492 Descriptions and Notices of 



Animal, white, with a dark line along the back of each 

 tentacle, one along middle of back, and a very fine one along 

 each cheek. 



Found in March, near Matanzas. 



Pupa (Siphonostoma) subula ? Ferus., Prodr. No. 508. 

 Hist, des Moll, plate 163, fig. 8. 



I am not quite sure that this is Ferussac's species, but it 

 must be very near it. The animal is a little rusty above, with 

 a pale slaty line along each tentacle. 



Found near Matanzas. 



Pupa (Cylindrella) crispula, Pfeif., Wiegm. Archiv. 



Found under a high precipice of limestone, near Chapeau's 

 Cave, on Mount Vernon estate, 



Helicina suBMARGiNATA, Gray, Zool. Journal, i. 68. Plate 

 6, fig. 2. Sowerhy Thesaur. Conchyl. No. 10, plate 3, fig. 123, 

 137. H. rubra, Pfeif. H. crassa, D'Orb. Moll, de Cuba, p. 243. 



Animal, entirely greenish black above, dusky beneath, 

 length about one diameter of the shell, surface finely reticula- 

 ted. Motions very sluggish. All the specimens procured 

 alive were found buried an inch or two deep, under decayed 

 plantain trees, at the Retiro, or in the vicinity of large rocks. 



Helicina Sagra, D'Orb., Moll, de Cuba, p. 240. Sow- 

 erby, Thes. Conchyl. plate 1, fig. 10; plate 3, fig. 126. 



Animal similar to that of H. suhmarginata, but was found 

 in dry, open fields near Matanzas. 



Helicina pulcherrima, Lea, Amer. Philos. Tran^. ; Sowb. 

 Thes. Conchyl. No. 16, plate 3, fig. 112, 113. 



The three last species vary somewhat in form and size, but 

 more especially in the color of the aperture. In the first it is 

 dark livid ; in the second, bright lemon color, and in the last, 

 white. Between the animals of the two first, I could make 

 out no appreciable difference. It is most probable that they 

 are only local varieties of the same species. 



