CRUSTACEA. 53 



ARTHROSTRACA. AMPHIPODA. 



ORCHESTIIDAE. 



Gulf of Maine. 



Mass. — Provincetown ; Ilace Point ; Buzzards Bay at Woods 

 Hole. 



161. Orchestia agilis Smith. 



Beach-flea. 



Orchestia agilis Smith, Rept. U. S. commr. of fish & fisheries, 

 pt. 1, for 1871-1872 (1873), p. 555 [261], pi. 4, fig. 14. ''Bay of 

 FiTNDY TO New Jersey." 



Burrows in sand. Under seaweed on rocky shores. 

 From the Bay of Fundy to Conn. 



162. Orchestia palustris Smith. 



Orchestia jxtlxstris Smith, Kept. U. S. commr. of fish & fish- 

 eries, pt. 1, for 1871-1872 (1873), p. 555 [261]. "Cape Cod to 

 New Jersey." 



Salt marshes, under drift-wood, &c. ; above high-water mark, 

 in almost dry places. 

 Mass. — Boston. 

 From Cape Cod southward. 



163. Allorchestes littoralis Stimpson. 



Allorchestes littoralis Stimpson, Mar. invert. Grand Manan, 

 1853, p. 49, pi. 3, fig. 36. "our whole coast from Massa- 

 chusetts Bay to Grand Manan." Bate, Cat. Amphip. Crust. 

 Brit, mus., 1862, p. 48, pi. 8, fig. 2. 



Rocky shores, piles of wharves, &c. 

 Me. — Bay of Fundy ; Casco Bay. 

 Mass. — Mass. Bay; Provincetown. 

 Conn. — New Haven. 



164. Hyalella dextata Smith. 



Hyalella dejitata Smith, Rept. U. S. commr. of fish & fisheries, 



