LIMACIN^. 



327 



entire, rarely closed by an operculum, and sometimes 

 only rudimentary. 



SuBFAM. 1. LIMACINiE. Slugs. 



Shell very thin, often rudimentary, and generally too 

 small to contain the entire animal ; tentacula, when 

 present, cylindrical, and bearing the eyes at their tip. 



Herpa. Tentacula two, or none ; shell none ; jaws 

 none, or not discernible. 



Herpa Guild. Linear, fusiform, anterior greatly at- 

 tenuated ; eyes very small, sessile ; tentacula none. 

 H. gigas. See App. 

 Onchidiiim Buck. (Jig. 95.) Tentacula 

 two ; mantle very large, tuberculated, 

 almost covering the body ; mouth 

 with two triangular flattened lobes. 

 ; Typhoe Bitch. Lin. Tr. v. 132. 

 LiMAx Linn. Tentacula four ; shell 



rudimentary, or none. 

 Limax Linn. Orifice near the pos- 

 terior part of the mantle ; shell 

 very small. 



L, variegatus. Griff. Cuv. pi. 35. f. 2. 



Avion Fer. Orifice near the anterior end of the man- 

 tle ; shell none. 



A. empiricorum. Griff. Cuv. pi. 35. f. 1. 



Vaginula Fer. Mantle large, covering the whole body ; 

 no shell. 



V. Taunaysii. Griff. Cuv. pi. 35. f. 7. 

 Parmacella Lam. Mantle moderate, membranaceous, 

 placed on the middle of the back ; the edges loose ; 

 shell oblong, flat ; spire minute. 



P Olivieri. Griff. Cuv. pi. 35. f. 5. 

 Testacella Lam, Mantle very small, and placed at the 

 posterior extremity of the body ; shell small. 

 T. haliotoidea. Griff. Cuv. pi. 35. f. 4, 

 y 4 ■ 



