144 THE NAUTILUS. 
depended upon with certainty. “A few drops of a 5 per cent. solu- 
tion of cocain were mixed with the water in which the Aplysias 
were. After a time they expanded fully. They were then left in 
the solution (twelve hours or more) till no contraction took place 
when removed and put into weak alcohol. If contraction took place, 
they would be put back into the cocain solution when they again 
expanded. ‘This was repeated till no contraction took place, when 
they could, after a time, be put into stronger aleohol.”—Natural 
Science, March, 1896. 
NEW PUBLICATIONS RECEIVED. 
A List oF THE SPECIES OF AMPHIDROMUS ALBERS, WITH CRIt- 
1cAL Nores AND DESCRIPTIONS OF SOME HiTHERTO UNDESCRIBED 
Species AND VARIETI“uS. By Hugh Fulton (Ann. Mag. Nat. Hist., 
January, 1896). The species of this difficult genus of Bulimi are 
arranged according to their affinities in groups; the synonymy is 
thoroughly overhauled, and several new forms are described. Mr. 
Fulton has done good service in reducing to varietal rank a large 
number of nominal species, which have caused collectors endless 
pains and confusion ; his treatment of the perversus group being espe- 
cially commendable. Three excellent lithographic plates illustrate 
new or previously unfigured species and varieties. 
RECOLTE DES MOLLUSQUES; CONSEILS AUX VOYAGEURS, par A. 
Bavay. Instructions for collecting mollusks, land, fresh-water and 
marine, with quite full information on where to find them. 
CATALOGUE OF THE SPECIES OF CORBICULIDE IN THE COLLEC- 
TION OF TEMPLE PRIME NOW FORMING PART OF THE COLLECTION 
OF THE MusEuM OF COMPARATIVE ZOOLOGY AT CAMBRIDGE, Mass. 
—By Temple Prime, 1895.—The species are arranged geographic- 
ally and under each species are arranged by letters, the synonymy 
aud the various localities represented. Of the genus Corbicula there 
are 58 species; Batissa 8; Velorita3; Cyrena 42 recent, and 25 
fossil; Spherium 23 recent and 2 fossil; Limosina 10; Pisidium 31 
recent and 2 fossil. 
BULLETIN OF THE CHICAGO ACADEMY OF ScIENCES, Vol. II, No. 
11, 1895.—Preliminary Outline of a New Classification of the 
Family Muricide, by F. C. Baker. 
