176 



PULMONATA. 



4. MiLAX CRISTATUS. 



Greyish olive, reticulated with black ; back entirely keeled ; 

 head and tentacles black ; tail compressed, rather blunt ; mucus 

 deep yellow. 



Krynickellus cristatus, Kaleniczenko, Bull. Soc. Nat. Mosc. 1851, 

 p. 225. t. 5. f. 1. 



Hab. Southern Taui'ia, near Otuz. 



Dr. Kaleniczenko has referred lAmax megaspidus, Blainville, 

 to this species ; but the original specimen from which that spe- 

 cies was described by M. de Blainville, in the British Museum, 

 has a rounded and not a keeled back. 



5. MiLAX CARINATUS. 



Body elevated, compressed, bluish grey above, rugose, grooved ; 

 mantle oblong, rugose, elevated in the middle, showing the situa- 

 tion of the shell ; back keeled to the mantle. 



Shell ? 



Limax carinata, D'Orb. in Webb &• Berth. Canar. Moll. 47. t. 3. 

 f. '4-8. 



Gray, Fig. Moll. t. 284. f. 4. 

 Limax cinereus, Ledru, Voy. Teneriffe, i, 18fi, 1810. 

 Hab. Teneriffe: suspends itself by a thread. 



In the figure the mantle is rounded at each end, and the re- 

 spiratory hole is nearly central. 



6. MiLAX VIRESCENS. 



Body above green-brown, smoothish ; shield very smooth, an- 

 terior ; back keeled. Shell oblong, very thin, near the apex 

 rather convex. — t. 8. f. 2. 



Parmacella virescens, Schultz in Philippi, Moll. Sicil. i. 125. t 8 



f. 2, shell. 

 Limax virescens, Philippi, Moll. Sicil. ii. 103. 

 Hab. Sicily; Panormo. 



7. MiLAX NIGRICANS. 



Body above black, nearly smooth, beneath brown ; shield ru- 

 gose, anterior ; back keeled. Shell irregular, thick, i-ugulose, 

 flattish. 



Parmacella nigricans, Schultz in Philippi, Moll. Sicil. i. 125 t 8 



f. 1, shell. 

 Limax nigricans, Philippi, Moll. Sicil. ii. 102. 

 Hab. Sicily ; Parnormo. 



