166 PULMONATA. 



4. LlMAX ONGUIFORMIS. 



Greenish brown ; body cjlindrical, with a black streak on each 

 side, netted with very fine lines ; shiekl elongate, elliptical, 

 quite smooth, two-thirds the length of the body, with very small 

 black dots; head and tentacles bluish, often contracted imder 

 the shield; footUvid; resphatory aperture «7i^enor. 



Limax onguiformis, Morelet, Moll. Portugal, 36. t. 3. f. 1. 



Hab. Portugal; Algarve. 



This slug appears less contractile than usual; it is always 

 more or less elongate, probably on account of the thickness and 

 rigithty of the outer skin. — Morelet. 



5. Limax nitidus. 



Deep black ; shield smooth, shining, varnished, elongate, 

 roimded, with the shell gibbose ; body cylindrical, with very fine 

 longitudinal grooves ; the part of the nape under the front of 

 the shield fulvous; foot reddish; respirator}^ aperture rather 

 posterior; shell thin, elhptical, slightly convex, concentrically 

 striated, concave and subcrjstalline beneath. 



Limax nitidus, Morelet, Moll. Portugal, 35. 

 Hab. Portugal ; Algarve. 



6. Limax squamatinus. 



Small, slender, greenish-golden ; sides bluish ; tentacles black ; 

 body minutely reticulated, four-streaked, lateral lines parallel, 

 dorsal converging into a single one just behind the shield ; aper- 

 ture of respiration medial, subanterior, thin, generally contracted; 

 shield elongate, hke L. onguiformis; shell elliptical, concave, 

 attenuated in fi'ont. 



Limax squamatinus, Morelet, Moll. Portugal, 3/. t. 3. f. 2. 

 Hab. Portugal ; Serra de Caldehao {Morelet). 



Suspends itself by a secretion from the end of the foot. Per- 

 haps a variety of the former. 



7. Limax melanocephalus. 



Ashy grey; pulmonary region and tip of the tail yellowish 

 grey ; beneath paler ; head and tentacles black ; mucus grey ; 

 body elongate behind, keeled and acute ; shell white, tliin, flat, 

 elliptical. 



KrjTiickia melanocephala, Kaleniczenko, Bull. Soc. Imp. Moscou, 

 1839, i. 30. 



