Achatinella and oilier Pulmoiiata, 339 



H<»lix ilviilifoi'St, Sliuttleworth (Polygyra). 



Sarasota Bay, Florida, Dr. W. Newconib. 



Jaw low, arcuate, ends bluut, anterior surface with about tliirteen ribs, 

 denticulating either margin. 



Lingual membrane as we have figured for H. auriculata. (Land and 

 Fresh Water Shells, I, p. 87, fig. 158.) 



Veroiiacella oeeMentalisi, Guildiug. 



Guadeloupe, Mr. A. Schramm. 



Jaw and lingual membrane as usual in the genus, the former with about 

 thirty ribs. (See Amer. Journ. of Conch., VII, 1G3, pi. xii, fig. 7 and L. 

 and F. W. Shells, I, p. 304, flg. 539.) 



The head, eye-peduncles and tentacles of the specimens, 

 preserved in alcohol, were entirely withdrawn, the aperture 

 through which they withdrew being very conspicuous. The 

 tentacles and eye-peduncles are contractile, as described. 

 There appears, properly speaking, to be no distinct locomo- 

 tive disk to the foot. Such a disk has been descril)ed for the 

 genus, owing to authors considering the reflected edges of 

 the mantle as portions of the foot. These give, indeed, a 

 tripartite appearance to the base of the animal, but the foot 

 itself is not divided. 



OiiclfiitliiiiM ftielii'Siiiinsi, nov. sp. 



In the absence of any satisfactory published figure of the 

 lingual dentition of the genus Onchidium, we give on pi. 

 xvi, figs. 3-5, figures of that of a species sent to us by Mr. 

 A. Schramm, from Pointe a Pitre, Guadeloupe. He col- 

 lected many specimens, thus describing their station. "Sous 

 des galets au bord de la mer, dans la rade de la Pointe a Pitre, 

 eu societe avec des Nerites, des Auricules et des Pedipes." 



The external appearance of the species, which may be called after the 

 discoverer, is as usual in the genus. The body is elliptic in shape, green 

 in color, about eighteen millimeters long (contracted in spirits), flat 



