No. 559] 



NOTES AND LITERATURE 



441 



NOTES ON ICHTHYOLOGY 



The most imposing work in ichthyology for the year is Dr. C. 

 H. Eigenmann's "Fresh Water Fishes of British Guiana," pub- 

 lished in the Memoirs of the Carnegie Museum, No. 5. Th's 

 paper contains a very full discussion of the different species of 

 the region concerned, with synonymy and notes of various kinds. 

 It is also accompanied by an excellent series of maps and fi urn res. 

 with an illuminating discussion of the fauna of British Guiana 

 and northern Brazil. This paper is the result of a most im- 

 portant expedition made by Dr. Eigenmann under the auspices 

 of the Carnegie Museum at Pittsburgh. 



Another work of very great importance is the "Resultats des 

 Campagnes Scientifiques" of Albert the First, Prince of Monaco. 

 In Fascicule XXXV of this splendidly printed series. Dr. Eric 

 Zugmayer gives the results of the work of the Yacht Princesse- 

 Alice for the ten years from 1901 to 1910. Many species, old and 

 new, are described, with a series of admirable plates representing 

 deep sea fishes of. the Mediterranean which the learned and in- 

 defatigable prince has brought to light. 



In the Ann. and Mag. Nat. Hist, 1912, Mr. C. Tate Regan dis- 

 cusses the relations of the various families of eels. 



In another paper he discusses the relations of the Blennioid 

 fishes which, following Gill, he divides into numerous families, 

 the Brotulids with the Fierasfers and Zoarces being regarded as 

 among these Blennioid families. In another paper Mr. Regan 

 discusses the affinities of the Mailed Cheek fishes. Following 

 Cuvier and Jespersen, he assigns the sticklebacks to this group, 

 contrary to the views of all other recent systematists. I can not 

 believe that the sticklebacks have any affinity with the mailed 

 cheek fishes, the ossified skin on the cheek being an analogy only. 



In another paper Mr. Reirnn discusses the hair fishes of the 

 genus Heptatretus. The different groups characterized by the 

 number of gill openings, ranging from 6 to 14. are not regarded 

 as separate genera. 



In another paper the anatomy of the Discocephali is under 

 discussion. He regards these fishes, in spite of the singular 

 sucking disc on the head, as allies of the perch-like fishes, per- 

 haps not far removed from Nauerates. 



