65 BIBLIOGRAPHY, 



Limax agrestts is very common on Tromsoen, but few of the 

 specimens exceed 25 mill, in length, and they are of a uniform 

 light brown color. The distribution is given as 17 species in 

 Nordland, 27 West Finmarken, and 14 in East Finmarken. — 

 J-W.T. 



The Invertebrate Fauna ofthe Firth of Forth partiii. 



comprising the Forifera, Coeleiiterata (pars) Vermes, Pycnogonida, 

 and MoUnsca. — By George Leslie, Demonstrator of Zoology, 

 University of Edinburgh, and W. A. Herdman, D.Sc, F.L.S. 



This list is founded on Dr. McBain's extensive catalogue, 



to which is added the additional species found by the German 



Expedition in 1872, and reported upon by Metzger and Meyer. 



Mr. Balfour and Rev. J. McMurtrie have also added some 



species, and in addition the latter gentleman has revised the 



M.S., and incorporated much valuable information gained in his 



extensive knowledge of the Conchology of the Firth of Forth. 



About 200 species are enumerated, of which S3 are Conchifera, 

 I Solenoconchia, 84 Gastropoda, 23 JVi/dibra/ichs, 2 Piibnonobranchs, 

 and 8 CepJialopods. In addition to the species, many varieties 

 are mentioned as occurring in the district. 



In point of numbers the fauna of the Forth does not com- 

 pare favorably with that of the Clyde. Mr. A. Brown in his 

 'Mollusca ofthe Firth of Clyde' admits 290 species of which 2 

 are Brachiopods no representative of which group is found in 

 the Forth, 138 are Gastropods against 84, and 3 Cephalopods 

 against 8 found in the Forth. 



The whole list is carefully done, and the localities and the 

 identifications are given with care and exactitude. The work is 

 a welcome and solid contribution to our knowledge of the fauna 

 of Scotland.— J. W.T. 



On the Mollusca of H.M.S. 'Challenger' Expedi- 

 tion. The Ctzcidce, comprising the genera Fa?'astroJ>hia, 

 IVafsoiiia, and Ccecum. — By the Marquis de Folin, with a 

 prefatory note by the Rev. Robert Boog Watson, B.A., F.R.S.E., 

 F.L.S., &c., Proc. Lin. Soc, Dec. i6th, 1879. 



J.C, iv., July, 1883. 



