No. 10 GARTH : BRACHYURAN FAUNA OF THE GALAPAGOS 477 



58-33. Cormorant Bay, Charles Island, shore, Feb. 6, 1933, 2 males, 



2 females (1 ovig.). 

 62-33. Black Bight, Albemarle Island, shore, Feb. 8, 1933, 3 females. 

 76-33. Cartago Bay, Albemarle Island, shore, Feb. 14, 1933, 1 male. 

 82-33. Conway Bay, Indefatigable Island, shore, Feb. 17, 1933, 3 



males, 2 females. 

 85-33. North Seymour Island, shore, Feb. 18, 1933, 1 male. 

 93-33. Darwin Bay, Tower Island, shore, Feb. 22, 1933, 2 males. 

 96-33. Darwin Bay, Tower Island, shore, Feb. 24, 1933, 1 male. 

 98-33. Darwin Bay, Tower Island, shore, Feb. 25, 1933, 2 specimens. 

 202-34. Gardner Bay, Hood Island, shore, Jan. 31, 1934, 1 large 



female. 

 306-35. Marchena Island, shore, Dec. 2, 1934, 2 males. 

 314-35. Academy Bay, Indefatigable Island, shore, Dec. 7, 1934, 1 



male. 

 789-38. South Seymour Island, shore, Jan. 19, 1938, 1 large female. 



Measurements. — Largest male: length 57 mm, width 86 mm, cheliped 

 (rigid) coxa to elbow 45 mm, elbow to tip of dactyl 73 mm, chela 67 mm, 

 dactyl 37 mm; large female: length 53.5 mm, width 82 mm, cheliped 

 (rigid) coxa to elbow 38 mm, elbow to tip of dactyl 60 mm, chela 56 mm, 

 dactyl 28 mm. 



Habitat. — Shore, typically under large, columnar boulders of lava, 

 which have to be pried apart with a crowbar. 

 Depth. — Shore. 



Remarks. — Galapagos specimens of O. verreauxii attain large size. 

 They are more secretive than other members of the genus, which accounts 

 for their relative scarcity in collections. 



Ozius perlatus Stimpson 

 Plate 81, Fig. 2 



Ozius perlatus Stimpson, Ann. Lye. Nat. Hist. New York, vol. 7, p. 211 

 (83), 1860. Rathbun, Bull. 152, U.S. Nat. Mus., p. 543, pi. 221, 

 figs. 1 and 2, 1930. Boone, Zoologica, vol. 8, no. 4, p. 228, fig. 84, 

 1927. Sivertsen, Med. fra det Zool. Mus., Oslo, nr. 38, p. 17, 1933. 

 Schmitt, Smithsonian Misc. Col., vol. 98, no. 6, p. 25, 1939. 

 Type locality. — Cape San Lucas, Lower California. 

 Types. — Cotypes in MCZ, No. 1256. 



Range. — From Cape San Lucas, Lower California (Xantus), to 

 Santa Elena, Ecuador (Schmitt) ; Galapagos Islands, (Arcturus). 

 Atlantic analogue. — O. reticulatus (Desbonne and Schramm). 



