1878.] CLASSIFICATION OF THE CERVIDjE. 901 



(a) The upper tines (b & c, fig. 2) of nearly equal length in adult 

 animals ; in young males the outer and anterior tine (b, fig. 2) 

 the longer. 



1. CERVUS ARISTOTELIS, 



1835-7. Cervus aristotelis, Cuv. Oss. foss. (ed. 4) torn. vi. p. 84. 

 Range. British India, Ceylon, Burmah, Siam, Hainan (Swinh.). 



(/3) The outer tine (b, fig. 2) always surpassing the inner 

 tine (c) in length. 



2. Cervus equinus. 



1825. Cervus equinus, Cuv. Oss. foss. (ed. 3) torn. iv. p. 454 ; 

 ib. (ed. 4) pi. 201. fig. 10. 



1839-44. Cervus equinus, Mull. Verh. Nat. Gesch. Ned. Bez. 

 Zool. p. 213, pis. 42-45. figs. 7-11. 



Range. Borneo, Sumatra (Mull.) ; Singapore (Brooke). 



I have seen several living specimens of this species, all of which 

 in their much darker colour, more bushy tail, short slightly curved 

 antlers, presented a tout ensemble very unlike the common Sambur. 

 On the other hand, I have received skulls aud antlers from Siam 

 which are strikingly intermediate between typical specimens of Cervus 

 aristotelis and C. equinus. It appears to me therefore probable 

 that the existence of these intermediate forms may ultimately render 

 it impossible to maintain the distinction of the species. 



3. Cervus swinhoii. 



1862. Rusa swinhoii, Sclat. P. Z. S. 1862, p. 152, pi. 17. 



1862. , Swinh. loc. cit. p. 364. 



1871. , Sclat. Trans. Z. S. 1871, p. 333, pi. 39. 



Hab. Formosa. Type, Brit. Mus. 



This species closely resembles Rusa equinus. 



4. Cervus philippinus. 



1827. Cervus philippinus, Ham. Sm., Griff. An. Kingd. vol. iv. 

 p. 147, and vol. v. p. 319. 

 • 1877. , Brooke, P. Z. S. 1877, p. 51, pi. 8. 



Hab. Luzon (Philippines). Type, Mus. d'Hist. Nat. Paris (No. 

 409 in Cat.). 



5. Cervus mariannus. 



1820. Cervus mariannus, Desm. Mamm. sp. 669, p. 436. 



1877. , Brooke, P. Z. S. 1877, p. 53. 



Hab. Island of Guam (Marianne Islands). Type, Mus. d'Hist. 

 Nat. Paris (414 a in Cat.). 



As I have stated in my paper ahove referred to, I feel pretty 

 certain that this and the preceding species are identical. I am, how- 



Proc Zool. Soc— 1878, No. LIX. 59 



