98 PROCEEDINGS OF THE NATIONAL MUSEUM. vot. xxxiv. 
expansion broad and rounded at the tip, with 7 spines on outer sur- 
face; propodus tapering and almost equal to two preceding segments 
combined; dactyl slightly longer than propodus. Last pair of uro- 
poda with rami broadly lanceolate. Uropoda 2, outer ramus some- . 
what shorter than inner. long spine near tip. Telson, lobes tapering, 
Fig. 1.—AMPELISCA HOLMESIT. ¢, LAST EPIMERAL PLATE OF METASOME; g;, FIRST GNATHOPOD OF 
FEMALE; G, SECOND GNATHOPOD OF FEMALE; 7), FIRST PEROPOD; p;, FIFTH PERMOPOD; ¢, TELSON. 
tip blunt, armed with two spines, four pairs of dorsal spines arranged 
in a’ sinuous line. 
Length, female, 11 mm. 
Abundant in a collection from Ferguson’s Pass, Oyster Bay, 
Florida. 
Type.—Cat. No. 7502, U.S.N.M. 
Named for Prof. S. J. Holmes. 
HAUSTORIUS AMERICANUS, new species. 
Body tumid. First antenna, flagellum 7-jointed, the tips of the 6 
distal joints bearing calceoli, accessory fiagellum one-jointed, second 
antenna little longer than first antenna, flagellum 7-jomted. Man- 
dible, palp large, middle joint longer than others. Second gnatho- 
pod about as stout as first gnathopod, fifth joint of second gnathopod 
armed with calceoli on its posterior distal margin. Third uropod, 
