CRUSTACEA NORTH PACIFIC EXPLORI.NX EXPEDITION I95 



dilatation, broadest toward the hand ; hand thick, short-cihated ex- 

 teriorly, and with a few hairs about the middle within ; fingers short, 

 slightly unidentate within, tips curved ; dactJr'lus shorter than the 

 immovable finger. Ambulatory feet slender, naked ; one or two 

 small spinules on the inferior edge of the penult joint; dact_\"li with 

 one or two minute unguicles besides the principal one. In life this 

 species is of a clear, pale bluish-gray color, with large spots of a 

 neutral tint or sepia color. Length of the carapax in the male, 

 o. 15 ; breadth, 0.2; length of the larger cheliped. 0.52 inch. 



It A\'as dredged from a bottom of shelly sand in twenty-six fath- 

 oms, in the China Sea, under the twent}--third parallel of north 

 latitude. 



Genus RE^IIPES Latreille 



303. REMIPES TESTUDINARIUS ' Latreille 



Plate XIX, Fig. i 



Remlpes tcstudinarius Latreille, Gen. Crust, et Ins., v, i. p. 45. Milne 

 Edwards, Illust. Cuv. R. A., Crust., pi. xlii, fig. i. 



Our specimens are broad and depressed, with a single row of 

 ciliated pits or impressed lineolae along the postero-lateral margin. 

 Color above bluish-gra}', minutely clouded ; below white. We figure 

 one of our specimens, in order to indicate with more certainty the 

 species we have in hand, which we cannot certainly identify with 

 R. tcstudinarius. a species known to us only from the descriptions 

 and figures of European authors, who do not always agree in their 

 statements with regard to it. The figure in the "Regne Animal," 

 referred to above, is a good representation of the largest of our speci- 

 mens. But I\Iilne Edwards gives Australia as the habitat of the 

 species. 



The expedition specimens were foimd on the sand\" shore of a bay 

 on the eastern side of the island of Ousima. 



Genus M ASTIGOPrS Stimps..,, 



This genus is remarkable for the form of its anterior feet (for 

 which the name chelipeds would here be inapplicable), which re- 

 semble more antennae than feet, as seen in other genera of Deca- 

 poda. It is allied to Ronipcs in form and general character, but the 

 body is more slender. The carapax is elongated and toothed at the 



^ Hif>f>a adiutyla l-'ahricius 



