No. 10 garth: brachyuran fauna of the galapagos 435 



65-33. Reef north of Tagus Hill, Albemarle Island, reef, Feb. 9, 



1933, 1 male. 



69-33. Albemarle Point, Albemarle Island, shore, Feb. 11, 1933, 2 



young males. 

 73-33. Cartago Bay, Albemarle Island, shore, Feb. 13, 1933, 3 males. 

 76-33. Cartago Bay, Albemarle Island, shore, Feb. 14, 1933, 2 males, 



1 fragment. 



94-33. Darwin Bay, Tower Island, coral, Feb. 22, 1933, 1 male, 2 



females ( 1 ovig. ) . 

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

 154-34. Reef north of Tagus Hill, Albemarle Island, reef, Jan. 15, 



1934, 1 female. 



167-34. Post Office Bay, Charles Island, 15 fms, Jan. 19, 1934, 1 fe- 

 male. 



194-34. Post Office Bay, Charles Island, coral from Onslow Island 

 crater, Jan. 27, 1934, 1 female. 



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



344-35. Bartholomew Island near James Island, coral, Dec. 12, 1934, 



2 males. 



356-35. Gardner Bay, Hood Island, 12-15 fms, Dec. 17, 1934, 1 young. 

 357-35. Gardner Bay, Hood Island, coral, Dec. 17, 1934, 2 females. 

 784-38. Darwin Bay, Tower Island, shore, Jan. 17, 1938, 1 female. 

 789-38. South Seymour Island, shore, Jan. 19, 1938, 1 male (photo- 

 graphed ) . 

 796-38. Sulivan Bay, James Island, shore, Jan. 21, 1938, 1 male, 2 



females. 

 800-38. Cartago Bay, Albemarle Island, shore, Jan. 22, 1938, 1 male. 

 2 females. 

 Measurements. — Largest specimen, female: length 11.0 mm, width 

 17.0 mm, cheliped 14.0 mm, chela 7.5 mm, dactyl 4.3 mm. 



Color in life. — General appearance neutral red with bluish tinge. 

 Raised nodules on gastric, cardiac, and intestinal regions pale yellowish 

 white. Cheliped and legs neutral red. Fingers warm Van Dyke brown, a 

 touch of bright lavender at base of movable fingers, tips almost white. 

 Dactyls of ambulatory legs orange yellow at base fading to near white. 

 Nail pale yellow. (Petersen) 



Habitat. — Pocillopora^ or free living under rocks. 

 Depth. — Shore to 15 fms. 



Remarks. — Like A. dovii, this species is found most frequently in liv- 

 ing coral, but may be picked up from under rocks or dredged in 12-15 fms. 

 It is less abundant than A. dovii in the proportion of about 1 :5. 

 A. sulcata is now recorded from the Galapagos Islands. 



