CYCLEMYS GIEBELII, 45 



young specimens from Java in spirits , another very young 

 one in spirits from Sumatra. In the latter island C. dhor 

 appears to be much less numerous than C. ovata. 



Cycleniyg ovata. 



Two adult specimens from W. Sumatra , stuffed ; one 

 nearly adult, one very young and four young specimens 

 in spirits from the same locality. Gray was the first to 

 distinguish this species from the foregoing. In addition 

 to the characteristics mentioned by him (Suppl. to the ca- 

 tal. of shield reptiles p. 28, 29), it may generally be dis- 

 tinguished from C. dhor by the black radiating lines on 

 the sternal plates being much broader and more conspi- 

 cuous. Moreover the anterior borders of the two anal 

 plates meet in the median line of the sternum under an 

 angle which is much less acute than that which they form 

 in C. dhor. In numerous specimens of C. ovata these an- 

 terior borders even merge into each other by a very gentle 

 curve. 



Gray's specimens were from Borneo. 



Appended to C. ovata Gray mentions the tortoise from 

 Banka described by Giebel. (Zeitschr. f. d. ges. Naturwis- 

 sensch. 1866, p. 15) under the name of CI. dentata as re- 

 quiring further elucidation. 



As the Leyden Museum possesses a specimen which was 

 brought from Borneo by Schwaner in 1844 and which 

 exactly corresponds to Giebel's description I may here be 

 allowed to redescribe the species under the name of 



Cycletny» giehelii n. sp. 



Shell rather depressed , serrated both anteriorly and pos- 

 teriorly , the posterior serrature being very strong , as in 

 young specimens of C. dhor. A continuons ridge along 

 the median line of the back , the sides of the shell sloping 

 downwards very evenly on both sides of the ridge , which 

 has not the appearance of a raised keel. Nuchal plate 

 rather large , triangular , broadly truncated in front. Mar- 

 Notes frora the Leyden Miuseum, Vol. III. 



