306 



LAND AND FRESII-WATER SHELLS OF N. A. [PART I. 



The jaw and lingual membrane have been figured and de- 

 scribed on p. 304. 



Fig. 543. 



i«mia4!M5!«Mi^^ 



Lingual dentition of Veronicella floridana. 



Has been found at a single locality, namely, at Charlotte 

 Harbor on the west coast of Florida. 



The above description is obviously very imperfect, inasmuch 

 as it is drawn from a dead and greatly contracted specimen, 

 and as no notes of the animal have been found excepting as to its 

 locality. The characters, however, are sufficiently marked to 

 distinguish the species. From its slight reticulation, in its con- 

 tracted state, it must have been quite smooth when extended. 

 Its colors are similar to those of 2^ebennopho7^us carolinensis, 

 and similarly distributed. The tentacles are not very conspicu- 

 ously spurred, but the puncture for the protrusion of a spur is 

 manifest. 



Spurious Species of Yeronicella. 



The following species are catalogued by Grateloup among the American 

 Vaginuli (Dist. Geog. des Limaciens, 22). They were all described by 

 RaQnesque, and by him placed in his genus PItilomycus. From the general 

 iuaccuracj of that author, as well as th.e deficiency of the descriptions, I 

 think they should be excluded from this or any genus : — 



Vagimdus flexuolaris, Vaginuhis oxi/itrus, 



Vayinulus fuscus, Vaginuhis quadrilus. 



Family ONCHIDIID^. 



Lingual membrane broad ; teeth uniform, similar, in 

 numerous, straight, transverse rows; the centrals single, 

 short, narrow, equilateral ; the laterals numerous, nearly- 

 equilateral, with a broad, flat, subcentral tip. Mouth pro- 

 vided with a buccal veil. 



No horny jaws. 



Animal ovate, limaciform. 



