28 NEW-YORK FAUNA CRUSTACEA. 



ceeding the lamellar appendix of the external antennae, and very wide and truncate at the 

 end. Anterior feet large, and of moderate length. Five pair of spines on the medial caudal 

 plate. Abdominal segments on each side acute. 



Length, 1-0- 1-5. 



This species has been obtained by Dr. Gould, rather abundantly, from the stomachs of 

 fishes on the coast of Massachusetts. It is properly a boreal species, and abundant in the 

 polar seas. 



GENUS PANDALUS. Leach. 



General form of the preceding. The first pair shortest, and ending in a slender point ; second 

 pair very slender, and didactyle. Twelve branchiae on each side. Upper antenna; longer 

 than the body, ending in two filaments. 



Pandalus annulicornis. 



PLATE VII. FIG. 18. 



Pandalus annuliformis* Leach, Mai. Podoplh. pi. 40; and Lin. Trans. Vol. U, p. 346. 



P. id, Desmarest, Consid. sur les Crustaces, p: 220, pi. 38, fig. 2. 



P, id. Milne-Edwards, Hist. Nat. des Crustaces, Vol. 2, p. 384. 



P. id, Gould, Invertebrata of Massachusetts, p, 332. • 



Description. Rostrum as long as the shield, with eight to ten teeth above ; lower side of 

 the rostrum with a few teeth near the tip, separated by a smooth interval from others near the 

 base. Feet slender ; those of the first pair scarcely exceeding the lamellar appendix of the 

 external antennae ; the three last pair armed with spines. 



Color. The antennae marked with eight or ten reddish rings, as broad as the intervening 

 white spaces. 



Length, 3-0 -40. 



Found in the stomachs of fishes on the coast of Massachusetts. 



