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University of California Publications in Zoology [Vol. 23 



Pugettia gracilis Dana 



Plate 33, figure 7 



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

 Expl. Exped., 1, 117, 1852, pi. 4, fig. 3, 1855; Holmes, Oeeas. Papers 

 Calif. Aead. Sci., 7, 25, 1900; Eathbun, H. A. E., 10, 173, 1904; Wey- 

 mouth, Stanford Univ. Publ., Univ. Ser., no. 4, 29, pi. 4, fig. 10, 1910; 

 Way, Puget Sd. Mar. Sta. Publ., 1, 370, fig. 21, 1917. 



Eig. 128. Pugettia gracilis, <$; a, dorsal view, X % ; b, ventral view of an- 

 terior portion, X 3% (after Dana). 



Characters. — Carapace lyrate to broadly ovate, tuberculated ; number and posi- 

 tion of tubercles similar to P. richii, except middle anterior tubercle is small and 

 sometimes obsolete, and cardiac tubercle may become scarcely visible in old 

 specimens. Eostrum less prominent than in P. richii. Preocular tooth quite 

 broad, postocular tooth triangular, acute, and pointing more nearly forward than 

 in P. riohii. Hepatic expansion very wide, postocular spine and first anterolateral 

 tooth united by a leaf -like expansion of the carapace; posterior margin of first 

 anterolateral tooth nearly longitudinal. Posterolateral tubercle smaller than in 

 P. richii. Ischium of maxillipeds with a longitudinal groove; exognath also 

 grooved. Merus of chelipeds with a prominent, irregularly dentate carina on 

 upper side; carpus cristate. 



Dimensions. — Type, female: 33.9 mm., width across from tip to tip of lateral 

 spines 23.9 mm. 



Color. — Of dorsal surface usually greenish brown, and of ventral side much 

 lighter; but specimens found among red algae are a brilliant red (Way). 



Type Locality. — Puget Sound. 



Distribution. — Prom Aleutian Islands to southern California, low tide to 40 

 fathoms ( Eathbun ) . 



Remarks. — In the figure given above, the left side of the carapace shows 

 posteriorly an abnormal occurrence of a second spine. 



