380 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 5 



Subfamily PiSINAE 



Genus PELIA Bell, 1835 



Pelia pulchella Bell 



Pelta pulchella Bell, Proc. Zool. Soc. London, vol. 3, p. 170, 1835; 

 Trans. Zool. Soc. London, vol. 2, p. 45, pi. 9, figs. 2, 2d-f, 1836. 

 Rathbun, Bull. 129, U.S. Nat. Mus., p. 284, pi. 241, figs. 1-4, 1925. 



Type locality. — Galapagos Islands, 6 fms, sandy mud. 



Type. — Not extant. 



Range. — Known only from the original specimen collected by Cuming 

 in 1829. 



Diagnosis. — Carapace pyrifonii, hairy, regions well defined. Rostrum 

 deeply cleft, equal to nearly one-half of carapace length. Male chelipeds 

 long, carinated, gap of movable finger closed by a tooth on pollex. Basal 

 article of antenna exposed in dorsal view. (Based on Bell's description.) 



Material examined. — None. 



Genus PISOIDES Milne Edwards and Lucas, 1843 

 Pisoides edwardsii (Bell) 



Hyas edwardsii Bell, Proc. Zool. Soc. London, vol. 3, p. 171, 1835; 



Trans. Zool. Soc. London, vol. 2, p. 49, pi. 9, fig. 5, 1836. 

 Pisoides edwardsii Dana, U.S. Expl. Exped., vol. 13, Crust., p. 87, 1852; 

 atlas, pi. 1, figs. 2a-b, 1855. Rathbun, Bull. 129, U.S. Nat. Mus., 

 p. 285, pi. 236, and synonymy, 1925. 



Type localities. — Valparaiso and Galapagos Islands. 



Type. — Not extant. 



Range. — From Panama (A. Milne Edwards) to Straits of Magellan; 

 Galapagos Islands (Bell). 



Diagnosis. — Carapace broadly triangular, longer than wide, gastric 

 and cardiac regions prominent. Rostrum deflected, horns broad and di- 

 vergent. Basal antennal article broad, a spinulous tubercle at its outer 

 angle ; succeeding articles wide, depressed, hairy. A large, acute postorbital 

 spine. 



Material examined. — None from Galapagos. The Hancock collections 

 contain specimens from the bays of San Juan and San Nicolas, Peru. 



Genus HERBSTIA Milne Edwards, 1834 

 Key TO THE Galapagos Species of the Genus Herbstia 



A^ Posterior margin of carapace strongly produced ; ambulatory legs 



longer than chelipeds H. pyriformis 



A^ Posterior margin of carapace rounded; ambulatory legs shorter 



than cheliped of adult male . . . . H. edwardsii 



