88 PERCY SLADEN TRUST EXPEDITION 



less than half as long as the sixth joint, tipped with a spine and setae ; the sixth joint 

 as long as the fifth, carrying various spines chiefly on the distal half, and having on the 

 outer margin near the base the plumose cilium spoken of by Professor Sars as an auditory 

 appendage characteristic of these limbs ; high up on the outer margin of the second joint 

 there are two similar but much smaller cilia. 



Fifth peraeopods. These have the finger shaped as in the first and second pairs, but 

 very much shorter, with a little distinct nail preceded by a setule ; the sixth joint, scarcely 

 so long as the finger and shorter than the preceding joint, has four conspicuous curved 

 spines on the inner margin, which is fringed with a row of spinules. 



The five pairs of pleopods are uniform in character, the second joint of the peduncle 

 having its inner margin and the branches of their free margins, except the broad base of the 

 inner one, fringed with plumose setae ; the outer branch not longer than the peduncle, 

 but the inner much longer and broader than either, with a long plumose spine, bent at 

 the base and tipped with two setules, issuing from the top of the inner margin. 



The uropods have a peduncle reaching the end of the telsonic segment, supporting 

 a short slender three-jointed ramus, of which the first two joints are very small, and 

 a long inner ramus of twenty-two joints varying in length and all together about equal 

 to the length of the pleon. 



The specimen, not including antennae or uropods, measured 5 "25 mm. in length. 



Locality. Wasin, E. Africa, 10 fathoms, mud. 



The specific name, from the Greek pax pod pug, long-haired, alludes to the luxuriant 

 development of setae on several of the appendages. 



Along with this specimen there was an Apseudes, 2 mm. long, and a Cyathura, 

 3 mm. long, both probably not adult. 



Gen. PARAPSEUDES, Sars. 



1880. Par apseudes, Sars, Arch. Naturv. Christiania, vol. vii., p. 16. 

 1886. Parapseudes, Sars, Arch. Naturv. Christiania, vol. xi., p. 303. 

 1905. Parapseudes, H. Richardson, Bull. U.S. Nat. Mus., No. 54, p. 47. 



The earlier forms assigned to this genus are the little P. latifrons (Grube), scarcely 

 more than 3 mm. long, from the Mediterranean, and P. goodei, Richardson, of which the 

 length is not mentioned, from Bermudas. It is said to have a close resemblance to 

 Grube's species. 



In the amended definition of 1886 Sars gives the following characters: — Body short, 

 depressed, broadest anteriorly. Carapace without definite sculpture ; rostral lamina not 

 delimited at the base. Eye-lobes definitely separated, with well developed visual elements. 

 First antennae with the two flagella subequal in length ; the second with the lamellar 

 appendage very small. Mandibular palp very small and sparingly furnished with setae. 

 Chelipeds about as in Apseudes, but scarcely differing in the two sexes. Fossorial feet 

 [second gnathopods] with coxal joint simple, lamellar, without process. Peraeopods 

 comparatively very strongly developed, not very different from the fossorial feet, and, like 

 these, armed with numerous strong spines on the inner margin. Pleon with only four 



