1871.] F. Stoliczka— Notes on Terrestrial Mollmca. 245 



specimen in which the two outer teeth are as far distant as repre- 

 sented in Gould's or Eeeve's figures; Chemnitz's figure is in 

 this respect more correct. A comparatively very rare case is that 

 the two outer teeth on the lip remain almost undeveloped even in 

 full grown shells, but I have collected such specimens. In Tickelli 

 the two outer teeth appear to be still closer together than they are 

 usually seen in infrendens. The height of the shell of the latter spe- 

 cies varies considerably, from nearly one-half to two -thirds of the 

 longer diameter, and the last whorl becomes occasionally somewhat 

 distorted. The largest specimen collected on the limestone hills 

 at Damotha, near Moulmein measures : long. diam. 10*5, shorter 

 diam. 9'7 ; height of spire 5*2 ; height of shell 6-5 mm. The 

 corresponding measurements of one of the flattest full grown 

 varieties are 9, 8*4, 4, 5 '2 mm., and those of one of the highest 

 forms 9, 8'8, 5, 6-2 mm. 



The animal is pinkish white with gray pedicles and somewhat 

 paler tentacles ; sometimes the whole of the anterior body and the 

 terminal part of the foot about the tail gland are leaden gray ; the 

 mantle is thick at the edge, sometimes white, but more usually 

 pale orange with white minute specks. 



Sesara pylaica, (Bens.) 



Helix pylaica, Benson, A. and M. Nat. Hist. 1856, vol. xviii, p. 249 ; Conch. 

 Ind., pi xv, p. 2. 



The internal thickening of the basal portion of the outer lip 

 generally terminates abruptly near the periphery, occasionally 

 forming a very distinct blunt tooth. 



This species does not grow to an equally large size as the last and 

 generally also remains somewhat flatter ; the largest specimen mea- 

 sures larger diam. 9*5, shorter diam. 9, axis 4-3, height of shell 

 5*2 mm. ; the corresponding measurements of one of the most 

 elevated specimens are 9, 8*5, 4*8, 5*6 mm. 



The animal is pinkish white, darker in front on the back and on 

 the pedicles, as is also the last species ; pedicles moderately long, 

 tentacles rather short and paler gray ; foot very narrow and long. 



Hab. " Farm caves" near Moulmein ; common. 



