Chelipeds unequal, right much larger than left. 

 Both chelae capable of being bent down at a right 

 angle to carpus to form, either singly or together, 

 an operculum closing orifice of cavity inhabited by 

 crab. Both margins of major chela, and outer 

 margin of minor one, armed with a row of close- 

 set, conical teeth; upper surface of both covered 

 with closely crowded, rosettelike tubercles, each 

 consisting of a central larger tubercle surrounded 

 by a number of smaller ones; inner surface of 

 major hand nearly smooth between base of dactyl 

 and recess receiving carpus. Carpus of major 

 cheliped with scattered sharp spines and hairs 

 dorsally; merus with cross striae on upper sur- 

 faces and with anterior edges serrated with teeth 

 in a single row. Minor cheliped similar but hair- 

 ier and with a crest of spines on carpus. Walking 

 legs of medium length, first and second of left- 

 side, and second of right side, exceeding large 

 chela. 



Measurements. — Length of carapace: male, 9 

 mm. ; female, 10 mm. 



Habitat. — The type was taken from an un- 

 known species of the molluscan genus AntiUophos 

 (=Phvs) ; 65 to 92 fathoms. 



Type locality. — Grenada, 92 fathoms. 



Known range. — South of Cape Lookout, N.C. ; 

 off Western Dry Rocks, Key West, Fla. ; Grenada, 

 and Surinam. 



Remarks. — An ovigerous female has been taken 

 from the Surinam locality in September. 



Superfamily Hippidea 



Abdomen reduced in size, bent under thorax; 

 appendages of sixth segment not adapted for 

 swimming. First pair of legs simple or subche- 

 late, second to fourth legs with last article curved 

 and flattened. Rostrum small or wanting. Third 

 maxillipeds without epipodites. 



Family Albuneidae 



Carapace flattened and without wings covering 

 legs. First pair of legs subchelate. Third maxilli- 

 peds narrow. Telson not conspicuously length- 

 ened, almost oval. 



KEY TO GENERA IN THE CAROLINAS 



a. Eyestalks narrow, triangular Albunea (p. 136). 



aa. Eyestalks broad, oval Lepidopa (p. 138). 



Genus Albunea Fabricius, 1798 



Gordon, 1938, p. 190. 



KEY TO SPECIES IN THE CAROLINAS 



a. Dactyl of second and third legs with blunt, rectangular 

 lobe at base of anterior border gibbesii (p. 136). 



aa. Dactyl of second legs with asymmetrically niucronate 

 spur, and third legs with acute, falciform spur at base 

 of anterior border paretti (p. 137). 



Albunea gibbesii Stimpson 



Figure 112 



Albunea symnista Gibbes, 1850. p. 187. 



Albunea gibbesii Stimpson, 1859. p. 78, pi. 1, fig. 6. — Benedict, 

 1901, p. 139.— 1904, p. 625. — Hay and Shore. 1918, p. 414, pi. 30, 

 fig. 11— Sehmitt, 1935a, p. 208.— Gordon, 1938, fig. 3e, p. 192, 

 fig. 4b, p. 194. 



Recognition characters. — Carapace about as 

 broad as long, convex from side to side, nearly 

 straight from front to back; front with a minute 

 rostrum, and at either side a strong spine followed 

 by 7 to 10 slender spines ; anterolateral angle with 

 a stout conical spine below linea anomurica project- 

 ing little if any beyond anterior border; posterior 

 margin deeply and broadly notched; dorsal sur- 

 face with numerous, irregular, more or less trans- 

 verse, impressed lines, a short ciliated one near 

 front, and one crossing near middle in shape of 

 spread M being most conspicuous. 



Eyestalks narrow, triangular, cornea at tip 

 minute. Antennules about twice as long as cara- 

 pace; flagella slender and densely ciliated above 

 and below along inner surface, forming respira- 

 tory tube when approximated. Basal article of 

 antenna with an acute, small, lateral spine ; flagel- 

 lum about half as long as peduncle. First pair of 

 legs stout, hairy, all but distal articles inflated; 

 hand subchelate; inferior distal angle of propodus 

 produced into a spine; dactyls curved and rather 

 slender. Second, third, and fourth legs stout, 

 hairy, and with falcate dactyls; dactyl of third 

 leg with falciform spur at base of anterior border, 

 and second with similar broader spur. Fifth legs 

 weak, borne above others. 



Second, third, and fourth abdominal segments 

 with expanded pleura, fifth and sixth segments 

 small. Female with long uniramous pleopods on 

 second to fifth segments. Uropods consisting of a 

 rather large basal article and two small falcate 

 blades. Telson of male triangular, of female 

 rounded. 



Measurements. — Length of carapace: male, 

 16 mm. ; female, 20 mm. 



136 



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