SCIENTIFIC SOCIETIES. 279 



Mr. F. E. Beddard read a paper on the Brain and Muscular Anatomy 

 of Aulacodus. 



Mr. Gerard W. Butler read a paper on the subdivision of the body- 

 cavity in Snakes, being a continuation of the subject treated of in a memoir 

 on the subdivision of the body-cavity in Lizards, Crocodiles, and Birds, 

 previously read before the Society. « 



Mr. J. W. Gregory gave an account of his researches on the British 

 Paleogene Bryozoa, of which he recognised thirty species, represented in 

 the National Collection by about 750 specimens. 



Mr. Sclater gave an account of a small collection of Birds from Anguilla, 

 West Indies, made by Mr. W. R. Elliott, one of the collectors employed by 

 the Committee for the exploration of the Lesser Antilles. 



Prof. G. J. Romanes read a paper on a seemingly new diagnostic 

 character of the primates, which was that the terminal joints of both hands 

 and feet in all species of this order are destitute of hairs. This rule did 

 not apply to the Lemurs. 



Mr. 0. Thomas read a paper on the genus Echinops, of the order 

 Tnsectivora, with notes on the dentition of the allied genera Ericulus 

 and Centetes. 



Mr. G. A. Boulenger gave an account of the Reptiles and Batrachians 

 collected by Mr. C. Hose on Mount Dulit, North Borneo. Amongst these 

 was a fine new Lizard of the genus Varanus, proposed to be called V. hetero- 

 phils. The two Batrachians were also described as Rhacophorus dulitensis 

 and Nectophryne hosii. 



A paper was read by Lieut.-Col. H. H. Godwin-Austen on new species 

 and new species and varieties of the Land Molluscan genus Diplommatina, 

 collected by himself, and more recently by Mr. W. Doherty, in the Naga 

 and Muuipur Hill ranges. The author described twenty-seven supposed 

 new species, the most remarkable being D. uuicrenata, with a peculiarly - 

 formed peristome. 



A communication was read from Mr. B. B. Woodward on the mode of 

 growth and the structure of the shell in Velates conoideus, Lamk., and in 

 other Neritidce. The mode of growth and the structure of this shell were 

 described as follows : — Up to a certain point the growth is normal ; a 

 change in the direction of growth afterwards takes place, and the test is 

 enlarged by the addition of fresh shelly matter on the exterior of the under 

 side and by the removal of previously-formed layers on the inner surface. 

 The internal septum that serves the purpose of a myophore was shown to 

 have originated in the paries, which, in the course of growth, had been 

 replaced by the septum. In this respect Velates conoideus epitomised in 

 its life-history conditions which are found in distinct recent species of the 

 closely-allied genus Neritina. The relations of the paries and septum in 

 this last genus were also described. 



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