PROCEEDINGS 
OW TIL 
UNITED STATES NATIONAL MUSEUM 
VOLUME XV. 
PRELIMINARY DESCRIPTIONS OF THIRTY-SEVEN NEW SPECIES 
OF HERMIT CRABS OF THE GENUS EUPAGURUS IN THE U. S. 
NATIONAL MUSEUM. 
BY 
James E. BENEpIcr, 
Department of Marine Invertebrates. 
1, Subgenus BUPAGURUS. 
Typical species Bupagurus bernhardus (L.). 
Hupagurus with the large surface of the left hand horizontal. Species 
not inclined to be hairy. 
2. Subgenus TRIGONOCHIRUS. 
Typical species Bupagurus trigonocheirus Stimpson. 
Hupagurus with the outer face of the left hand oblique and more or 
less triangular. In some cases it is flattened, in others concave, or very 
much swollen, as in hirsutiusculus. The species are frequently very 
hairy. 
3. Subgenus BLASSOCHIRUS. 
Typical species Hupagurus tenuimanus (Dana), 
YI p pag 
Eupagurus with the left hand very small, in some cases aimost rudi- 
mentary. The large hand is always wide or broadly ovate, excepting 
in munitus and gilli, where the carpus is exceedingly wide, and the hand 
moderately so. Hye scale semicylindrical, grading to triangular, sharp 
pointed. Species not hairy; many of them very smooth and glabrous. 
Proceedings National Museum, Vol. X V—No, 887, 
Proc. N. M. 92 1 
