220 



EEINACEIDJ3. 



In the mandible the lower incisors diminish progressively behind ; 

 the canine is larger, and resembles the up])er canine, Init has only 

 one root ; the first two premolars are small, the third larger, the 

 fourth still larger, and higher than the molars, of which the first, 

 as in the upper jaw, is the largest tooth in the jaw, the others 

 diminishing in size progressively. 



The vertebral formula differs considerably in the two species. 

 Mammse two pairs : one thoracic, near the axilla, the other pair 

 inguinal. 



Both forms of Gymnura somewhat resemble large shrews. Until 

 lately they have been placed in distinct genera, the smaller form 

 being classed as HyJomys ; but Dobson has united them, and 

 although I feel some misgivings as to their being congeneric, there 

 can be no doubt about their near relationship. . Both occur in 

 Burma, but are unknown west of the Bay of Bengal. 



Synopsis of Burmese Species. 



A. I^arger ; head and body 12 to 14 inches ; tail tln-ee 



fouvths that leno-th G. rafflesi, p. 220. 



B. Smaller ; head and body about 5 inches ; tail one 



sixth that length G. suilla, p. 221. 



109. Gymnura rafflesi. Baffles'' s Gymnura. 



Viverra pyirimu-a, liaffcs, Tr. L. S. xiii, p. 272. 



Gymnnra rafflesii, Ilors/icid (md Viyors, Zool. Journ. iii, p. 24S, pi. 8 



(1827) ; Cantiir, J. A. S. B. x\, p. IJJO; li/yi/i, Cat. p. 81 ; 7/'. 



JJltnif. J. vl. <S'. L'. xlvii, pt. 2, p. 150,- Anderson, Cat. p. 108; 



Uohson, Mun, Ins. p. 3. 



Fig. 57. — Gynumui ruffltsi. 



Tail about three fourths the length of the head and body, com- 

 pressed towards the tip, naked, scaly, the scales small and arranged 

 in rings, between which short hairs project, liccoming coarse 

 bristles on the undei- sin-face, ^\here the scales are more convex 

 and more distinctly imbricate than above. Ears short, rounded. 



