INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 565 



and third seg-uients of the abdomeu produced into a slight angular 

 prominence at tlie 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 i)air there is a 

 long, slender spine projecting from the distal extremity of the base be- 

 neath the rami. 



Length of largest specimen examined, 13'"™. 



North Carolina to Cape Cod. Common among eel-grass. Taken at 

 surface in Vineyanl Sound. 



PODOCEIIUS FUCICOLA Smith, (p. 493.) 



Cerapus fiicicola Stimpsou, Marino luvertebrata of Grand Manaii, p. 48, PI. ?, 

 rig. 34, 1853. 

 This species was dredged by Professor Yerrill, in -i to 5 fathoms, off 

 Watch Hill, Ehode Island, in April, 1873. It is comiuon in the Bay of 

 Fundy. 



PoDOCERUS, species, (p. 491.) 



Another species of the same genns was taken in abundance ^vith the 

 last. It is a hxrge and dark-colored species. 



Ceeapus rubricoknis Stimpsou. Plate IV, fig. 18. 



Marine luvertebrata of Grand Manan, p. 46, PL 3, fig. 33, 1853; Bate, Catalogue 

 Ampliip. Crnst. Brit. Mns., p. 256, PI. 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. 



Antennnhe and antenna^ about equal in length, rather more than half 

 as long as the body. Second jiair 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 dactylns, 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 [irocess. 



Length, about 4""". 



Long Island Sound, Vineyard Sound. 



? Cerapus tubularis Say. (p. 39G.) 



Loc. cit., p. 49, PI. 4, fig. 7-11, 1817. 

 Several specimens of a small amphipod, dredged, June 27, in Vineyard 



