300 Zoological Proceedings of Societies. 



views, referred to the prevalence of the same principle in the 

 sciences of Chemistry and Mineralogy : and he promised to enter 

 more at large into the subject at the ensuing meeting. 



June 27. — Several species of birds which had been collected by 

 Mr. W. S. MacLeay in the neighbourhood of the Havana were 

 exhibited by the Secretary, among which were some undescribed 

 species of Mr. Swainson's manuscript genus Colupiesy and some 

 interesting species of Loxiada. 



Mr. Brayley commenced the reading of a paper On the existence 

 of a quinar)/ division^ and a circular succession of affinities among 

 simple Mineral-substances ; with observations on the affinities and 

 analogies of various subjects in Geology and Meteorologij. 



November 14. — The Secretary exhibited specimens of three 

 species of Reptiles^ and two of Bats, recently sent from the Island 

 of Cuba by Mr. W. S. Mac Leay. Dr. Ilorsfield stated that one 

 of the Bats was referable to the genus Nyctinomus ; the species 

 he was not at the moment enabled to ascertain.* Of the Reptiles, 

 Mr. Dell observed that one was a species of the genus Jmphis- 

 bcEua, previously unknown to him ; and that the others belopged 

 to the genus Anolis, one of them being the J. principalis, and the 

 other probably a new species. + 



Mr. Westwood being called upon by the Chairman, exhibited 

 specimens of the larvce, of the wood perforated by them, of the 

 pupce, and of the imago of Xiphydria Dromedarius, collected by 

 A. Cooper, Esq. The larvce and pupw appear to have been 

 hitherto unknown. 



A letter from Barron Field, Esq. F.L.S. inclosing a communi- 

 cation from M. Guimard, one of the naturalists of the late ex- 

 pedition under M. Freycinet, was read. The communication of 

 M. Gaimard was afterwards read, in which that gentleman an- 

 nounces the discovery, in the Straits of Gibraltar, of a new family 

 of the class of Mollusca, les Diphides, and of ten new genera, 

 which had been named Briarvc, Calpe, Abyla, Nacelle, Enneagone, 

 Cuboide, Hippopode, Rosacee, Flcche, and Jstroide. Of these, 

 he states that he has forwarded descriptions and specimens to the 

 Academic des Sciences. 



* See llie present Number, p. 236. 

 + Ibid. p. 235. 



