160 Dr. J. E. Gray on Chinese Mud- Tortoises. 



folded together longitudinally ; when it is spread out it is 

 nearly triangular, rather longer than broad, and marked 

 on the underside with a groove with raised edges, which is 

 simple at the base and forks off into two branches about two 

 thirds of its length, which fork again before they reach the 

 margin, the margin of the end of each groove being fur- 

 nished with two short, conical, curved, claw-like, fleshy ten- 

 tacles ; and in the middle, at the end of the central fold, is a 

 broad half-ovate fleshy lobe, probably formed of two united 

 processes, which are dark-coloured like all the rest. The end 

 of the short tail of this male is also produced into a sharp 

 conical claw-like point. 



3. Landemania irrm^ata. 



Head covered with a very thin skin. Temples, sides of oc- 

 ciput, and lips marked with a number of small sinuous and 

 often anastomosing spots. Upper part of animal and margin 

 of the dorsal shield olive, with very numerous distinct white 

 dots, which are largest on the margin of the shield. Chin, 

 throat, and underpart of body white. The expanded hinder 

 part of the dorsal disk is only slightly tubercular, not so rough 

 as the same part of the disk of L. perocellata of the same size. 

 There are no bridle-like marks on the sides and top of the 

 head, as in L. perocellata, but only a slight indication of a 

 streak from the side of the nose to the front side of the eye. 

 The front odd bone of the dorsal disk is very long and band- 

 like, and united to the front edge of the first rib and vertebral 

 disk by a straight continuous suture. The back does not 

 show any indication of black spots, as in L. perocellata, nor 

 the neck any indication of the white spots so charactei-istic of 

 that species. 



On reexamining the original specimen on which I esta- 

 blished Landemania irrorata (Proc. Zool. Soc. 1869, pp. 212 

 & 216, fig. 18 ; Suppl. Cat. Shield Rept. p. 96, fig.' 31), I have 

 no doubt that it is of the same species as the specimens here de- 

 scribed, and that they establish the fact that it is a second species 

 of the genus Landemania, and not a half-dried specimen 

 of Landemania jwrocellata, as I have considered it in the 

 'Hand-list Shield Kept.' p. 81. The first-described specimen 

 shows the white marks much more distinctly than the two 

 specimens in spirit received from Mr. Swinhoe ; and the 

 underside of the head and throat are marked with minute 

 brown spots not seen in the new specimens. The under jaw 

 of the half-dried specimen is figured in Proc. Zool. Soc. 1873, 

 p. 53, fig. 6 a, showing that it is a true Landemania, and dis- 

 tinct from L. pm-ocellata. 



