636 MR. W. A. FORBES ON THE [NoV. \4, 



by anthropologists as acrocephahj, a deformity also in Man associated 

 with the premature consolidation of the same sutures as those affected 

 in the present specimen, and which, it is supposed, has influenced the 

 form of the cranial bones. We have here, then, in all probability, not 

 a case of specific or even racial distinction, but one of individual varia- 

 tion due to pathological changes at an early period of development. 

 Acrocephaly of a precisely similar type occurs sporadically in men 

 of all races. The Museum of the Royal College of Surgeons 

 possesses good examples of it in a West-African Negro, an Arab, a 

 Polynesian, and an Enghshman ; but as I believe it has not hitherto 

 been observed in any of the Anthropoid Apes, the present specimen 

 is one of great interest. 



The following papers were read : — 



1. Supplementary Notes on tlie Anatomy of the Chinese 

 Water-Deer {Hydropotes inermis) . By W. A.Forbes, 

 B.A., Prosector to the Society. 



[Eeceived July 18, 1882.] 



An adult male of this curious Deer having lately passed through 

 my hands, it may be advisable to record my notes on certain of its 

 soft parts, on the condition of which the late Prof. Garrod laid 

 considerable stress in the classification of the Ruminants, but some 

 of which were, I believe, unknown to him, the specimen of Hydro- 

 potes described by him " having been a young (in fact still-born) 

 example of the opposite sex. 



As regards the male organs of generation, the glans penis is an 

 elongated tapering compressed cone, with the urethral opening 

 subterminal, thus closely resembling those of Capreolus, Cervulus, 

 and Elaphochis. There are no traces of Cowper's glands, as is also 

 the case in the first and last of the three genera just named. In 

 these respects, then, Hydropotes resembles most closely Capreolus 

 and Elaphod'us, and differs from the Rusine Deer, with which, 

 according to the views of.. Sir Victor Brooke at one time ^, in 

 part indorsed by Garrod ^, it was supposed to have perhaps its 

 closest relations. The large "rusiform " Spigelian liver-lobe, which 

 was found by the last-named anatomist in ihe yonng of Hydropoies, 

 and the presence of which he adduced as supporting those views, is, 

 however, quite absent in the liver of the present specimen. There 

 is a similarly situated " spurious cystic fossa," containing, however, 

 no gall-bladder, only a minute almost atrophied cord, of apparently 

 vascular nature. The caudate lobe is well developed. 



In the rumen of the stomach the villi, where best developed, are 

 pretty uniformly filiform, slightly flattened, but not clavate. The 



» Cf. P.Z.S. 1877, p. 789, and CoU. Papers, pp. 422-425. 

 2 P. Z.S. 1872, p. 525. ^ Coll. P,ap. p. 425. 



