270 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 21 



Description: Carapace pyriform, gibbous, rounded, polished, some- 

 what hairy; the regions elevated, particularly the gastric and cardiac, 

 the latter forming a rounded tubercle; lateral margins entire. Rostrum 

 straight, much produced, nearly half as long as the rest of the carapace, 

 bifid at the extremity, with a slight groove continued backwards from 

 the bifurcation. [ Antennules] inserted at the base of the rostrum ; 

 [antennae] placed at the sides of the rostrum, the basal [article] reaching 

 to about half its length, almost wholly exposed above, slightly tapering 

 towards its extremity, extremity bearing a small external tooth ; the 

 movable portion setaceous, extending a little beyond the apex of the 

 rostrum, the second and third [articles] cylindrical, and much larger 

 than the terminal portion. External [maxillipeds] with the [exognath] 

 semifusiform ; the [ischium] of the [endognath] elongate, rhomboid; the 

 [merus] an irregular four-sided figure, the margins entire. 



[Chelipeds] longer than the body, the arm three-sided, having a 

 toothed carina above and two carinae beneath, the outer minutely ser- 

 rated ; the hands slightly compressed, smooth ; the fingers, when closed, 

 in contact throughout their whole length, the half towards the apex 

 being serrated, and a tubercle of the immovable finger received into a 

 corresponding excavation in the movable one. [Ambulatory legs] com- 

 pressed, carinated and hairy above, the [first] pair longer than the 

 [cheliped], the rest becoming gradually shorter. 



Abdomen in the male seven-segmented, the [segments] becoming 

 gradually smaller from the third to the last. (Bell, modernized as to 

 terminology) 



Material examined: None. 



Measurements: Male holotype, length 4 lines (10.16 mm), width 

 2.5 lines (6.35 mm). 



Habitat: Sandy mud. [Note: Pelia elsewhere is sponge-covered.] 



Depth: 6 fathoms. [Note: Pelia pacifica of the mainland is inter- 

 tidal.] 



Remarks: While Bell's description gives at least two apparently valid 

 criteria, rostral length and exposed basal antennal article, on which to 

 separate Pelia pulchella of the Galapagos from either P. tumida or P. 

 pacifica of the mainland, Bell's figures leave some room for doubt as to 

 the first of these. His figure 2 shows the antennal flagellum extending 

 barely to the tip of the rostrum, but his figure 2d depicts the flagellum 

 as exceeding the rostrum in length, while the second movable article falls 

 short of it. This resembles the situation found in P. tumida, which P. 

 pulchella further resembles with respect to narrowness of body and elon- 



