3i6 REPORT OF NEW JERSEY STATE MUSEUM. 



groove and a pointed end. Color more or less translucent, be- 

 coming brownish in alcohol. Length i6o mm. 



Remarks. — A species of wide distribution along our Atlantic 

 Coast, ranging from Cape Cod southward to Florida and Brazil. 

 It is also said to occur on the Pacific Coast. The bathymetrical 

 range is nine hundred and fifty-five fathoms. It is, however, 

 rather occasional on our coast, and though a few have been re- 

 ported, it is apparently not common or regular. Stimpson found 

 it in fresh water at Beesley's Point. Along the southern shores 

 of the United States it is more or less common, though less fre- 

 quent than the usually larger Penccus setiferus, with which it as- 

 sociates and is also exposed for sale in the markets. As these ani- 

 mals soon die after being removed from the water they cannot 

 be transported any great distance in a fresh condition. 



I have no New Jersey material at hand. 



Penaeus setiferus (Linnaeus). 



Plate 92. 



Southern Prawn. 



Cancer setiferus Linnseus, Syst. Nat., Ed. XII, 1767, p. 1054. "Habitat in 



Indiis." 

 Penceus setiferus Milne-Edwards, Hist. Nat. Crust., II, 1837, p. 414. Mouths 



of rivers in Florida. 

 R. Rathbun, Rep. Fisher. Ind. U. S., I, 1884, p. 821, PI. 273. Has 



not been recorded from north of Norfolk, Virginia. (Southern Atlantic 



coast, and Gulf coast of Mexico.) 

 ■ Kingsley, Amer. Nat., XXXIII, 1899, p. 719. Middle Atlantic and 



Florida regions. 



Description. — Carapace moderate, compressed, with convex 

 surfaces. Abdominal keel well developed on fourth to sixth 

 segments, sharp, and with slight basal groove along base of sixth 

 on each side. High median keel reaches almost to hind edge of 

 carapace, and with well-developed groove either side anteriorly, 

 though grooves extend only till about midway in length of cara- 

 pace. Posterior half of keel with portion forming slightly into 

 inconspicuous double ridge. Front half of keel arched, highest 



