1888.] 



Presents. 



423 



loped rhinencephalon, but it agrees in the narrowness of the thala- 

 mencephalon and mesencephalon and in the breadth of the medulla 

 oblongata, as also in the rudimentary character of the cerebellum. 



Ceratodus agrees also with the Ganoids in the comparative narrow- 

 ness of the mesencephalon and in the proportions of the cerebellum. 



With the Plagiostomata it agrees in the structure of the optic 

 lobes, both orders presenting a ganglion of large cells in the dorsal 

 part. With the Teleostei it agrees in the multiaxial fibres which, a 

 short distance anterior to its termination, resemble the Mauthner's 

 fibres, also in the position and the fact of their decussation. 



With Petromyzon it agrees in the structure of the tela choroidea 

 which covers the fourth ventricle. 



Presents, March 8, 1888. 



Transactions. 



Calcutta : — Indian Museum. A Catalogue of the Moths of India 

 by E. C. Cotes and Col. C. Swinhoe. Part 2. 8vo. Calcutta 

 1887. The Trustees. 



Cambridge: — Philosophical Society . Proceedings. Vol. II. Part 3. 

 8vo. Cambridge 1888. The Society.. 



Cambridge, Mass. : — Harvard University. Bulletin. No. 39. 8vo. 

 1888; Annual Report, Harvard College. 1886-87. 8vo. Cam- 

 bridge 1888. The University.. 



Charleston: — Elliott Society of Science and Art. Proceedings. 

 August 26, 1886, to July 28, 1887. 8vo. [Charleston.] 



The Society 



Essex Naturalists' Field Club :— The Essex Naturalist. 1888. 



No. 1 and 2. 8vo. Buchhurst Hill 1888. The Club. 



London : — Entomological Society. Transactions. 1887. Part 5. 8vo. 



London 1888. The Society. 



Royal Institute of British Architects. Journal of Proceedings. 



Vol. IV. No. 9. 4to. London 1888. The Institute. 



Marlborough :— Marlborough College Natural History Society. 



Report. No. 36. 8vo. Marlborough 1888; The College. 



Paris : — ficole Normale Snperieure. Annales. Tome V. Nos. 1-2. 



4to. Paris 1888. The School. 



Societe de Geographie. Bulletin. Tome VIII. Trim. 4. 8vo. 



Paris 1887. The Society. 



Rome: — Reale Accademia dei Lincei. Annuario. 1888. 12mo. 



Roma. The Academy. 



St. Petersburg: — Comite Geologique. Bulletin. (Russian.) Tome VI. 



No. 1. 8vo. St. Petersburg 1887. The Comite. 



Vienna : — K. Akademie der Wissenschaf ten. Anzei^er. Jahr£. 1888. 



Nr. 1-3. 8vo. Wien. The Academy. 



2 h 2 



