COMPLETE HAIG: EASTERN PACIFIC PORCELLANIDAE 199 



Text-fig. 9. Basal segment of right antennule of 1, Porcellana Iiancocki, x 24; 

 2, P. rancrisocialis, x 24; 3, F. paguriconviva, x 23. 



Chelipeds covered with small flattened granules. Merus with a 

 broad, strongly projecting, triangular tooth or rounded lobe on anterior 

 margin ; anterior and posterior margins fringed with plumose hairs. 

 Carpus about one and a half times as long as broad, with a low rounded 

 lobe on proximal third of anterior margin ; scattered plumose hairs 

 near posterior margin. Palm (as well as fingers) lying in a nearly 

 horizontal plane, rather slender, dorsal surface somewhat swollen ; outer 

 half of dorsal surface and surface of pollex with short plumose hairs, 

 produced into a long fringe along outer margin. Gape of fingers 

 without pubescence. 



Walking legs long and slender, lightly rugose; merus of leg 3 not 

 inflated; all segments with a distinct fringe of plumose hairs along an- 

 terior margin, surface covered with scattered plumose hairs. 



Telson of abdomen with seven plates. 



Variations: In small specimens the lateral margin of the carapace 

 is more deeply notched at the cervical groove. The anterior carpal lobe 

 is very low and not armed with a spine in the largest individuals ex- 

 amined ; in smaller specimens it is somewhat more produced and bears 

 a narrow, distally directed spine at its distal end. 



Material examined: Entrance to Bahia de los Angeles, Gulf of 

 California, 25 fathoms; March 3, 1936; Velero III station 538-36; 

 male, holotype (Allan Hancock Foundation Cat. No. 363), and one ovi- 

 gerous female paratype. 



Entrance to Bahia de los Angeles, 25-40 fathoms; March 2, 1936; 

 Velero III station 535-36; one male and one ovigerous female, para- 

 types. 



Bahia de los Angeles, 32 fathoms; March 20, 1937; Velero III 

 station 701-37; three males, two females. 



