No. 10 GARTH : BRACHYURAN FAUNA OF THE GALAPAGOS 443 



345-35. South Seymour Island, 30 fms, Dec. 13, 1934, 1 female. 

 346-35. Between South Seymour and Daphne Islands, 55 fms, Dec. 



13, 1934, 1 female. 

 788-38. SE of Daphne Major Island, 55 fms, Jan. 19, 1938, 1 female. 

 795-38. Sulivan Bay, James Island, 35-40 fms, Jan. 21, 1938, 3 females 



(1 ovig.). 

 810-38. (D-1) Barrington Island, 48 fms, Jan. 26, 1938, 3 males, 1 



female. 

 810-38. (D-2) Barrington Island, 73 fms, Jan. 26, 1938, 1 male, 1 



young. 

 816-38. North of Hood Island, 50-100 fms, Jan. 29, 1938, 1 female. 

 Measurements. — Largest male: length 16.4 mm, width 22.7 mm, 

 cheliped 27.0 mm, chela 15.7 mm, dactyl 8.7 mm; largest female: length 

 12.7 mm, width 18.4 mm. 



Color in life. — Ground color of carapace orange chrome. Granules 

 dark grenadine red, giving carapace a bright orange-red color. Frontal, 

 intestinal, and anterolateral areas bright ox-blood red. Marginal teeth 

 and hepatic region white with yellowish tint. Chela same color as carapace 

 externally. Dactyls dark Indian red, tips almost white. Ambulatory legs 

 like carapace but granules a shade darker, bands white. (Petersen) 



Habitat. — Rock, rock and sand, rock and shell, rock and coral, rock 

 and nullipore; sand, sand and coralline; mud and shell. 

 Depth.— 5y2-\50 fms. 



Remarks. — M. lobipes was taken in many of the same dredge hauls as 

 Actaea crosslandi (Finnegan). The two species have much in common 

 but may always be distinguished by the cristate legs of M. lobipes, those 

 of A. crosslandi being spiny granulate. 



Medaeus spinulifer (Rathbun) 

 Plate 75, Figs. 5, 6 



Pilumnus spinulifer Rathbun, Proc. U.S. Nat. Mus., vol. 21, p. 585, pi. 

 42, figs. 6-8, 1898; Proc. Washington Acad. Sci., vol. 4, p. 281, 

 1902. Boone, Zoologica, vol. 8, no. 4, p. 217, fig. 79, 1927. Finnegan, 

 Journ. Linn. Soc. London, vol. 37, p. 643, 1931. 

 Medaeus spinulifer Rathbun, Bull. 152, U.S. Nat. Mus., p. 276, text fig. 

 45, 1930. 



Type locality. — Off Cape San Lucas, 31 fms. 

 T>>/.e.— USNM No. 21582. 



Range. — Cape San Lucas, Lower California (Albatross); Galapagos 

 Islands (Hopkins-Stanford Expedition) ; 2}^-3l fms. 



