414 BULLETIN OF THE BUREAU OF FISHERIES. 



Genus CATAPAGURUS A. Milne-Edwards. 



Catatagurus A. MUne-Edwards. iSSo. p. 46. 



Catapagurus sharreri A. Milne-Edwards. PI. xxix, fig. 11. 



Catapagurus sharreri A. Milne-Edwards, 1880, p. 46; Smith. 1883, p. 31, pi. 4, fij. s; ibid. 1884. p. 353. pi. IV, fig. 1-3; 

 ibid, 1886, p. 64]. 



Hemipaffurus socialis. Smith, 18S1, p. 423. 



Carapace convex, rugose on the gastric region. Ocular peduncles rather short and thick; ophthalmic 

 scales less than half as long as the peduncles, narrow and acute. Oielipeds slender, the right a little 

 longer and considerably stouter than the left; h.ind with the internal surface covered with long hairs; 

 movable finger with a large tooth near the middle. Second and third pairs of legs nearly equal in 

 length and slightly exceeding the chelipeds, their meral articles spinulose on the margins, their 

 dactyli compressed and ciliated. 



Measurements of a male (tj^pe): Length, 13 mm.; eyestalks, 2 mm.; right chela, 8 mm.; left chela, 

 7.5 mm. (Smitli). 



This species has been collected at variotis points along the Atlantic coast from Massachusetts to the 

 mouth of the Chesapeake. The type specimens came from the Barbados. It is usually foimd at 

 greater depths than 100 fathoms, but has been taken in less than 60 fathoms. It was dredged by the 

 Fish Hawk in 1902, in 151 fathoms, off Cape Lookout. 



This hermit crab is sometimes found in a naked shell of some gastropod, but usually the shell is 

 completely overgrown and finally removed by a colony of Epizoanthus americanus. 



Tribe HIPPIDEA. 



Anomura having the abdomen reduced in size and bent under the thorax, the 

 appendages of the sixth segment not adapted for swimming, the first pair of legs simple 

 or subchelate, the second to fourth pairs of legs \vith the last article curved and flat- 

 tened, the rostrum small or wanting and the third maxillipeds without mastigobranchs. 



Both of the families recognized in this tribe are represented in the Beaufort fauna. 



Family ALBUNEIDAE. 



Hippidea ha\'ing the first pair of legs subchelate, the third maxillipeds narrow, 

 and the carapace flattened and without wngs which cover the legs. 



Of the 4 genera assigned to this family, 2 occur in the Beaufort fauna. 



KEY TO THE GENERA OF THE BEAUFORT REGION. 



a. Eyestalks narrow, triangular A Ibunea. 



aa. Eyestalks broad, oval Lepidopa. 



Genus ALBUNEA Weber. 



AlbuneaVfeba, 1795, p. 94; Fabricius, 1798, p. 372. 

 Albunea gibbesii Stimpson. PI. xxx, fig. 11. 



Alhumcs symnisla Gibbes, 1850, p. 1S7 (not A. symnista Fabricius.). 

 Albunea ailhfsii Stimpson, 1859. p. 78; Benedict, 1901, p. 139. 



Carapace lyrate, convex from side to side, almost straight along median line; front with a minute 

 rostrum with a strong spine on either side followed by about nine slender spines; anterolateral angle 

 with a stout conical spine which projects little if any beyond the anterior border; posterior margin 

 deeply and broadly notched; dorsal stirface with numerous, irregular, impressed lines which take a 

 more or less transverse course, a short one near the front and one crossing near the middle like an 

 inverted W being tlie most conspicuous. Eyes minute, at the tip of the narrow, triangular eyestalks. 

 Anteimules about twice as long as carapace, slender and densely ciliated above and below along inner 

 surface. Basal segment of antenna with an acute small spine, flagellum about half as long as pedimcle. 

 First pair of legs stout, hairy, all but the distal segments inflated; hand subchelate, the inferior distal 



