246 University of California Publications in Zoology [Vol. 23 



Xanthias taylori (Stimpson) 



Plate 37, figure 8 



Xanthodes taylori Stimpson, Ann. Lye. Nat. Hist. N. Y., 7, 208, pi. 3, fig. 3, 

 1860 (1862) ; A. Milne Edwards, Crust. Reg. Mex., p. 260, pi. 45, fig. 3, 

 1879. 



Xanthias taylori Holmes, Oecas. Papers Calif. Acad. Sci., 7, 65, 1900; 

 Eathbun, H. A. E., 10, 185, 1904; Weymouth, Stanford Univ. Publ., 

 Univ. Ser., no. 4, 52, pi. 13, fig. 40, 1910; Baker, Eept. Laguna Mar. 

 Lab., 1, 102, fig. 54, 1912. 



Fig. 147. Xanthias taylori, $, chela, slightly enlarged (after A. Milne 

 Edwards). 



Characters. — Carapace flat behind, in front quite strongly convex longitudin- 

 ally but nearly plane transversely; lobes of front separated by a wide, rounded 

 notch and furnished with a rounded tooth at the inner and outer angles, between 

 which are several small baccate protuberances; inner orbital angle prominent, 

 separated by a deep notch from outer angle of front; upper orbital margin with 

 a rounded tooth which is bounded by a pair of sulci; postorbital tooth small and 

 continuous externally, with a rounded protuberance; the latter separated by a 

 smooth sulcus from a pair of smooth, rounded prominences, one of which is sit- 

 uated directly above the other; the three posterior teeth on the anterolateral 

 margin prominent, the last two curved forward, the first obtuse and generally 

 more or less bifid ; usually there is a small tooth behind the one at the anterolateral 

 angle. Chelipeds stout, more or less unequal ; carpus thickly covered with promi- 

 nent, rounded, smooth, glossy, rose colored tubercles; hand oblong, with palm 

 longer than wide, upper and outer surface covered with tubercles like those on the 

 carpus, arranged in seven or eight longitudinal rows; fingers stout and black 

 colored, color not extending back upon hand. 



Dimensions. — Type, female: length of carapace 17.3 mm., width 27.7 mm. An 

 egg-laden female measures 24.6 mm. long on the median line of the carapace and 

 42 mm. wide (Eathbun). 



Color. — In life a uniform dark red, lighter below, fingers black (Weymouth). 

 In the alcoholic specimen the carapace is rose color, like the tubercles of the 

 chelipeds, which are set on a bluish ground; fingers black, the black not spreading 

 on the hand (Stimpson). 



Type Locality. — Monterey, California. 



Distribution. — Monterey, California, to Magdalena Bay, Lower California. 

 Beach to 55 fathoms (Eathbun). 



Remarks. — Abundant under stones between tides and also in kelp holdfasts 

 from deeper water (Baker). 



