212 LIMAX. 



(Group Malinastrum, Mabille.) 

 L. EUSTRICTUS, Bourg. PL 52, figs. 24, 25. 



Large, posteriorly carinated, smoky ash-colored , with brownish- 

 black maculations or reticulations, with a lateral interrupted 

 black line on either side; shield large, angulate behind, concen- 

 trically rugulose. Length, 5 inches. 



Syria. 

 Section MEGAPELTA, Morch, 1851. 



L. SEMITECTUS, Morch. PL 52, fig. 21. 



Black, acuminate behind, head and tentacles light yellowish, 

 shield concentrically rugose, oval, more than half the length of 

 the body. Length, 2 inches. Central America. 



Described from a colored drawing. 



L. GUATEMALENSIS, Crosse and Fischer. PL 52, figs. 28, 29. 



Scarcely carinate, bluish black, shield darker colored, with 

 vermiform sulcations ; sole pallid. Length, 15-18 mill. 



Guatemala. 



The specimens were in a bad state of preservation, so that the 

 diagnosis could not be completed. Although much smaller, the 

 authors remark that it may be a variety of the preceding species, 

 and that it differs but little from the next mainly in the central 

 tooth of the lingual series being plainly tricuspidate in this spe- 

 cies and only obscurely tricuspidate in L. Americanus. 



L. AMERICANUS, Tate. PL 52, figs. 80, 31. 



Gray, with black in the grooves, giving the general appearance 

 of a brownish black, head and tentacles lighter colored ; shield 

 brownish black and smooth, free as far as the respiratory orifice; 

 edge of foot with defined crenulated border ; foot gray, three- 

 zoned ; shell represented by a thin semiopaque membrane. 



Chontales, Nicaragua. 



See remarks upon preceding species. 



L. STENURUS, Strebel. PL 52, figs. 18, 26. 



Shield full in front, very minutely granulated, appearing 

 smooth without a glass, no concentric sulcae ; brownish gray, 

 darker on the shield, lighter on the sides, sole light brown. 



Mexico. 



Appears to resemble the preceding species. 



