DECAPOD CRUSTACEANS OF THE BEAUFORT, N. C, REGION. 4II 



nearly equal in size, the right slightly larger than the left; hands and carpi coarsely tuberculate, the 

 tubercles dentate and setiferous on the upper surface, but becoming spinous along the inner margin. 

 Second and third pairs of legs slender, slightly exceeding the chelipeds and with the two distal articles 

 hairy. Fourth and fifth pairs of legs reduced, the fifth pair turned up against the side. 



Measurements of a male: Length of carapace, 12.5 mm.; eyestalks, 5.8 mm.; hand, 12 mm.; width 

 of front, 2.8 mm. 



This species has been secured by dredging in 8 to 12 fathoms 4 or 5 miles off Beaufort Inlet. 



Genus PAGURUS Fabricius. 



Pagurus Fabricius, 1793, p. 46S. 



KEY TO THE SPECIES OF THE BEAUFORT REGION. 



a. Eyestalks with the cornea dilated. 



b. Hands broad and flat; species reaching a rather large size pollicaris. 



bb. Hands subcylindrical; chelipeds rather slender; small species. 



c. Carpus as long as the palm and half the finger longicarpus. 



cc. Carpus barely longer than the palm corallinus. 



aa. Eyestalks with the cornea not dilated. 



b. Eyestalks reaching almost to the end of the antennular peduncle annulipes. 



bb. Eyestalks much shorter than the antennular pedimcle cokeri. 



Pagurus pollicaris Say. PI. xxx, fig. i. 



Pagurus pollicaris Say, 1817, p. 162: H. Milne- Edwards, 1834-1840. t. n, p. 37; De Kay, 1844, pp. 19, 21; Sumner, 191 1, p. 



666; Fowler, 1912, p. 371, pi. 11, fig. i. 

 EupoQurus pollicaris ^isapson, 1858, p. 237; Coues, 1871, p. 124; Kingsley, 1878-79, p. 327; Faulmier, 1905, p. 136. 



Anterior division of thorax subcordate, truncate behind; front with three projections, of which 

 the rostrum is slightly less advanced and more obtuse than the lateral ones. Eyestalk moderately 

 stout, one and one-half times as long as width of front, nearly straight, the cornea dilated; scale broad, 

 with blimt tips. Antennular peduncle exceeding eye by about three-foiuths the length of the distal 

 article. Antennal peduncle about as long as that of antennule; acicle slender, curved outward. Right 

 cheliped stout; its hand flattened, rather finely granulate and tuberculate, crested and dentate along 

 lower margin to tip of immovable finger; movable finger with a prominent, projecting angle on outer 

 border; carpus with numerous tubercles larger than those of the hand, subspinous and ciliated on upper 

 surface; meros with a few squamiform tubercles. Left cheliped similar but with both margins of hand 

 dentate, the movable finger not produced and the dentation of the inner margin of the hand carried 

 onto the carpus. Second and third pairs of legs strong; fourth pair reduced; fifth pair reduced and 

 carried on the back. 



Measurements of a male: Length of carapace, 14 mm.; eyestalks, 6 mm.; hand, 12.5 mm.; width of 

 front, 4 mm. 



This hermit crab has been collected in nearly all parts of the harbor but prefers the deeper channels. 



It may readily be distinguished from the other hermits of the region by its large, broad, dissimilar 

 hands. 



Pagurus longicarpus Say. PI. xxix, fig. 13. 



Pagurus longicarpus Say, 1817, p. 163; Gould, 1841, p. 330; De Kay, 1843, p. 22; Sumner. 1911, p. 667; Fowler, 1912, p. 373 . 

 Eupagurus longicarpus Stimpson, 1858, p. 237; Kingsley, 1878-79, p. 326; Paulmier, 1905 p. 136. 

 Eupagurus longipes, Coues, 1871, p. 124. 



Anterior division of thorax subcordate, truncate behind; rostrum considerably less prominent 

 and less acute than the lateral teeth of the front. Eyestalks stout, one and one-third times as long as 

 width of front, cornea dilated; scale broad with blimt tip. Antennular pedimcle exceeding eye by 

 about one-half the length of the terminal article. Antennal peduncle shorter than that of the anten- 

 nule, acicle slender, curved outward. Right cheliped much longer and larger than the left, subcylin- 

 drical; hand short, very lightly crested and minutely dentate along outer margin, upper surface minutely 

 granulate and with two incomplete rows of larger granules near proximal end; fingers short, hooked at 



