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eyes, acute, slightly depressed, with lateral ridges, acuminat- 
‘Ing on all sides, with five forward directed spines above, 
entire below, with the apex a little laterally constricted. 
Laterally from the supraocular spines a ridge is continued 
on each side in a curved manner to a prominent antennai 
spine. This ridge forms the posterior margin of a lunate 
depression (half of the depression which the rostrum divides), 
and its anterior margin is excavated to receive the eye ped- 
uncle. The antero-lateral angles are rounded, and the re- 
mainder of the lateral margins of the carapace are fringed 
with short hair. 
The pleon is not carinated or geniculate, it narrows regu- 
larly in the transverse direction after the second segment. 
The pleura of the three anterior segments are moderately 
deep, those of the first overlapping the carapace, those of the 
second the first and third, though not extensively. The sixth 
segment is shorter than the two preceding ones together, and 
about as leng dorsally as the third; on its posterior margia 
it bears two triangular spines, which project each side of the 
telson, the posterior angles are acute, but do not project as 
far as the above spines, the sternal surface has an obtuse 
preanal lobe. 
The antennular peduncle reaches to about the middie of 
the antennal scale, the basal joint is much expanded and ex- 
cavate above, and reaches well beyond the eyes, the stylo- 
cerite spine, which is not deeply cut from the body of the 
joint, reaches a little beyond the end, there is a smali lobe at 
the inner proximal end, and a tuft of plumose setæ near the 
distal end above, the second and third joints are subequal in 
length, and are together shorter than the first, each three 
joints has distally and above a little transverse comb of 
short spines and below the first and second bear tufts of 
plumose sete, the upper flagellum is stout, and subequal in 
length to the peduncle, the lower is slender and about twice 
as long. The ophthalmopods are stout and shorv, ocelli join 
the pigmented portion above. 
The antenne have moderately broad scales, which only 
slightly narrow distally. The external distal spine is well 
below the apex, there is a small external spine on the outer 
side of the second joint of the peduncle, and a group of 
plumose setz on the third joint on the inner side, the fifth 
joint has distally a tuft of rather rigid plumose sete, this 
joint reaches about two-thirds the length of the scale, the 
flagellum is strong, and nearly as long as the animal's body. 
In the mandible the cutting plate is extremely rudimen- 
tary: the molar process is strong and very deflexed, there is 
a three-jointed palp, the basal joint of which is expanded 
and produced at the outer angle. 
