54 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
tipped tubercles. First abdominal segment in male, and first and second in female, with a white 
median tubercle. Chelipeds of male stout, propodi much dilated, fingers widely gaping. Ambulatory 
legs of first pair about 2.5 times, of second pair about 1.66 times, of fourth pair about 1.33 times the 
length of carapace. Propodus of last three pairs scythe-shaped; that is, the distal portion, or that 
against which the daetylus folds, is curved. 
Dimensions of male: Length, 15.2 mm.; width, 11 mm. 
Bahamas; Florida Keys; West Indies. Depth, 2 to 14J fathoms. Porto Rico: Off Vieques, 14 
fathoms, station 6085; off Culebra, 14| fathoms, station 6086. 
Podochela riisei Stimpson. 
Podncheln riisei- Stimpson, Ann. Lye. Nat. Hist. N. Y., vn, 1%, pi. ii, f. 6, 18G0. 
Carapace with a cardiac and a gastric spine; a gastric, tubercle in front of spine; also a flattened 
spine on the hepatic region pointing downward. Rostrum hood-shaped, with a median carina. Supra- 
orbital margin thickened. Postorbital tooth small, tuberculate; behind and below it a small tubercle. 
Basal antennal joint deeply concave, with thin laminate margins, forming a subacute angle anteriorly; 
broader posteriorly, postero-lateral angle dilated. Pterygostomian ridge laminate. Sternum of male 
with segments flattened, separated by deep grooves; area in front of abdomen protuberant, bitubercu- 
late. Chelipeds in both sexes slender, man us not dilated, fingers in contact. First pair of ambulatory 
legs much stouter than the others, about 3 times the length of carapace; second, third, and fourth 
pairs decreasing regularly in length, the second pair a little more than twice, the fourth pair nearly 1.6 
times the length of carapace; propodi thickened distally, dactyli slightly curved. Carapace and legs 
ornamented with tufts of curled hair. 
Dimensions of male: Length, 14.6 mm.; width, 11.2 mm. 
From Cape Hatteras to Florida Keys; Gulf of Mexico; Bahamas; West Indies; Bermudas. Depth, 
3 to 49 fathoms. South of Pernambuco, 30 to 350 fathoms (Miers). Off St. Thomas, 20 to 23 fathoms, 
station 6079; off Vieques, 6 to 15 fathoms, stations 6091 and 6096 (Fifth Hawk). 
Genus .7EPINUS Rathbun. 
Apocremnus A. Milne Edwards, Crust. Reg. Hex., 184, 1878. (Name preoccupied.) 
JEpirnts Rathbun, Proc. Biol. Soc. Wash., xi, 163, 1897. 
Carapace short, wide behind, very narrow in interorbital region. Rostrum short, subtruncate, 
with a median emargination. Upper orbital border very high; no postorbital angle. Eye peduncles 
short, with a flat upper surface, a tubercle on anterior margin and another at emargination of cornea. 
Extremity of basal article of antenna visible at sides of front; its outer distal angle sharp. Merus of 
maxillipeds somewhat L -shaped, produced at anterior outer angle and posterior inner angle. The 
last two abdominal segments in male and the last three in female are coalesced. Chelipeds short 
and feeble. Ambulatory legs short; meral, carpal, and propodal joints thickened in middle; dactyli 
slender, folding against propodi. 
TEpinus septemspinosus (A. Milne Edwards). 
Apocremnus septemspinosus A. Milne Edwards, Crust. Reg. Mex., 185, pi. xxxv. f. 5, 1879. 
AEpinus septemspinosus Rathbun, Bull. Lab. Nat. Hist. State Univ. Iowa, iv, 254, 1898. 
The carapace and feet bear a few hooked hairs. Gastric region very narrow and high; it, as 
also the cardiac region, is surmounted by a very stout erect spine; a third median spine, shorter and 
directed backward, is situated on first article of abdomen. Each branchial region carries an erect spine. 
Two shorter spines directed forward surmount orbital border. The gastric region bears, in front of 
median spine, three or four small tubercles, one or two median, and one lateral; outside these there 
is a triangular laminate tooth or spine. Otherwise the surface is smooth. The hepatic region termi- 
nates below in a laminate tooth; subbranchial margin dentate. Front very short and formed of two 
rounded lobes separated by a narrow cut. Antennulary fossettes extend nearly to extremity of front, 
separated by a partition developed interiorly in a triangular tooth. Basal article of antenna very 
deep, with a prominent crest below, which near the anterior end bifurcates, the longer, outer branch 
continuing to epistome where it terminates in a lobe. Exognath of outer maxillipeds toothed on 
outer margin. Sternum of male with prominent transverse crests. Abdomen of female ] tied, and 
with a smooth median carina; terminal portion tuberculate. Chelipeds granulate; margins of merus 
