No. 10 GARTH : BRACHYURAN FAUNA OF THE GALAPAGOS 497 



Family PINNOTHERIDAE 



Subfamily PiNNOTHERINAE 



Genus PARAPINNIXA Holmes, 1894 



Parapinnlxa glasselli Garth 



Plate 84, Figs. 1, 2 



Parapinnlxa glasselli Garth, Allan Hancock Pac. Exped., vol. 5, no. 2, 

 p. 24, pi. 9, figs. 1-4, 1939. 



Type locality. — Tagus Cove, Albemarle Island, Galapagos Islands. 



Tj;/.^.— USNM No. 77367. 



Range. — Known only from the type locality. 



Diagnosis. — Displacement of first ambulatory leg equal to nearly one- 

 half the volume of carapace. Fingers long and slender, gaping when 

 closed, a small tooth near tips. Immovable finger curving well down- 

 ward. Lines separating abdominal segments sinuous. 



Material examined. — 

 66a-33. Tagus Cove, Albemarle Island, from "roach" trap attached to 

 fish trap suspended in 2 fms, Feb. 9, 1933, 2 females, including the 

 holotype (USNM No. 77367). 



Measurements. — Female holotype : length 2.8 mm, width 6.5 mm. 



Habitat. — Worm tubes. 



Depth. — 2-3 fms. 



Remarks. — The capture of two female specimens in a baited "roach" 

 trap, suspended in two fathoms of water attached to a lobster pot, suggests 

 that this species, while undoubtedly commensal, does not hesitate to fare 

 I'orth from its worm tube in search of food. 



The male of the species is unknown. 



Subfamily PiNNOTHERELIINAE 



Genus PINNIXA White, 1846 



Pinnixa transversalis (Milne Edwards and Lucas) 



Plate 84, Figs. 6-8 



Pinnotheres transversalis Milne Edwards and Lucas, d'Orbigny's Voy. 

 Amer. Merid., vol. 6, pt. 1, p. 23, 1843; vol. 9, atlas, pi. 10, figs. 

 Z-Zt, 1847. 

 Pinnixa transversalis Milne Edwards, Ann. Sci. Nat., ser. 3, Zool., vol. 

 20, p. 220 (186), pi. 11, fig. 5, 1853. Rathbun, Bull. 97, U.S. Nat. 

 Mus., p. 131, pi. 29, figs. 1-3, text figs. 74-76, and synonymy, 1918. 

 Finnegan, Journ. Linn. Soc. London, vol. 37, p. 648, 1931. 

 Type locality. — Chile. 

 Type. — In Paris Mus. 



