INACHID.E 29 



Color in life varies from dark brown to tan, the lighter shades being 

 found in young and apparently in recently moulted individuals in which 

 also the dark spots mentioned by Holmes are inconspicuous or absent. 

 Underparts reddish, often a bright brick red, sometimes with light mark- 

 ings on the coxae of the ambulatory legs and on the external maxillipeds. 



The following are the measurements of a large male and female. 



MALE FEMALE 



Length, tip of rostrum to back of carapace 170 mm. 92 mm. 



Width of carapace at first antero-lateral tooth .... 84 78 



Width of " " second " " 93 82 



Length of chelipeds 195 90 



Length of first ambulatory leg 163 118 



(Epialtus nuttallii Randall distinguished from E. productus by 

 much less prominent lateral teeth and the absence of the postocular tooth 

 occurs at San Diego and Santa Barbara and may be found to extend 

 as far north as Monterey.) 



Genus PUGETTIA Dana. 



Pugettia Dana, Amer. Journ. Sci. and Arts, ser. 2, vol. xi, 268, 1851 ; U. S. Explor. 

 Expd., Crust., xiii, 84, 1852 (Type Pugettia gracilis Dana). 



Key to species. 

 a. Post-ocular spine and first antero-lateral tooth united by a leaf-like 



expansion of the carapace. P. gracilis 



aa. Post-ocular spine and first antero-lateral tooth acute and distinct. 



P. richii 



Pugettia gracilis Dana. 

 Plate IV, fig. 10. 



Pugettia gracilis Dana, Am. Journ. Sci. (2), xi, 268, 1851. Holmes, Occas. Papers 

 Calif. Acad. Sci., vii, 25, 1900, and synonymy. Rathbun, H. A. E., x, 173, 1904. 



Aleutian Is. to southern California; Rathbun, Holmes. It seems 

 rather surprising that among the large series of Pugettia examined this 

 species should not appear though reported from both north and south of 

 the Bay. I have examined specimens from Alaska. 



