492 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 5 



99-33. Darwin Bay, Tower Island, tangles, Feb. 25, 1933, 1 male, 

 1 ovig. female, 2 young. 

 lOla-33. Darwin Bay, Tower Island, coral, Feb. 26, 1933, 23 males, 13 



females (8 ovig.). 

 168a-33. Academy Bay, Indefatigable Island, coral, Jan. 20, 1934, 5 

 males, 3 females. 

 189-34. Cartago Bay, Albemarle Island, coral, Jan. 25, 1934, 6 males, 



5 females ( 4 ovig. ) . 

 202-34. Gardner Bay, Hood Island, shore, Jan. 31, 1934, 3 males, 1 



female. 

 315-35. Opposite Gordon Rocks, Indefatigable Island, 8-10 fms, Dec. 



8, 1934, 32 males, 26 females (20 ovig.), 2 young. 

 320-35. Academy Bay, Indefatigable Island, 8-10 fms, Dec. 8, 1934, 2 



males. 

 350-35. South Seymour Island, shore, Dec. 13, 1934, 1 male, 1 ovig. 



female. 

 782-38. Darwin Bay, Tower Island, shore, Jan. 16, 1938, 3 males, 2 



females (1 ovig.), 1 young. 

 784-38. Darwin Bay, Tower Island, coral, Jan. 17, 1938, 6 males, 



5 females (2 ovig.). 

 789-38. South Seymour Island, shore, Jan. 19, 1938, 1 male, 4 females 



(2 ovig.). 

 800-38. Cartago Bay, Albemarle Island, shore, Jan. 22, 1938, 3 speci- 

 mens. 

 811-38. Barrington Island, coral, Jan. 26, 1938, 206 specimens. 



Measurements. — A large, ovigerous female: length 13.3 mm, width 

 16.3 mm, cheliped 26.3 mm, chela 16.5 mm, dactyl 8.2 mm. 

 Color in life. — Bright red. 

 Habitat. — The Pocillopora coral colony. 

 Depth. — Shore to 10 fms. 



Remarks. — The collection of over 1,800 of this red porcelain crab 

 was almost involuntary. Every head of living Pocillopora coral contained 

 hundreds of specimens, and it was as convenient to preserve them as to 

 toss them overboard while cracking coral. In view of the exceeding abun- 

 dance of this species, it seems incredible that a single specimen obtained 

 by William Beebe and two specimens by Rolf Blomberg are the only 

 examples ever recorded from the Galapagos Islands. Apparently, no other 

 expedition has examined coral heads, for the Trapezias rarely stray beyond 

 the protecting labyrinth of their rasping branches. 



