452 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 5 



Type locality. — Cape San Lucas, Lower California. 

 Tj;i!>^.— Cotypes in MCZ, No. 1254. 



Range. — From La Paz, Lower California (Belding), to Salinas, 

 Ecuador (Schmitt) ; Galapagos Islands (Hult). 



Diagnosis. — Carapace flat, octagonal, anterolateral margin very thick 

 between orbit and first of 3 laterally placed teeth. Ambulatory legs com- 

 pressed, crested, eroded. 



Material examined (129 specimens from 32 stations). — 

 27-33. Gardner Bay, Hood Island, shore, Jan. 25, 1933, 2 males, 2 



females (1 ovig.). 

 30-33. Gardner Bay, Hood Island, shore, Jan. 26, 1933, 3 males, 1 



female. 

 33-33. Black Beach, Charles Island, shore, Jan. 27, 1933, 8 males, 1 



female. 

 38-33. SE of Cormorant Point, Charles Island, shore, Jan. 29, 1933, 



1 male, 1 female. 

 42-33. Chatham Island, opposite Kicker Rock, shore, Jan. 31, 1933, 



1 male. 



47-33. Barrington Island, 2 fms, Feb. 2, 1933, 1 specimen. 

 48-33. Barrington Island, shore, Feb. 2, 1933, 1 ovig. female. 

 69-33. Albemarle Point, Albemarle Island, shore, Feb. 11, 1933, 4 



males, 3 females. 

 71-33. James Bay, James Island, shore, Feb. 12, 1933, 1 male, 1 



female. 

 73-33. Cartago Bay, Albemarle Island, shore, Feb. 13, 1933, 1 female. 

 76-33. Cartago Bay, Albemarle Island, shore, Feb. 14, 1933, 3 males, 



2 females. 



80-33. Duncan Island, shore, Feb. 15, 1933, 1 male, 1 female. 

 88-33. South Seymour Island, shore, Feb. 19, 1933, 1 female. 

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

 101-33. Darwin Bay, Tower Island, shore, Feb. 26, 1933, 2 males. 

 166-34. Black Beach, Charles Island, shore, Jan. 19, 1934, 1 female. 

 168-34. Academy Bay, Indefatigable Island, shore, Jan. 20, 1934, 1 



female. 

 179-34. Bartholomew Island near James Island, shore, Jan. 23, 1934, 



1 large male. 

 199-34. Black Beach, Charles Island, shore, Jan. 30, 1934, 1 male. 

 202-34. Gardner Bay, Hood Island, shore, Jan. 31, 1934, 4 males, 4 



females. 

 313-35. Black Beach, Charles Island, shore, Dec. 6, 1934, 1 female. 

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



male, 3 females (1 ovig.). 



