i893. NOTES AND COMMENTS. 409 



Several contributions have lately been made to knowledge of 

 the distribution of the mollusca. Mr. A. Everett has made extensive 

 collections of land-shells in Borneo and the Philippine Islands, and 

 these have been described by Mr. E. A. Smith {Journ. Linn. Soc. ZooL, 

 vol. xxiv., 1893, pp. 341-352, pi. XXV., and Ann. Mag. Nat. Hist. [6], 

 vol. xi., 1893, PP- 347-353' P^- xviii.). Mr. A. Abercrombie has col- 

 lected 320 species of mollusca on the coast of Bombay, and 25 are 

 determined to be new by Mr. Cosmo Melvill {Mem. and Proc. Manches- 

 ter Lit. and Phil. Soc, vol. vii., 1893, pp. 17-66, pi. i.). A list of 205 

 species from the Seychelles is also given by P. Dautzenberg {Bidl. 

 Soc. Zool. France, vol. xviii., 1893, PP- 78-84). 



The American Naturalist for April contains an article, by 

 Professor E. D. Cope, on the Genealogy of Man. Professor Cope 

 agrees with M. Topinard in beheving that the Hominidse descended 

 directly from the lemurs, without the intervention of the Simiidae. A 

 special feature of this article is a plate showing the peculiar character 

 of the grinding faces in the teeth of the Palaeolithic men of Spy. 



The vexed question of Man and the Glacial Period is discussed 

 over twenty pages of the American Geologist for March. Messrs. 

 Shaler, Wright, Leverett, Upham, Claypole, Winchell, Hitchcock, 

 and Putnam contribute to the discussion, which has apparently been 

 induced by the publication of Professor Wright's book, noticed in 

 this Journal for February. There are also some papers on Glacial 

 deposits ; and those on Pleistocene Geology, read at the Ottawa 

 meeting of the Geological Society of America, held in December, 

 1892, also appear in print. 



One result of the recent excursion of the Geologists' Associa- 

 tion to Norfolk (to which we called attention in our April issue) was 

 the finding in the Norwich Crag, at Bramerton, of a portion of an 

 antler of Cervus sedgwicki ?, Falconer. The specimen was obtained 

 by Mr. R. W. Hinton, and identified by Mr. E. T. Newton. 

 Although named with a query, it belongs to a form hitherto not 

 recognised out of the Cromer Forest Bed. 



The subject of chlorophyll in animals has just been discussed 

 again in a lengthy article by Dr. E. L. Bouvier {Bull. Soc. Philum. 

 Paris [8], vol. v., 1893, pp. 72-149). He admits that the green 

 colouring matter is sometimes diffuse in Infusoria, but he considers 

 that in the large majority of cases there is distinct proof that it occurs 

 solely in symbiotic algae of the family Palmellaceae. He points out 

 that these green specks are frequently found free in the water, and in 

 that case they multiply by zoospores like the isolated algae of certain 

 lichens. He has also observed the inoculation of organisms by these 

 free chlorophyll-bearing cells. 



