(HIKOPTERAV VOTES 11 



immature; they accord , in all essential respects (craiiinlly and 

 externally), with H. lankadiva ivom d^yVm, abov(> all of course, 

 in the four characters just })ointe(l out , hut wliether tliere are 

 minor ditierences wliich would make it necessary to separate the 

 Burmese hat as a distinct race, I am unable to decide with 

 certainty from these two youngish specimens. 



Tenasserim is the most western locality from wliicli I liave 

 seen any specimen of //. diadema, the spe(;ies ranging, 

 as far as known to me , in xarious races from Tenasserim and 

 tlie Mala}- Peninsula (H. d. masoni) in the west, eastwards 

 through the Indo-and Austro-Malayan Archipelago {H. d. enganus, 

 diadema, vicarius, griseus), as far as New Guinea (H. d. pul- 

 lalus) and the Solomon Islands (H. d. oceanitis). But Dohson 

 has recorded « H. diadema » from the Central Provinces of 

 India, and he also mentions a specimen from Darjeeling (^). But, 

 considering that H. lankadiva was by Dobson (as by others) 

 contused witii H. diadema ; further . tliat H. lankadiva is now 

 known to occur not only in Ceylon but also in Piurma , and 

 tlierefore, no doubt, also inhaljits ^\\v Indian Peninsula and 

 })arts of Himalaya, the question arises : are the specimens recorded 

 by Dobson really H. diadema, or are they H. lankadiva ? Is it 

 perhaps that H. lankadiva is a western species , ranging 

 from Ceylon and the Indian Peninsula to Burma, H. diadema 

 an eastern species, ranging from Tenasserim and the Malay Pen- 

 insula to the Solomon Islands? Since the two species are evidently 

 rather closely related, of nearly the same size, and probably have 

 much the same habits ( food , &c. ) , the suggestion is , a priori , 

 not unreasonable that they occupy separate areas, allowing, of 

 course, for the probability that these areas overlap eacli other 

 somewhere in Indo-China. — A re-examination of the specimens 

 in the Calcutta Museum registered by Dobson would give some 

 basis for a settling of tliese questions. 



A. Hipposi<leriis call'ex' caflf'er, Sund. 



1847. Rhinolojjhiis caffer, Sundevall, Ofv. Kgl. Vet.-Akad. Forlì. IH. no. 5 

 (13 May 1846), pp. 1 18-119. — Type locality: Fort Natal. (Faratypo 

 examined.) 



(!) Moil. Asiat. Cliir. p. 2i)0, iios. 292-290 (ISTC): see also J. Aiulcrson. Cat. Mainin. 

 Ind. Mils. Calcutta. \>. 115 (ISSI). 



