1850.] Linnean Society. 67 



Aud he further observes that the variations in the position of the 

 nervures, and in the magnitude of the cells, will also be found very- 

 useful in identifying the species. 



February 5. 



William Yarrell, Esq., V.P., in the Chair. 



The Rev. George Capet, James Buckman, Esq., and Walter Teb- 

 bett, Esq., were elected Fellows. 



Mr. Gould, F.L.S., exhibited specimens of the male and female 

 of a new species of Menura from the Richmond River, New South 

 Wales, and pointed out the distinctions between it and the original 

 species. He named the new species M. Alberti, in grateful acknow- 

 ledgement of the patronage which he had received from H.R.H. 

 Prince Albert. He also exhibited a specimen of a new and remark- 

 able Crustaceous animal from the same locality. 



Dr. Wallich, "\^.P.L.S., communicated, by desire of Prof, von Mar- 

 tins, President of the Royal Bavarian Botanical Society of Regens- 

 burg, an official copy of an Address presented by that Society to 

 Robert Brown, Esq., on his election to the Presidency of the Linnean 

 Society. 



Read the conclusion of Mr. Huxley's paper "On the Anatomy of 

 Diphyes, and on the Unity of Composition of the Diphyidec and Phy- ■ 

 sophorid(E," &c. 



Mr. Huxley, whose communication was written at sea, commences 

 his memoir by a brief abstract of previous investigations of the family 

 of Diphyidce, chiefly derived from the works of Lesson and Will, in 

 the absence of other books of reference. Of all the authors referred 

 to, he observes, there is not one except Will, who has given any but 

 a very superficial account of the family. So far even as the nata- 

 torial organs are concerned, it is but rarely that a description is 

 sufficiently detailed and accurate not to fit two or three species with 

 'equal ease, while 'the minute internal organs have fared still worse. 

 By all, the important fact of the gemmiparous generation of these 



