QUEEN CHARLOTTE ISLANDS. 207 B 



Metacarcinus magister A. Milne-Edwards, Annales Sci. Nat., IV., xviii., p. 33, 

 1862 ; op. cit., V., i., p. 67, 1864 ; Nouvelle Archives Mus. Hist. 

 Nat., Paris, i., p. 201, pi. 19, fig. 1, 1865. 



A large carapax from the Queen Charlotte Islands. 



Cancer productus Eandall. 



Kandall, Jour. Acad. Nat. Sci., Philadelphia, viii., p 116, 1839. — Dana, 

 United States Exploring Expedition, Crust., p. 156, pi. 7, fig. 3. — 

 Stimpson, Jour. Bost. Soc. Nat. Hist., vi., p. 461 (21), 1857. 

 Cancer perlatus Stimpson, Proceedings California Acad. Nat. Sci., i., p. 88, 

 1856. 



Yirago Sound, 15 to 8 fath. ; mouth of Cumshewa Harbour, 20 fath. ; 

 and shallow dredging ; all from the Queen Charlotte Islands. 



Cancer antennarius Stimpson. 



Stimpson, Proceedings California Acad. Sci., i., p. 88, 1856 ; Jour. Bos. Soc. 

 Nat. Hist., vi., p. 442 (22), pi. 18, 1857. 



? Platycarcinus recurvidens Bate, in J. K. Lord, Naturalist in Vancouver 

 Island, ii., p. 269, 1866. 



Small alcoholic specimens from Yirago Sound, 15 to 8 fath., aud 20 

 fath., mouth of Cumshewa Harbour, Q.C.I. A dry carapax from the 

 same group of islands (no special locality given) is 83 mm - long and 133 

 broad. 



Trichocarcinus Oregonensis Miers. 



Tricocera Oregonensis Dana, United States Exploring Expedition, Crust., p. 



299, pi. 18, fig. 5, 1852. 

 Trichocarcinus Oregonensis Miers, Proceedings Zool. Soc. London, 1879, p. 34 

 {Tricocera De Haan, 1833, preoccupied). 



A young specimen from Vancouver Island, and the carapax and 

 chelipeds of a larger specimen from the Queen Charlotte Islands. 

 These specimens agree with Dana's description and figure, except that 

 the teeth of the postero-lateral margin are more indistinct than shown 

 in his figure, some of them being nearly or quite obsolete. In all the 

 larger specimens which I have examined, the dorsal surface of the 

 carapax is rougher and the areolets more protuberant than in small 

 specimens, and in very small specimens the carapax is nearly smooth 

 and regularly convex. 



A small specimen, dredged by Mr. J. Eichardson in the Gulf of 

 Georgia in 1875, and referred to by Mr. Whiteaves as Trichocera 

 Oregonensis? on my authority (Canadian Naturalist, Vol. viii., No. 8, 

 1878), appears to represent a distinct species. I have seen another 

 and much larger specimen of the same form from Washington Terri- 

 tory, collected by J. G. Swan (Smithsonian Institution). In this 

 species the antero-lateral margin of the carapax is strongly upturned, 



