168 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
palp of the maxillipeds and the pleopodal character of the uropods. It differs from the latter in 
the possession of eyes, the more normal character of the first antennre, in the character of the 
thoracic limbs, and the general habit of the body. It seems to connect Anuropus with the more 
normal members of the Cirolnnkhr , and makes it more difficult to remove the former to a new family, 
Anuropkla.', as has been proposed. Anuropus hranchiotm Beddard is a deep-sea form, obtained by the 
Challenger in 1,070 fathoms between New Guinea and the Admiralty Islands. It is interesting to find 
in the West Indies a shoal-water species agreeing with it in such remarkable particulars as have been 
set forth. 
Branchu ropus littoralis, new species. 
Body moderately convex, about 2.75 times as long as broad; abdomen notabruptly narrower than 
the thorax. Head rounded in front, about half as wide as greatest width of body, about two-thirds as 
long as wide. 
Thorax broadest at fifth joint, fifth and sixth joints longest; the rest shorter and subequal. 
Epimera of all but first joint distinct; sides of first segment emarginate, the anterior portion being 
produced somewhat to embrace the eye; epimera of second and third joints not produced posteriorly, 
of fourth, fifth, sixth, and seventh produced in a sharp process terminated by a spine, that of the 
last extending beyond the first abdominal segment. 
Abdominal segments all distinct, gradually increasing in length from first to fifth; first joint some- 
what narrower, not produced posteriorly at sides, exposed throughout its breadth; the other free 
segments subequal in breadth, strongly produced posteriorly at sides, the last two armed at each angle 
with a stout spine. 
Telson rounded, about live-sixths as long as broad, margin not armed, abruptly higher in median 
two-thirds at base, with an ill-defined, low protuberance or process on each side of middle line. 
Eyes large, black, space between about as great as diameter of eye. Base of first antennae pro- 
jecting from beneath overhanging front; peduncle of three joints, (lie first and second forming a right 
angle, the second and third joints subequal; flagellum 4-jointed, first joint long and tapering, 1.5 times 
as long as the other three, second and third joints subequal, last joint short and reaching to beyond 
posterior margin of head. 
Second antennae long and slender, when placed close to sides of body reaching to about anterior 
margin of telson; peduncle 4-jointed, joints increasing gradually in length and slenderness, second 
joint furnished on distal external angle with 4 or 5 setae; flagellum with about 18 joints which are 
longest in its middle. 
Epistome slender, expanded in front and emarginate, reaching to about the level of frontal 
margin of head 1 >ut not connected with it. 
Mandible with tridentate cutting edge, movable pectinate appendage and 3-jointed palp, in 
general resembling tins organ in Eurydice. 
Maxillipeds 2-jointed, the basal joint long, somewhat transversely of the head; the second joint 
short and armed with a few hairs distally. 
Thoracic limbs gradually increasing in length posteriorly. First limb with second joint longest, 
the third, fourth, and fifth successively shorter, the sixth joint as long as third, and pectinate by a 
series of spines, the last one stoutest, and the seventh not forming with the sixth a subchelate hand, as 
in Anuropus. The posterior border of the limb is furnished with spines and seta?. Second and third 
pairs subsimilar with the fifth joint larger. Fourth to seventh pairs backwardly directed, and becoming 
successively broader and flatter, resembling the posterior limbs of Eurydice, the fourth pair with 
numerous stout spines along its internal edge, these becoming fewer and weaker on posterior pairs, 
which are more abundantly furnished with long slender seta?, fifth joint of last pair of legs broad and 
almost rectangular. 
Abdominal appendages subsimilar, the uropods not projecting beyond the margin of telson, 
attached to under side, in structure similar to the pleopods and probably branchial in function. 
Color gray, with arborescent brown pigmentation becoming more dense posteriorly, on abdomen 
collected principally in a median wedge-shaped mass with the apex on base of telson, each segment of 
pleon with two subelliptical paler lateral areas, with about 25 to 30 longitudinal lines of pigmentation, 
the areas between which are reticulated with brown. Mandibles, legs, and under side of body more 
or less pigmented. 
One specimen, from station 6079, 20 fathoms, 6 by 2.2 mm. 
