34 THE NAUTILI! b. 



several years. The fauna was exactly the same as in the neighbor- 

 ing parts of Santa Clara Valley, except extremely large, and con- 

 tained not a sign of an operculate snail of any kind, nor did the son 

 of a neighboring rancher know of any such form, though he knew 

 the other species by sight. The other ponds were no better. Either 

 the locality given was incorrect or the species was killed out by the 

 drying-up of the lake while the other forms were not for some rea- 

 son. Certainly it does not occur there at present for no traces could 

 be found HAROLD HANNIBAL, San Jose, Cal. 



PUBLICATIONS RECEIVED. 



A NEW SPECIES OF CAVOLINIA, WITH NOTES ON OTHER 

 PTEROPODS. By WM. H. DALL (Smithsonian Misc. Coll., Vol. 50, 

 Jan., 1908). Cavolinia couthouyi, n. sp., from Fiji Is. and New- 

 South Wales. 



GONIDEA ANGULATA LEA, WITH DESCRIPTION OF A NEW 



VARIETY. By WM. H. DALL (Smiths. Misc. Coll., Vol. 50, Jan., 

 1908). G. a. haroldiana is a new form from Guadalupe Creek, 

 between San Jose and San Francisco Bay, "remarkable for the 

 almost total absence of lateral angulation," etc. 



NOTES ON THE FRESH-WATER MOLLUSK PLANORBIS MAGNIFI- 

 cus AND DESCRIPTIONS OF Two NEW FORMS. By PAUL 

 BARTSCH (Proc. U. S. Nat. Mus., Vol. 33, pp. 697-700). Planorbis 

 magnificus Pilsbry occurs in Greenfield Pond, near Wilmington, 

 N. C., where it is rather scarce and local. P. eucosmnis, n. sp., was 

 found in the same pond. It is very close to P. bicarmatus striatus, 

 but distinguished by having two chestnut bands. P. eucosmius 

 vaughani, n. subsp., is from Burke's Place, La. All are illustrated 

 with photographic figures. 



THE PHYSIOLOGY OF THE NERVOUS SYSTEM OF THE RAZOR- 

 SHELL CLAM, ENSIS DIRECTTS CONRAD. By GILMAN A. DREW 

 (Journal of Experimental Zoology, V, No. 3, March, 1908). 

 Among other interesting conclusions, Dr. Drew finds that " the 



