342 PROCEEDINGS OF THE ACADEMY OF [Juue, 



June 4. 



Mr. Charles Morris in the Chair. 



Fourteen persons present. 



A paper entitled " New Japanese Marine and Fresh-water j\Iol- 

 lusca, " by Henry A. Pilsbry, was presented for publication. 



Occurrence of Hyla andersonii at Clementon, jS\ J. — ]\Ir. Wit- 

 imer Stone exhibited a specimen of Hyla andersonii obtained at 

 Clementon, N. J., May 12, 1901, by Mr. Henry L. Viereck, and 

 presented by him to the Academy. 



The species was heretofore known only from five examples — the 

 type secured at Anderson, S. C. ; one oblained by Dr. Joseph 

 Leidy, at Jackson, N. J., July 1860 ; one from May's Landing, 

 N. j'., J. E. Peters, June 1, 1888, and two from Pleasant Milfs, 

 June 17, 1889, Dr. J, Percy Moore. 



Mr. Stone stated that, though probably of restricted distribu- 

 tion, the species wquld no doubt prove more abundant if specially 

 sought for, the comparative remoteness of the New Jersey barrens, 

 where most of the specimens were found, and the retiring habits 

 of the animal both tending to make its detection difficult. 



A few months since he had heard some tree frogs in a swamp 

 near Medfoi'd, N. J., whose call was different from that of any 

 other species with which he was acquainted, and he was inclined 

 to attribute it to the present form; diligent search, however, failed 

 to discover the animals. 



June 11. 

 Mr. Arthur Erwin Brown, Vice-President, in the Chair. 



Fifteen persons present. 



Papers under the following titles were presented for publication : 

 " Zygeupolia litoralis, a New Heteronemertean, " by Caroline 

 Burling Thompson. 



