On the Latitudinal Distrihutioyi of Jieptiles. 271 



Thus, bv means of tlie law of central or median moraines, 

 we o-ive an explanation of the remarkable ftxct, tbat the blocks 

 which come from the most remote valleys and the most ele- 

 vated peaks, such as the Pennine rocks, are likewise those 

 which, notwitlistanding their often enormous size, stray the 

 greatest distance from their primitive sites. According to 

 this hypothesis, the preservation of the blocks, their angular 

 forms, or striated surfaces, their passage across lakes, their 

 elevated position on the sides of mountains, for which no 

 other hypothesis gives any probable account — in a word, the 

 erratic phenomena — are no longer in our eyes an impene- 

 trable mystery. 



Latitudinal Distribution of Beptiles inhabiting the Malai/an 

 Peninsula and Islands, and other localilies. By THEODORE 

 Cantor, M.D., Bengal Medical Service. 



[Sp. prefixed to localities signifies that they are inhahited by species of which 

 varieties occur in Malayan countries.] 



CHELONIA. 



1. Geoemyda qrinosa, Pinang. Sumntra. 



Gray. 



2. Emys cmssicoUis, Tinang, Slalayan Sumatra, Java. 



Bell, ms. Peninsula. 



a. Emys platynota, Pinang, IMalayan Sumatra. 

 Gray. Peninsula. 



4. Emys trhnttata. Pinang, Malayan Bengal, Assam. 



Dum. and Bibr. Peninsula. 



5. Cistudo amhoinensis Singapore, Malay- Java, Amboina, Pliilip- 



(Daud.) an Peninsula. pines, Tenasserira Pro- 



vinces. 



0. Tctmonyx ajims, Pinang. 

 Cantor. 



7. Gymnopii". (jangc- Pinang, Malayan llivers and Bay of Ben- 



ticHS (Cuv.). Peninsula. gal. 



8. Ctymnopus cartila- Pinang, Malayan Java, Dukhun, '• India," 



yin<:us (Boddaert)- Peninsula. " China." 



9. Oymnoptts indicus, Pinang, Malayan Rivers of India, Pliilip- 



(CJniy). Peninsula. pines. 



