72 THE NAUTILUS. 



inquiry and extend it to other migratory birds of a similar 

 nature. W. L. McATEE, Biological Survey, Washington, in 

 The Auk, July, 1914, p. 404. 



PUBLICATIONS RECEIVED. 



THE CEPHALOPODA OF THE HAWAIIAN ISLANDS. By S. Still - 

 man Berry. Bull. Bur. of Fisheries, vol. 32, Document no. 

 789, 1914. A monographic, illustrated account, based chiefly 

 upon material collected by the Fisheries steamer Albatross. The 

 fauna contains about 25 named species, together with about 

 half as many uncertain forms. The absence of the great genera 

 Loligo and Sepia is an unexpected peculiarity. Sepia being a 

 littoral group, the author suggests that "wide oceanic areas 

 may in some wa}^ form a special barrier to its dispersion. If 

 this be true, we should perhaps expect other littoral forms, 

 such as the Polypi [Odopiis], to be distributed in accordance 

 with the same principle, but this does not appear to be the 

 case. An explanation of this anomaly may be found in the 

 hypothesis that the dissemination of these other forms took 

 place at a more ancient period." The case of Sepia seems to be 

 analogous to that of Fulgur and other gastropods of our coast 

 which pass the veliger stage in the egg-capsule, and thus have 

 never reached Bermuda, whilst genra with swimming embryos 

 are common to Florida and Bermuda. The presence of Polypus 

 in Hawaii indicates, probably, a less isolated condition in 

 former times. 



In summing up, Mr. Berry concludes that "although the 

 ensemble of Hawaiian Cephalopods shows many features pecu- 

 liar to itself, it appears reasonable to regard it as an offshoot, 

 now largely isolated, of the great Indo-Malayan fauna, and 

 therefore impossible of any definite or satisfactory correlation 

 with that of other regions of the north Pacific." The conclu- 

 sions of students of other groups of animals are quoted, sup- 

 porting this estimate of the faunal relations of the islands. 



