l8 TRUE CRABS OF MONTEREY BAY 



Subtribe OXYSTOMATA. 



Family DORIPPID^E. 



Genus CLYTHROCERUS A. Milne Edwards & Bouvier. 



Clythrocerus A. Milne Edwards & Bouvier, Bull. Mus. Hist. Nat. Paris, v, 387, 1899 

 (Type Clythrocerus nitida A. Milne Edwards). 



Clythrocerus planus (Rathbun). 



Cychdorippe plana Rathbun, Amer. Nat., xxxiv, 519, 1900. 

 Clythrocerus planus Rathbun, H. A. E., x, 168, 1904. 



"Catalina and possibly Monterey. . . .under 50 fathoms " (Rathbun). 

 In the American Naturalist the footnote giving the type locality is erron- 

 eously attached to C. nitida A. Milne Edwards, an Atlantic form. I have 

 seen no specimen of this species. 



Family LEUCOSIIDJE. 

 Genus RANDALLIA Stimpson. 



Randallia Stimpson, Proc. Bost. Soc. Nat. Hist., vi, 85, 1857 ; Journ. Bost. Soc. Nat. 

 Hist., vi, 471, 1857 (Type Randallia ornata (Stimpson)). 



Key to species. 



a. Carapace of adult nearly smooth, young with unequal smooth tubercles, 

 size large. R. ornata 



aa. Carapace of adult covered with nearly equal minutely spinous tuber- 

 cles, size small. R. bulligera 



Randallia ornata (Randall). 

 Plate I, fig. 3. 



Ilia ornata Randall, Journ. Acad. Nat. Sci. Phila., viii, 129, 1839. 

 Randallia ornata Holmes, Occas. Papers Calif. Acad. Sci., vii, 100, 1900, and 

 synonymy. Rathbun, H. A. E., x, 170, 1904. 



Represented in the collection by a few adults brought in by Chinese 



fisherman, and several immature specimens about 10 mm. long. 



