126 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.21 



length from the first to the fourth. Dactyli varying little in length; 

 the distal portion of the propodi of last three pairs slightly thickened 

 and curved. (Rathbun, 1902b, modified) 



The brief last paragraph of the original description was later ex- 

 panded as follows: Basal antennal article narrowed anteriorly, deeply 

 concave, lateral margins prominent. Chelipeds moderately roughened, 

 chiefly on the margins, a few tubercles on the carpus, manus swollen, 

 fingers narrowly gaping except near tips. Legs of moderate length, first 

 pair two and a half [two and three-fourths] times length of carapace, 

 dactylus short, slender, curved, propodus five times as long as dactylus. 

 Remaining legs respectively twice, one and two-thirds and one and a 

 half times the carapace length ; dactyli of similar length and curvature, 

 the second a little slenderer. Propodites distally thickened and bent 

 upward, the amount of thickening increasing from second to fourth leg. 

 The second propodus two and a half times its dactylus, the third twice, 

 and the fourth a little less than twice its dactylus. (Rathbun, 1925) 



Supplementary description : The merus of the external maxilliped is 

 produced at the anterointernal angle. There is a single tubercle on the 

 mid-line of the first abdominal segment of the male, and a pair of 

 tubercles in advance of the abdomen and opposite the coxae of the 

 chelipeds. 



Material examined: 50 specimens from 24 Galapagos stations (see 

 Garth, 1946, p. 369). 



Measurements: Largest male, rostrum damaged: length 14.3 mm, 

 width 12.1 mm, cheliped 20.2 mm, chela 9.2 mm, dactyl 4.7 mm, first 

 ambulatory leg 42.4 mm. Ovigerous female: length 15.6 mm, width 

 12.4 mm (largest specimen of record). 



Color in life: Frontal, gastric, and cardiac areas brick red. Branchial 

 areas a little lighter and with a few light patches. Chela carrot red. 

 Ventral side dark coral pink. Eye brownish black. (Petersen) 



Habitat: Rock, sand, shell, coral, and nullipore bottoms. (Garth) 



Depth: 3-70 fathoms. 



Breeding: Ovigerous females of a size range from 7.9 to 15.6 mm 

 were dredged by the Velero III in the months of December and January. 



Remarks: A Galapagos endemic species, Podochela margaritaria is 

 undoubtedly related to American mainland forms through P. vestita, 

 from which it may be distinguished by its more sharply produced and 

 medially carinate rostrum, by the absence of a postorbital granule, and 

 by the granulate, rather than vermiculate, sternum of the male. The 



