ISO pons OF THE ATLAXr/C COAsr—niCIIARDSOX. 545 



Color white. 



Three specimens were found in the stomach of ii cod, tuken by thi^ 

 IT. S. Fish Commission steamer A/hatross, 

 Dej)f/i.—l()5 fathoms. 

 Tt/jH'.—Cat. No. 23909, IT. S.N. M. 



112. EDOTEA TRILOBA (Say). 



Idotea triloba Say, Jour. Acad. Nat. Sci. Phila., I, 1818, p. 425. — Milne-Edwards, 

 Hist. Nat. des Crust., Ill, 1840, p. 134. 



J:v.ra trUoha White, List Crust. Brit. Mas. , 1847, p. 97. 



EpeJijK irUobns Smith, Report U. S. Commissioner of Fish and Fisheries, 1874, 

 Pt. 1, p. 571 (277), ph VI, fig. 28.— Verrill, Am. Jour. Sci., VII, 1874, p. 135; 

 Proc. Amer. Assoc, 1873, p. 372, 1874; Report U. S. Commissioner of Fish 

 and Fisheries, 1874, Pt. 1, p. 370 (76) .— Harger, Prce. U. S. Nat.Mus., II, 

 1879, p. 160; Report U. S. Commissioner of Fish and Fisheries, 1880, Pt. 6, 

 pp. 358-359, pi. Yii, figs. 42 and 43. 



Edutea triloba Miers, Jour. Linn. Soc. Lond., XVI, 1883, p. 70-71. 



Halntat. — Eg-g Harbor, New Jerse,y; Savin Rock, near New Haven, 

 Connecticut; Noanlv Harbor, Connecticut; Vineyard Sound, Province- 

 town, Massachusetts; near Cape Cod; Gloucester; 30 miles northeast 

 of Portland, Casco Ba}', Maine. 



De_pth. — Surface to one-half fathom. 



113. EDOTEA MONTOSA (Stimpson). 



Idotea montosa Stimpson, Mar. Inv. Grand ^lanan, 1853, p. 40. 



Epeh/s montosus Harger, Report U. S. Couimissioner"of Fisli and Fisheries, Pt. 1, 

 1874, p. 571 (277); Proc. U. S. Nat.Mus., II, 1879, p. 161.— Verrill, Am. 

 Jour. Sci., VII, 1874, p. 45; Proc. Amer. Assoc, p. 367, 1874; Report U. S. 

 Commissioner of Fish and Fisheries, Pt. 1, 1874, p. 370 (76). — Smith and 

 Harger, Trans. Conn. Acad., Ill, 1874, p. 3. — Harger, Report U. S. Com- 

 missioner of Fish and Fisheries, 1880, Pt. 6, p. 359-360, pi. viii, figs. 44-47. 



Edotea »(rmtosa Miers, Jour. Linn. Soc Lond., XVI, 1883, p. 72. 



JIah/tat. — Block Island Soiuid; Long Island Sound; Vineyard Sound; 

 Eastport, Maine; Georges Bank; Stellwagens Bank; Casco Ba}^; Bay 

 of Fundy; Halifax, Nova Scotia; Grand Manan. 



DejAh.—'l to 40 fathoms. 



Family XIH. ARCTURID.E. 



analytical key to the (;ENERA of ARCTURIDiE. 



a. Fourth segment of thorax not greatly longer than others. Marsupium of female 

 composed of four pairs of plates 47. Arcturus. 



a' . Fourth segment of thorax much longer than any of the others. ^Marsupium of 



female consisting of two plates affixed to this segment 48. A.stacilla. 



Proc. N. M. vol. xxiii 35 



