44 THE NAUTILUS. 
mens of Nautilus pompilius thrown up in Eden Bay. It is difficult 
to conceive how they get there; it is an enormous expanse to be 
drifted away from any of the Pacific Isles. Can it be possible that 
they are eaten by whales and that the shells is extruded as excre- 
ment? I make this suggestion because great schools of whales 
come in there, it is said, to rub themselves on the coarse gravel 
bottom of the bay.—Dr. J. C. Coz, in letter to Editor. 
PartuLta: Nores anp Corrections.—Partula eximia Hartm. 
=P. macgillivrayi. 
P. Brazieri Pse. is a good species. 
The type example of Partula neweenitiarum was lost with the ves- 
sel on its return to Mr. Garritt at Tahiti— W. D. Hartman. 
A New Specres oF Hempuitiia.—In examining the slugs 
referred to Hemphillia glandulosa in the collection of the Academy 
of Natural Sciences, we found that two species have hitherto borne 
thisname. The true H. glandulosa is a small slug, with distinctly 
papillose mantle; the pedal line hardly rises at the tail, and the 
caudal giand is surmounted by a conspicuous horn. The other 
form, which we call H. camelus, is much larger, the mantle is not 
papillose, and the pedal groove rises abruptly and conspicuously 
at the tail, and there is no noticeable horn there. Types from 
Old Mission, Idaho, collected by Hemphill. The species are easily 
separated by external characters, but the internal anatomy shows 
even more important differences, which will be described and figured 
in the second installment of our “ Revision of American Slugs,” now 
in preparation.—H. A. Pilsbry & E. G. Vanatta. 
RECENT PUBLICATIONS RECEIVED. 
An apparently very thorough monograph of the Cephalopoda of 
the Gulf of Naples, by Guiseppe Jatta, has appeared in the “ Fauna 
and Flora des Golfes von Neapel” (23d monograph). The illus- 
trations are incomparably magnificent. 
Mr. Felix Bernard' has detected a stage of shell-growth in bi- 
valves earlier than the prodissoconeh, which he proposes to call pro- 
tostracum. He finds the protostracum on the summit of the prodis- 
soconch. The Glochidium stage in Unionide is its equivalent. 
1 Compt. Rend. Acad. Sci. Paris, Vol. 124, p. 1165; Natural Science, July, 
1897, p. 10. 
