120 THE NAUTILUS. 



PUBLICATIONS RECEIVED. 



A BIOLOGICAL EXAMINATION OP LAKE MICHIGAN, etc. (Bull. 

 Mich. Fish Comm., No. 6). A brief resume of the malacological 

 results in the vicinity of Charlevoix, Mich., by Mr. Bryant Walker, 

 is given on pp. 96-99. 



THE MOLLUSKS AND BEACHIOPODS OF THE BAHAMA EXPEDI- 

 TION OF THE STATE UNIVERSITY OF IOWA (Nat. Hist. Bull. S. U. 

 I., IV, No. 1). By W. H. Dall. New forms are Murex nuttlngi, 

 Cerion niteloides, Liotia centrifiiga, Carditella smithii, the latter from 

 Bermuda. Cerion mwmiola Pfr. is recorded from Tortugas, " prob- 

 ably the result of transportation by sea drift. If living at Tortugas 

 it would add a new species to the fauna of the U. S." The new 

 species are figured. 



ON THE CORRECT POSITION OF THE APERTURE IN PLANORBIS, 

 by F. C. Baker (Cincinnati Soc. N. H., XIX, p. 45). By the 

 examination of young specimens and broken adults, Baker concludes 

 that all the larger species examined are sinistral, the small ones 

 dextral ; these terms being used in their old senses. The late work 

 of Fischer and others on cognate inquiries is not referred to. 



TIIK ANATOMY OF SPH.KRIUM SULCATUM LAM., by Oilman A. 

 Drew (Proc. Iowa Acad. Sci., 1895). A thorough and useful paper, 

 illustrated by plates of details and a reconstructed figure from sec- 

 tions. No useful abstract can be made; it may be mentioned, how- 

 ever, that a vestige of the byssal gland persists in the adult. The 

 typhlosole is not strongly developed. Sphserium is hermaphroditic, 

 but the ova and sperm are produced by distinct follicles, the ova- 

 bearing being fewer and among the most posterior. A useful but 

 not exhaustive bibliography is given. 



CONTRIBUTIONS TOWARD A LIST OF PAPERS RELATING TO TIIK 

 NON-MARINE MoLLUSCA OF THE HAWAIIAN ISLANDS, by E. R. 

 Sykes (privately printed). Includes scattered papers, other than 

 general or monographic works, and within this scope seems to be a 

 nearly or quite complete bibliography. In a footnote on p. 5 Mr. 

 Sykes calls attention to an error in a date given in the Proceedings 

 of the Academy of Natural Sciences of Philadelphia, but in so doing 

 commits an equal error himself, misquoting the date actually given 

 in the Proceedings. H. A. P. 



