DECAPODS 6l 



B". Third maxilliped without exopod or epipod. Thoracic feet 



without epipods gracilis. 



B'". Exopods and epipods unknown amabilis, layi. 



SPIRONTOCARIS PRIONOTA (Stimpson). 



Hippolyte prionota STIMPSON, Proc. Acad. Nat. Sci. Phila., 153, 1864. 

 KINGSLEY, Bull. Essex Inst., xiv, 127, pi. u, fig. 9, 1883. SHARP, 

 Proc. Acad. Nat. Sci. Phila., 117, 1893. 



Spirontocaris prionota WALKER, Trans. Liverpool Biol. Soc., XII, 277, 1898. 



Spirontocaris prionata HOLMES, Occas. Papers Calif. Acad. Sci., VII, 206, 

 1900. 



To Kingsley's figure one must add 2 or 3 supraorbital spines arranged 

 in a longitudinal series. While 3 seems to be the normal number, the 

 anterior one is often reduced and sometimes wanting. 



Distribution. From Bering Sea to Monterey, California: 

 Dutch Harbor, Unalaska, and Kadiak (Harriman Expedition, W. R. Coe). 

 Collected by W. H. Dall at Cape Etolin, Nunivak Island, 8 fathoms ; 



Captains Harbor, Unalaska, 9 and 80 fathoms; Coal Harbor, Unga, 



8-9 fathoms; Belkofski Bay, 15-25 fathoms; Chiniak Bay, Kadiak; 



Chugachik Bay, Cook Inlet, 20-60 fathoms. 

 Dredged by the Albatross in Bristol Bay, Alaska, 7^ and 10^ fathoms, 



stations 3232 and 3233 ; off North Head, Akutan Island, 72 fathoms, 



station 2842; Unimak Pass, 34 fathoms, station 3220; North of Bird 



Island, Shumagins, 21 fathoms, station 2850; Admiralty Inlet, Puget 



Sound, 40 fathoms, station 2865. 

 Puget Sound (T. Kincaid). 

 Pacific Grove, California (J. O. Snyder). 

 Bering Island, 2-12 fathoms, some in stomach of Gadus macrocephalus 



(N. Grebnitzky). 

 Puget Sound (Stimpson) ; Marmot Isles, Alaska, 45 fathoms (Sharp) ; 



Monterey, California (Holmes). 



SPIRONTOCARIS GRCENLANDICA (J. C. Fabricius). 



Astacus Grcenlandicus J. C. FABRICIUS, Syst. Entom., 416, 1775; Entom. 



syst. auct. et emend., II, 484, 1793 (grcenlandiciis). 

 Cancer aculeatus O. FABRICIUS, Fauna Groenlandica, 239, 1 780. 

 Alpheus Aculeatus SABINE, in Supplement to Appendix of Parry's [First] 



Voyage, p. ccxxxvn, pi. n, figs. 9 and 10, 1824. 

 Hippolyte aculeata J. C. ROSS, in John Ross, Appendix to Narrative of a 



Second Voyage in Search of a North- West Passage, II, p. Ixxxiii, 1835. 

 Hippolite armata OWEN, in Zoology of Capt. Beechey's Voyage [of the 



Blossom}, Crustacea, p. 88, pi. xxvn, fig 2, 1839 ( $ ). 

 Hippolite cornuta OWEN, op. cit., p. 89, pi. xxvm, fig. 2, 1839 ( $ ). 

 Hippolyte graenlandica MIERS, Ann. Mag. Nat. Hist. (4), XX, 62 (12), 



1877. SMITH, Trans. Conn. Acad. Arts Sci., V, 85, pi. X, fig. 2, 1879. 

 Spirontocaris grcenlandica WALKER, Trans. Liverpool Biol. Soc., xii, 276, 



!898. HOLMES, Occas. Papers Calif. Acad. Sci., vil, 236, 1900. 



The number of spines on the abdomen is the same in the two sexes, 



