No. 10 GARTH : BRACHYURAN FAUNA OF THE GALAPAGOS 475 



Range. — Cape San Lucas, Lower California; also from Ecuador, if 

 Rathbun's synonymy of Ceratoplax ciliata Cano be accepted. 



Diagnosis. — Eyestalks elongate, compressed. Front fringed with long, 

 golden hair. Four teeth including orbital; teeth not produced. Chelipeds 

 hairy and with granulate ridges. 



Material examined (6 specimens from as many stations). — 

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



female. 

 101-33. Darwin Bay, Tower Island, shore, Feb. 26, 1933, 1 male 



(photographed). 

 170-34. East of Wreck Bay, Chatham Island, 32 fms, Jan. 21, 1934, 



1 specimen. 

 783-38. Darwin Bay, Tower Island, 40-70 fms, Jan. 16, 1938, 1 male. 

 785-38. Darwin Bay, Tower Island, 20-40 fms, Jan. 17, 1938, 1 



female. 

 811-38. Barrington Island, coral, Jan. 26, 1938, 1 female. 



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



14.4 mm, cheliped (rigid) coxa to elbow 7.0 mm, elbow to end of dactyl 

 7.5 mm, chela 6.5 mm, dactyl 4.1 mm; female: length 10.0 mm, width 



13.5 mm. 



Color in life. — Ground color of carapace white with bluish tinge, 

 densely covered with hair of a light, pale yellow tint. Scattered all over 

 are long hairs of bright red color to vermilion with light yellow to white 

 tips. An irregular spot of yellow orange on cardiac region, a vermilion 

 spot on gastric region, and a darker spot on branchial region. Cheliped 

 overcast with vermilion spots and covered with long hairs like those of 

 carapace. Carpus of ambulatory legs with tiny spots like those of cheliped ; 

 legs clothed with hair similar to that of carapace. Dactyls pale yellow. 

 (Petersen) 



Habitat. — Rocky shore ; coral ; sand bottom. 



Depth. — Shore to 70 fms. 



Remarks. — In the absence of Stimpson's type, or material from the 

 Gulf of California, it is a moot question whether the Galapagos specimens 

 are what Stimpson had. Certainly they are not the same as the Australian 

 specimen which Rathbun (1930, p. 534, pi. 215) considered conspecific 

 with the Stimpson specimen. Judging from the increasing number of 

 species known to be common to both Gulf of California and Galapagos 

 waters, the writer considers it much more probable that the above series 

 represents the true Acidops fimbriatus than does the Australian specimen. 



