species. But I certainly never saw any with 

 an aperture resembling his figure. It more nearly resembles 

 his fig. ISl, which he calls a variety of C. tortum. I rest for 

 the present, however, on his authority. 



Cyclostoma Sagra, D'Orb. Mo//. Je Caha ; Sowb., Thesaur. 

 Conchyl No. 166, fig. 279, 128. C. pictum, Pfeif. C. ma- 

 hogani, Gould. 



Animal, light dove color, smooth above, granulated at 

 sides ; tentacles, ferruginous ; very active. This shell appears 

 to vary much in size and form. Some are nearly cylindrical, 

 while others are ventricose. Some specimens from Sagua la 

 Grande are much larger than any I have seen figured or de- 

 scribed. '' They are widely diffused over all parts of the 

 island I have visited. I do not think they climb trees, and 

 have found them mostly about stones." The motions of the 

 animal are so rapid that it seems almost to jump along. 



Cyclostoma interruptum. Sowb., Thesaur. Conchyl. 

 No. 141, fig. 150, 151. C. catenatum, Gould. 



I was deceived in this shell by its aspect of maturity when 

 possessed of only its single lip ; which was the case with all 

 the specimens collected for two years. Animal, light pea- 

 green, neck reddish, tentacles bright ferruginous, nearly car- 

 mine. When in rapid motion, "instead of proceeding direct- 

 ly ahead, with the shell steady, it rests the shell on the ground 

 until the body is extended as far as the shell will permit with- 

 out dragging, then by a sudden jerk throws the shell forward, 

 and so on alternately, much more rapidly than one would 



