INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 503 



color extendiug dowu upon the epimera, while the legs and caudal ap- 

 pendages are seini-translucent. The eyes are large and black. 



Amphitiioe maculata Stimpson. Plate IV, fig. W. (p. 315.) 



Marine Invertebrata of Graud Mauan, p. 53, 1853. 

 Vineyard Sound to the Bay of Fundy and Labrador. 



Amphitiioe vaxida Smith, sp. nov. (p. 315.) 



Male: Eyes round, black in alcoholic specimens. Antenuuhi' and 

 antenme snbequal in length. Peduncle of the antennula extending 

 scarcely beyond the distal extremity of penultimate segment of the 

 peduncle of the antenna ; the second segment but little longer than the 

 first ; ultimate segment short and slender. Ultimate and penultimate 

 segments of the peduncle of the antenna snbequal in length. First 

 pair of legs short, compressed ; carpus as broad as the propodus ; pro- 

 podus broad, oval in outline, the posterior and palmary margins forming 

 a continuous, nearly- semicircular curv^e; dactylus fitting closely the pal- 

 mary margin. Second pair of legs very large; carpus small ; propodus 

 oblong, broadest at the distal extremity, very large and thickened, the 

 outer surface convex, the inner fiattened, palmary margin transverse, 

 with a broad, low, median tooth, and a rounded prominence at the in- 

 ferior angle, within w- hich the tip of the very stout and strongly cnrved 

 dactylus closes. 



The female differs in having the hands of the first pair of legs slightly 

 more elongated, and those of the second pair smaller than in the male, 

 and the palmary margin slightly oblique. 



Color in life, bright green. 



Length, 10-13""". 



]S^ew Jersey and Long Island Sound. 



Amphithoe longimana Smith, sp. nov. (p. 370.) 



Male : Eyes round, and, in specimens preserved in alcohol, black. 

 Antennula slender and as long as the body; second segment of the 

 peduncle a little longer than the first; third segment about half as 

 long as the second ; flagellum about twice as long as the peduncle. An- 

 tenna considerably stouter and slightly shorter than the antennula, the 

 13edancle about twice as long as the flagellum ; third segment of the 

 peduncle a little more tlian half as long as the first segment of the pe- 

 duncle of the antennula; fourth segment nearly three times as long as 

 the third; fifth considerably longer than the fourth; flagellum a little 

 longer, or sometimes only as long, as the fifth segment of the pednncle. 

 Hands of the first and second pairs of legs stout and much elongated. 

 Carpus in the first pair nearly as long as the first segment of the pedun- 

 cle of the antennula, narrow ; propodus much more than twice as long- 

 as broad, as wide and long as the carpus, of the same width throughout, 

 slightly curved, and the very short palmary margin transverse; dacty- 

 lus stout, very little curved, more than half as long as the propodus, 

 and projecting far beyond its inferior edge ; the posterior margins of 



