1921] Schmitt: The Marine Decapod Crustacea of California 207 



Pugettia richii Dana 



Plate 33, figure 6 



Pugettia richii Dana, Amer. Jour. Sci. (2), 11, 268, 1851; Crust. U. S. 

 Expl. Exped., 1, 118, 1852, pi. 4, fig. 4, 1855; Holmes, Oceas. Papers 

 Calif. Acad. Sci., 7, 24, 1900; Bathbun, H. A. E., 10, 173, 1904; Wey- 

 mouth, Stanford Univ. Publ., Univ. Ser., no. 4, 30, pi. 4, fig. 11, 1910. 



Fig. 129. Pugettia richii, $, dorsal view of carapace and chelipeds, X % 

 (after Dana). 



Characters. — Carapace ovate, tuberculated ; median region tumid and furnished 

 with four tubercles, the three anterior of which are nearly abreast (median one a 

 little in advance of the others) ; two double rows of curved setae in front Of lateral 

 tubercles, and two similar rows on the rostrum; cardiac and intestinal regions 

 each with a tubercle; two tubercles on branchial region, one before the other. 

 Eostrum prominent, horns divaricate and convex above, triangular notch between 

 them hairy. Preoeular tooth acute and directed forward, outward and upward; 

 postocular acute and triangular. Hepatic expansion of carapace narrow, trans- 

 verse, postocular and first anterolateral tooth acute and distinct ; at posterolateral 

 angle of carapace there is a prominent pointed tubercle. Surface of ischium of 

 maxillipeds plane, but sometimes bearing a trace of a longitudinal groove; 

 exognath not grooved. Chelipeds large in adult males, much shorter and more 

 slender in females; the merus bears a few tubercles on the upper side but no 

 carina, but it is generally rounded in young males and females; the carpus has 

 two or three carinae which become more or less prominent in old males; hands 

 compressed, upper edge acute ; fingers shorter than the palm, and gaping at the 

 base in old males. 



Dimensions. — Type, male : length of carapace 48.7 mm., width between tips of 

 teeth across gastric region 32.6 mm., width between tips of teeth across cardiac 

 region 36 mm. Large male : from tip of rostrum to back of carapace 40 mm., width 

 between the tips of the posterior teeth 30 mm. (25 mm. between their bases) 

 (Weymouth). 



Color. — In life red, varying from bright to dark, and often closely matching 

 certain of the encrusting corallines (Weymouth). 



Type Locality. — California. 



Distribution. — British Columbia to San Diego, California, low tide (Bathbun). 



