THE CARNIVOliOUS SLUGS OF SOUTH AFRICA. 211 



inner lip. Skin coarsely reticulated, the rug£e being especi- 

 ally prominent on the anterior part of the back. Dorsal 

 grooves very conspicuous, about 1 mm. apai't (or rather more 

 in the centre), separated by a row of rugae which is usually 

 double in the middle of the body, converging as they approach 

 the respiratoi'y opening, but not uniting with each other. 

 Lateral grooves deep but rather irregular, extending along 

 each side of the body as far as the head, a little nearer the 

 upper than the lower keels, the right one terminating in the 

 genital opening. Below each latei^al groove another more 

 irregular groove branches from the most anterior radia.l 

 groove and runs forward above the lower keel until it unites 

 with the lateral groove on the side of the head. There are 

 two or three irregular sub-lateral grooves on each side, and 

 also three or four equally irregular supra-lateral grooves, 

 parallel to the most anterior radial grooves and connecting 

 the dorsal grooves with the lateral grooves on each side of 

 the back. The upper keels are notched by these supra-lateral 

 grooves as they cross them, but the keels are more deeply 

 notched by the radial grooves, which are rather numerous 

 and very conspicuous. Both radial and sub-lateral grooves 

 terminate below in a longitudinal groove, parallel to the peri- 

 podial groove, but separated from it by a narrow row of 

 rugae. In addition to the usual transverse grooves there is 

 an obscure longitudinal groove on the foot-fringe, also 

 parallel to the peripodial groove. 



Body mottled with greyish-brown patches of colour, which 

 sometimes have a greenish-blue tinge. The mottliug is chiefly 

 concentrated on the sides of the body between the keels, but 

 patches of colour also occur between the lower keels and the 

 peripodial groove, and more sparsely on the dorsal area. The 

 ground-colour of specimens preserved in spirit is usually pale 

 yellow slightly tinged with reddish-brown dorsally ; but in 

 living examples the skin is more deeply coloured, the back 

 being reddish-brown, and the sides and foot-sole tinted with 

 orange-red. 



The following are the dimensions (in alcohol) of the type 



