DEPARTMENT OF ZOOLOGY. 157 



Anthozoa. 



The most interesting additions were the following : — 



Several pieces of Osteocella septentrionalis, which have 

 formed the subject of a recent paper by Prof. S. J. Hickson, 

 F.R.S. ; collected and presented by the Rev. J. H. Keen. 



Eighty-three specimens of Porites, collected b}' the donor 

 during his expedition to the Laccadive Is. ; presented hy 

 Professor J. Stanley Gardiner, F.R.S. 



An interesting specimen of the rare Alcyonarian Antho- 

 mastus ; presented by the Eastern and Associated Telegraph 

 Companies. 



Three stony Corals, selected from the collection made by 

 the Solar Physics Observatory Eclipse Expedition of 1911 to 

 Vavau ; presented by Dr. W. J. S. Lockyer. 



Hydrozoa. 



The Medusae of the National Antarctic Expedition, described 

 by Mr. E. T. Browne in Vol. Y. of the " Discovery " Reports. 



PORIFERA. 



Twenty-five slides of freshwater Sponges ; presented by 

 Dr. Edward Potts. 



One hundred and forty-eight slides of Hexactinellida from 

 the Pacific, mostly prepared from type-specimens by Prof. 

 R. V. Lendenfeld. 



A large collection of Sponges from Christmas Island, now 

 contained in 104 bottles and 22 boxes ; collected and presented 

 by R. Kirkpatrick, Esq. 



Fifteen bottles containing nine hundred specemens of Merlia 

 normani collected at monthly and occasionally fortnightly 

 intervals during twelve months, for the purpose of ascertaining 

 the time of development of the eggs and embryos. 



A small but interesting collection of thirty-two Sponges 

 from about 20 fathoms in Departure Bay, Vancouver, B.C., and 

 including specimens of three species of Hexactinellida; collected 

 and presented hy Miss H. L. M. Pixell. 



Protozoa. 



Eight compound slides of deep-sea types of Foraminifera 

 from Funafuti, and one compound slide of holotypes and 

 plesiotypes of Foraminifera, mounted by Mr-. F. Chapman and 

 described by him in Journ, Linn. Soc. xxx., 1910 ; p)resented by 

 the Royal Society. 



