50 MARINE INVERTEBRATA OF GRAND MANAN. 



laro-e red c^'cs. Superior antennte two-tliirds as long as the inferior ones, thick at 

 their bases, but tapering suddenly after the juncture of the long accessory flagellum, 

 which is nearly one-half the length of the principal one. Inferior antennas with 

 very thick basal articles, and equalling in length two-thirds that of the body, their 

 flan-ella constituting more than one-half their length. Legs hairy, all terminating 

 in short hooked fingers ; those of the first two pairs slender, longer than the rest, 

 with the antepenultimate article in each a little expanded, but scarce sufficiently 

 to form a hand. Posterior legs much shorter than usual, and provided along their 

 edges with short spine-like hairs. First three segments of the abdomen serrated 

 above on their posterior edges ; last three compressed above into sharp spine-like 

 projections, of which the middle one is the longest. Caudal stylets of the first pair 

 very long and slender, projecting beyond the sharp extremities of the second pair, 

 which are short, while those of the third pair are long, with long lanceolate rami 

 projecting beyond the others. The tail terminates in two long spines. Color wine- 

 yellow ; inferior antennse annulate with reddish. Length, 0.32 inch. Dredged in 

 forty fathoms on a soft muddy bottom off Long Island, G. M. 



Anonyx nobilis, St., n. s. This species most resembles A. appendiculoms, Kroyer, 

 Gronlands Amfipoder, Tab. i. f. 2, from which it differs in the following particulars. 

 The black e^'es are oblong or oval, and sometimes nearly round, instead of clavate. 

 The basal joints of the superior antennte are cylindrical rather than conical. The 

 epimerals are much larger, especially those of the fifth segment ; and there are no 

 deep serrations on the edges of the femora in the last two pairs of legs. The rami 

 of the last pair of caudal stylets are much larger. Color white. Antennae light 

 fawn. Length three-fourths of an inch. It was taken in considerable numbers on 

 the sandy flats of Fisher s Cove, Nantucket Island, etc., at low-water mark. 



The curious appendicula on the segments of the flagella of the antennaa appear 

 like little flasks attached by their constricted necks. The legs of the second pair 

 terminate in small, compressed, circular articles, provided with hairs, but without 

 any indication of a finger or nail. 



A. POLiTUS, St., n. s. Elongated, broad and rounded above, but with less height 

 than is usual in Anonyx; head small, tumid, with the eyes subrectangular, but 

 broadest below, and of a bright red color. Superior antennge very short and thick, 

 regularly tapering to a point, with a short accessory flagellum, and in length one- 

 fourth that of the inferior ones, which equal in length about one-half that of the 

 body, and have very long and slender flagella. Legs of the first pair with small 

 but well-formed subcheliform hands ; those of the second pair very long, but usually 

 bent up beneath the epimera, and terminating in a small, flat, rounded, hirsute 

 article, without a nail. Abdomen with a deep sinus between the segments bearing 

 the natatory feet, and those bearing the caudal stylets; all of which latter append- 

 ages terminate in long, smooth, pointed rami. The tail terminates in two pointed 

 spines, about two thirds the length of the last pair of caudal stylets. Color light- 

 yellow. Length, 0.4 inch. Dredged in forty fathoms, on a soft muddy bottom off 

 Long Island, G. M. 



A. PALLiDus, St., n. s. Body short, slightl}^ compressed, rounded above, with a 

 sinus at the alulomen as in A. j^olihis. Head with large, black, subclavate eyes. 



