No. 10 garth: brachyuran fauna of the galapagos 457 



B^ Chelae spinulous ; manus without grooves, outer distal two- 

 thirds smooth and bare M. frasert 



A^ Carapace smooth and punctate posteriorly, granulate anteriorly. 

 Chelae smooth, dissimilar ; fingers of minor manus strongly 

 deflexed M. polita 



Micropanope xantusii (Stimpson) 

 Plate 77, Fig. 6 



Xanthodes xantusii Stimpson, Ann. Lye. Nat. Hist. New York, vol. 10, 



p. 105 (15), 1871. 

 Micropanope xantusii Rathbun, Bull. 152, U.S. Nat. Mus., p. 438, pi. 



179, figs. 1-4, 1930. Crane, Zoologica, vol. 22, no. 3, p. 72, 1937. 

 Pilumnus beebei Boone, Zoologica, vol. 8, no. 4, p. 219; not fig. 80, which 



is a Micropanope of another species. 

 Xanthias serrulate Finnegan, Journ. Linn. Soc. London, vol. 37, p. 634, 

 fig. 6, 1931. 



Type locality. — Cape San Lucas, Lower California. 

 Type. — Not extant. 



Range. — Arena Bank, Lower California (Zaca); Clarion Island 

 (Hanna and Jordan) ; Galapagos Islands (Arcturus). 

 Atlantic analogue. — M. truncatifrons Rathbun. 

 Diagnosis. — Carapace covered with granulations arranged in trans- 

 verse lines. Chelipeds coarse granulate, 3 prominent sulci on superior 

 margin of manus. Five anterolateral teeth, the last plainly discernible. 

 Material examined (497 specimens from 38 stations). — 

 24-33. Gardner Bay, Hood Island, shore, Jan. 24, 1933, 7 males, 3 



females. 

 27-33. Gardner Bay, Hood Island, shore, Jan. 25, 1933, 16 males, 17 



females ( 7 ovig. ) . 

 28-33. Gardner Bay, Hood Island, 2 fms, Jan. 25, 1933, 2 males. 

 30-33. Gardner Bay, Hood Island, shore, Jan. 26, 1933, 17 males, 15 



females. 

 33-33. Black Beach, Charles Island, shore, Jan. 27, 1933, 5 males, 2 



females (1 ovig.). 

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



3 males, 1 ovig. female. 

 46-33. Barrington Island, 4-10 fms, Feb. 2, 1933, 1 female. 

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

 69-33. Albemarle Point, Albemarle Island, shore, Feb. 11, 1933, 20 

 males, 16 females. 



