19 21 1 Schmitt: The Marine Decapod Crustacea of California 205 



ehelipeds of females and young males relatively smaller; fingers contiguous and 

 dentate along entire inner margin. Abdomen of female elliptical, seven- jointed, 

 counting telson ; of male, widest at third segment, narrowing rapidly to fifth 

 which is about equal to sixth, telson narrow and longer than preceding joint. 



Dimensions. — Type, male: length of carapace 27.9 mm., width 33.8 mm.; of 

 specimen examined by Holmes, length of carapace 30 mm., greater width 32 mm. 



Color. — A dull purplish tone, the legs crossed by light bands (Holmes). The 

 young and even mature (egg-bearing) individuals show considerable variation in 

 color, being in general tan or light reddish with the lateral expansions and marks 

 on the cardiac region lighter in some cases, almost white. One specimen had the 

 entire surface of the carapace, except the rostrum, the abdomen and the ehelipeds 

 clear white, while the remainder of the legs and rostrum were bright red. The 

 legs in the majority show more or less distinct banding. The adults are often 

 partially covered by a growth of bryozoa or sponges (Weymouth). 



Type Locality. — Monterey, California, taken from the stomach of percoid fishes, 

 "Cabesones. " 



Distribution. — From Unalaska, Alaska, to Mazatlan, Mexico (Eathbun). 



Genus Pugettia Dana 



Carapace with upper surface furnished with spines or tubercles; margins 

 behind eyes produced into an alate expansion, behind which it is somewhat con- 

 stricted. Eostrum two-spined. Basal antennal joint enlarged at base and nar- 

 rowing distally; flagellum of antennae riot entirely covered by the rostrum. Pre- 

 ocular spine present, large. 



Key to the California Species op Pugettia 



I. Postorbital projection a triangular tooth. 



A. Hepatic expansion very wide (postocular spine and first anterolateral 



tooth united by a leaf -like expansion of the carapace). Merus of 

 ehelipeds with a prominent, irregularly dentate carina on the upper 

 side, carpus cristate. Ambulatory legs with merus and propodus 

 more or less carinated above. Ischium of maxillipeds with a longi- 

 tudinal groove, exognath also grooved. 



gracilis, p. 206. 



B. Hepatic expansion narrow, transverse (postocular spine and first antero- 



lateral tooth acute and distinct). Merus of ehelipeds bears a few 

 tubercles on the upper side but no carina; the inner side may become 

 strongly ridged in adult males, but it is generally rounded in young 

 males and females, the carpus has two or three earinae, which become 

 more or less prominent in old males. Ambulatory legs with merus 

 and propodus not crested. Surface of ischium of maxillipeds plane, 

 but sometimes bearing a trace of a longitudinal groove, exognath 



not grooved. 



richii, p. 207. 



II. Postorbital projection an obtuse lobe. Merus of ehelipeds with an irregular 



carina on the upper and inner margins, carpus strongly carinated on the 



inner and upper margins, and irregularly ridged on outer side. Ambulatory 



legs with joints not carinated. Ischium of maxillipeds grooved. (Not 



known north of San Pedro.) 



dalli, p. 208. 



