1891.] DR. C. J. FORSYTH MAJOR ON FOSSIL GIRAFFID^. 325 



allied horned forms (SivatJierium, Hydaspitherium, Bramatlierium) 

 then known. The Sivatherium having somewhat different molars, 

 whilst the teeth oi Hijdaspitlierium, according to Lydekker, are not to 

 be distinguished from those of the so-called Helladotherium from the 

 Siwaliks, whilst, besides, the configuration of the skull approaches 

 more to Hydaspitherium, I think that we have before us the female 

 skull of a genus of which the male form cannot have differed much 

 from the form presented by Hydaspitherium megacephaJum, Lyd. 



Sivatherium giganteum (female). 



Upper Tiew (A) and side view (B) of skull, one-sixth nat. si2e (after 

 Falconer and Cautleyj. Siwalik Hills, India. 



I wish to be far less positive as to the sex of the Helladotherium 

 skull from Pikermi. Having before us in the Pikermi fossil a geo- 

 logically older form, the development of horn-like appendages even 

 in the male may not have advanced beyond the stage shown in tlie 

 specimen figured by Gaudry. 



At any rate we cannot be surprised at the general likeness of the 



