232 SMITHSONIAN MISCELLANE;0US COLLECTIONS 



teriorly to the prominent first lateral tooth. Chelipeds long, spinu- 

 lose, and sparsely provided with long hairs ; marginal spines longest ; 

 carpus with one strong spine on the inner side and a smaller one 

 behind it ; hand rather depressed, uniformly roughened above with 

 asperities or short, broad spinules ; fingers scarcely gaping ; two low 

 teeth on the inner margin of the dactylus and one on that of the im- 

 movable finger corresponding to the interspace between them. 

 Meros- joint of the ambulatory feet rather narrow, with its superior 

 margin armed with equal, closely arranged spinules; dactylus with 

 a short supplementary unguiform tooth on the inner margin above 

 the true unguiculus. Dimensions : Length of carapax, 0.26 ; breadth, 

 0.19; length of rostrum, 0.09; of chelipeds, 0.6 inch. 



Females have more slender chelipeds, armed with longer spines, 

 and with the fingers scarcely toothed within. 



The species is of a bright red color, with a median white stripe 

 on the back. Feet pale orange. 



It dififers from G. vifiensis in its larger rostrum, the non-circum- 

 scribed gastric area, and the sharper external orbital angle; from G. 

 latirostris in its rostrum, which is longer, not subovate, and more 

 acutely toothed; from ''G. spinosirostris in its longer chelipeds, with 

 fewer spines on the inner side of the carpus. 



Dredged from a shelly bottom in twenty-five fathoms in Ly-i- 

 moon Passage, near Hongkong, China. 



Specimens probably of this species were obtained in the China 

 Sea, also at Ousima and in Kagosima Bay, which differ somewhat 

 from the above, the males having a somewhat longer and more 

 tapering carapax, with the gastric region better circumscribed ; the 

 chelipeds longer and often with gaping fingers, bearing a sharply 

 prominent tooth on the dactylus and none on the immovable finger. 

 This form appears to be connected with the type by intermediate 

 gradations, but if distinct might be named G. longiniana. 



354. GALATHEA ACANTHOMERA Stimpson 



Galathca acanthomera Stimpson, Proc. Acad. Nat. Sci. Phila., x, p. 252 

 [90], 1858. 



This species resembles G. orientaUs in the shape and armature of 

 the carapax and rostrum, except that the basal teeth of the rostrum 

 are larger. The chelipeds in our only specimen are wanting. The 

 ambulatory feet resemble those of G. spinosirostris. They are stout 

 and fringed above with plumose hairs ; the meros- joint is broad, with 

 eleven stout spines on the superior edge, with the outer surface 

 deeply marked with pubescent strigse, and with a spine at the in- 

 ferior extremity ; the carpus is four-spined above, and the dactylus 



