[565] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 271 
and third segments of the abdomen produced into a slight angular 
prominence at the postero-inferior angle. The posterior edges of the 
bases of the sixth and seventh pairs of legs not serrated but armed with 
two to four small spines. First and second pairs of caudal stylets ex- 
tending scarcely beyond the posterior pair. In the first pair there is a 
long, slender spine projecting from the distal extremity of the base be- 
neath the rami. 
Length of largest specimen examined, 15™., 
North Carolina to Cape Cod. Commonamong eel-grass. Taken at 
surface in Vineyard Sound. 
PODOCERUS FUCICOLA Smith. (p. 493.) 
Cerapus fucicola Stimpson, Marine Invertebrata of Grand Manan, p. 48, PI. 3, 
fig. 34, 1853. 
This species was dredged by Professor Verrill, in 4 to 5 fathoms, off 
Watch Hill, Rhode Island, in April, 1875. It is common in the Bay of 
Fundy. 
PODOCERUS, species. (p. 494.) 
Another species of the same genus was taken in abundance with the 
last. It is a large and dark-colored species. 
CERAPUS RUBRICORNIS Stimpson. Plate IV, fig. 18. 
Marine Invertebrata of Grand Manan, p. 46, PI. 3, fig. 33, 1853; Bate, Catalogue 
Amphip. Crust. Brit. Mus., p. 256, Pl. 45, fig. 4, 
Not common south of Cape Cod, but very abundant in the Bay of 
Fundy and north to the coast of Labrador. In depth it extends down 
to 100 fathoms at least. 
CERAPUS MINAX Smith, sp. nov. 
Antennule and antennie about equal in length, rather more than half 
as long asthe body. Second pair of legs greatly developed in the male, 
the hand nearly half as long as the body; carpus elongated, narrow, 
nearly three times as long as the breadth in the middle, the posterior 
angle projecting into a broad process about as long as the dactylus, and 
armed on the inside with a tooth nearly as stout as the distal part of 
the process itself, but projecting only about half as far; propodus about 
half as long as the carpus, twice as long as broad; dactylus consider- 
ably shorter than the propodus, the tip in most of the larger specimens 
furnished with a pencil of long hairs. In the female the hand in the 
second pair of legs is small; the carpus produced into a long process on 
the inferior edge of the propodus to the palmary margin; propodus 
short, broad, somewhat oval, the palmary margin arcuate and armed 
with several short spines on the portion next the carpal process. 
Length, about 4"™. 
Long Island Sound, Vineyard Sound. 
?CERAPUS TUBULARIS Say. © (p. 396.) 
Loe. cite, p. 49, Pl. 4, fig. 7-11, 1817. 
Several specimens of a small amphipod, dredged, June 27, in Vineyard 
