120 THE SCOTTISH NATURALIST 



overcome the weaker forms in the surrounding areas. This area is 

 placed by the author in North-Central Europe, and the peopling of 

 the earth is supposed to have taken place by way of certain definable 

 paths leading from the area in question. Other points of much interest 

 are brought forth in this well-argued paper, which we strongly recommend 

 our readers to peruse. 



An account of the common diseases which attack familiar food fishes 

 of the North Sea cancers and tumours, and diseases more clearly 

 traceable to the active agency of parasitic protozoa and worms is given 

 by H. C. Williamson in the latest "Scientific Investigations" publication 

 of the Fishery Board for Scotland (March 19 13). There is also 

 interesting information regarding the structures and causes of such 

 abnormalities as spinal-curvature and hump-back, found especially in 

 cod and haddock from the North Sea. 



In the concluding part of the paper referred to last month, and 

 entitled " Myrmecophilous Notes for 1912" {Entomologists Record, April 

 I 9 I 3i PP- 89-97), we note the following records for Scotland: Coleop- 

 TERA Drusilla canaliculata, F., Tiree ; Staphylinus stercorarius, 01., 

 Rannoch and Forth Bridge ; Potosia (Cetonia) cuprea, var. floricola, 

 auct., Nethy Bridge ; Diptera P hy Homy za formica;, Collin, and Phora 

 femorata, Mg\, Nethy Bridge ; Hymenoptera Ceutcterus oprimator, 

 Grav., and Baeus seminulum, Hal., at Nethy Bridge ; Araneina 

 Evansia merens, Camb., Tiree ; Crustacea Platyarthrus hoffmanseggi, 

 Brdt., Rannoch, "Banffshire," and Inverkeithing. 



J. T. Marshall, in the Journal of Conchology for April (pp. 33-35) 

 continues his "Additions to 'British Conchology,'" and in the present 

 instalment mentions several Scottish localities for the following species : 

 PJiiline angulata, Jeff., and var. circamlustra, Marsh ; P. quadrata, 

 S. Wood ; P. punctata, Clark, and var. cingulata, Marsh ; P. pruinosa, 

 Clark ; P. nitida, Jeff. ; P. aperta, L., and var. patula, Jeff. [Mollusca.] 



A paper by John F. Musham, entitled "The Land and Freshwater 

 Mollusca of Iona," appears in the April number of the Journal of 

 Conchology (pp. 58-60). A score of species are recorded, resulting 

 from the joint observations of the author and A. Somerville. [Mollusca.] 



James Edwards, in a paper having for its title "A Contribution to 

 a Knowledge of the British NotiopJuli " (Entomologists Monthly 

 Magazine, March and April 1913, pp. 70-75) records the following 

 Scottish localities : N. pusillus, Wat., Dalwhinnie ; N. hypocrita, 

 Spaeth., Ross and Braemar. [Coleoptera.] 



In the Entomologists Monthly Magazine for April (p. yy) Norman 

 H. Joy records and describes Alheta magniccps, J. Sahib., a new British 

 species, from examples taken in October 1909, and again in 1910, in 

 flood rubbish from the river Truim at Dalwhinnie, Inverness-shire. 

 The species was originally described from Finland, where it is reported 

 to be a rare insect. [Coleoptera.] 



