CRUSTACEA NORTH PACIl'IC EXPLORING EXPEDITION 79 



chelopoda, longer lateral spines and ambulatory feet, by the presence 

 of a tooth on the superior margin of the orbit, and in having the 

 lateral teeth or lobes of the interantennal front more prominent 

 than the median ones. 



This species is of a white color^ punctate with dark-brown. The 

 onl}' specimen taken is probably young. 



Dredged on a muddy bottom in "Ten-fathom-hole" in the harbor 

 of Port Lloyd, Bonin Islands. 



115. AMPHITRITE HAANII ' Stimpson 



. hiipliitrltc gladiator De Haan, Fauna Japonica. Crust., p. 39, pi. i, fig. 5. 



(non Lupa gladiator Milne Edwards). 

 .Iiuphitrite haanii Stimpsox, Proc. Acad. Nat. Sci. Pliila., x, p. 38 [36], 



1858. 



The Lupa gladiator of Milne Edwards is described by him as 

 "peu ou point granuleuse," and therefore can scarcely be the same 

 as the species figured by De Haan, for which we propose a separate 

 designation. 



The general color is orange or reddish, sometimes mottled with 

 white. The granules are often crimson. There are often bright 

 purple spots at the articulations of the posterior pair of feet. 



It was taken by us at the following localities : In the China Sea, 

 in the parallel of 23° N., in 20 fathoms, sandy bottom; at Tanega- 

 sima, in 12 fathoms, on clean white sand; in Kagosima Bay, at the 

 -depth of 15 fathoms. 



116. AMPHITRITE MEDIA= Stimpson 



Plate X, Fig. i 



Amphitritc media Stimpsox, Proc. Acad. Nat. Sci. Phila., x. p. 39 [2,^], 

 1858. 



This species is closely allied to A. haanii in general appearance, 

 in the character of the front, the granulated areas of the carapax, 

 etc., but appears constantly to dififer in the smaller size of the lateral 

 spine or posterior antero-lateral tooth, which is never more than 

 twice as long as the next one. And the antero-lateral teeth in both 

 of De Haan's figures are much more widely separated than in our 

 species, in which they are close together and curved forward. The 

 median teeth of the interantennal front are equal in size to the lateral 



"■ Portunus (Achelous) gladiator (Fabricius). 



" Combined, by Alcock, with the preceding species. 



