228 0?EBENNOtHORUS. 



under the bark, and in the interior of decayed trunks of fallen 

 trees ; particularly partial to the Basswood ( Tilia Americana). 

 This snail is known to deposit about thirty eggs, seinitrans- 

 parent, oval, about '2 inch long ; the 3^oung were hatched in 

 twenty days. W. G. Binney enumerates the following color 

 varieties : 



a. Whitish, without clouded spots, tending to grayish. 



b. Whitish, slightly clouded longitudinally. 



c. Irregularly clouded with brownish, without any tendency 



to longitudinal arrangement. 



d. With three distinct rows of large clouded spots. 



e. With great numbers of fine black spots. 



f. Gray, with a line of minute black dots along each side. 



g. Blackish gray, with black lines along each side, and an 



indistinct line down the middle of the back. 

 Limax togata, Gould, and L. marmoreus, Dekay, are synonyms. 



T. CROSSEANUS, Strebel. PL 56, fig. 2. 



Mantle light-brown, with numerous dark gray flecks or spots ; 

 sole with a broad brownish gray central portion, and narrow 



striated margins. Length, 1'25 inches. 



Mexico. 

 T. SALLEI, Crosse and Fischer. PL 56, fig. 3. 



Elongated, a little dilated in front, obtuse posteriorly ; color 

 uniform ash-gray without markings, becoming lighter on the 

 sides and sole. Length, 1 inch. 



State of Vera Cruz, Mexico. 



Unfigured and Undetermined Species. 



T. AURATUS, Tate. Chontales, Nicaragua. 



T. COSTARICENSIS, Morch. Costa Eica. 



T. QUADRILUS, OXYURUS, FUSCUS, FLEXUOLARIS, NEBULOSUS, and 



LIVIDUS, Rafmesque. United States. 



T. LACTESCENS, Blainv. (Limacella Elfortiana, Blainv.). 



Hab. unknown. 



Placed in this group by Dr. Gray, but evidently does not 

 belong here. The specimens, from long immersion in alcohol, 

 are no longer in condition for specific recognition. 



