126 THE NAUTILUS. 
higher (as high as long, or nearly so), quite oblique ; the beaks are 
very large; upper margin and hinge very strongly curved ; color 
pale greenish horn; surface highly polished, with distinet, irregular 
lines of growth. 
Known from Maine and New Jersey. It has been collected in 
Partridge Lake, in the thoroughfare between Partridge and Long 
Lakes, in Long Lake, Square Lake, all in Maine, with the dredge, 
in various depths down to 25 feet, by Mr. Olof O. Nylander. Also 
dredged in White Pond, N. J., by Messrs. Pilsbry and Rhoads, to- 
gether with rather typical specimens of pauperculum and inter- 
mediate forms. The upper margin and hinge are asstrongly curved 
as in Pis equilaterale Pr. and some forms of P. compressum Pr. The 
beaks are so large as to make out almost the whole upper part of 
the mussel. 
This Pisidium has been named after Mr. Ol. O. Nylander, who 
has so assiduously collected both recent and fossil mollusea of north- 
ern Maine. 
New Philadelphia, Ohio., Jan., 1898. 
. 
PUBLICATIONS RECEIVED. 
CATALOGUE OF THE HATFIELD COLLECTION OF SHELLS FROM 
THE Loyauty Istanps, by James Cosmo Melvill and Robert 
Standen. Originally published in the Journal of Conchology, this 
paper has been reprinted as one of the Manchester Museum Hand- 
books. The Loyalty Islands belong to the New Caledonian group, 
and like that island are remarkably prolific in mollusk life. About 
600 species, of which a score are new, are catalogued by Messrs. 
Melvill and Standen. Some idea of the wealth of the fauna may be 
obtained from the fact that there are 42 species of Conus, 53 mitras, 
46 Cyprea and Trivia (among them C. exanthema L.’ Rashleigh- 
ana Melv., suleidentata Gray, aurora (aurantium), clandestina v. 
Artuffeli Jouss., poraria var. albinella (new), Trivia childreni, ete.). 
Other interesting species are Turbo moluccensis and the Plewrotom- 
ide, of which a large number of small species, including numerous 
new ones, occurred. ‘Two excellent plates illustrate new forms. The 
work is very creditable to Mr. and Mrs. Hatfield, who collected the 
shells, as well as to the authors. 
Mr. G. B. Sowerby announces the issue of a supplement to his 
“ Marine Shells of South Africa.” 
’ Probably not indigenous. 
