622 ON CBUSTACEA BROUGHT BY DR WILLEY FROM THE SOUTH SEAS. 



Maxillipeds with the first joint carrying small oval epipo(Js, but not otherwise dis- 

 tinguishable from the wall of the head, which, as usuallj' in the family, is ventrally 

 more or less carinate ; second joint not twice as long as broad, seemingly with a 

 small oval plate near inner angle of apex, which is not produced ; the three-jointed 

 palp much longer than the basal joint, which is not longer than the second of the 

 palp; third joint of the palp small, broader than long, attached to the outer part of 

 the truncate apex of the preceding joint. 



First gnathopods. Second and third joints large, broad, third deeply channelled, 

 fourth joint short, fifth with its triangularly produced point meeting tip of finger, sixth 

 thick, broad at base, suboval or pyriform, but with setose palm margin almost straight ; 

 the apex, as in all the limbs, forms a little subcircular expansion beside base of finger; 

 the finger much curved, narrowing and armed with a seta at about the middle of 

 the inner margin. 



The second gnathopods and first peraeopods are much more slender, the third joint 

 rather shorter than the second, the fourth short, distally as broad as the length, the 

 fifth small, triangular, apically almost acute, the sixth narrowing distally, its palmar 

 margin having a row of setae and an apical spine, with a second row of setae on 

 the adjacent .surface, the finger about two-thirds as long as the preceding joint, curved, 

 constricted, with a seta at the constriction. 



Second to the fifth peraeopods. These differ little from the two preceding pairs of 

 limbs, but the fourth joint is rather pyriform than triangular, decidedly longer than 

 broad, the fifth joint is less narrowly triangular, and the sixth of almost uniform width. 

 In these limbs the sixth joint and finger show a fine serration of the margins when seen 

 at a suitable angle. 



Uropods. The upper branch is strongly emarginate at the apex, of which the outer 

 lobe is the naiTOwer; except for two-thirds of the outer margin, this branch is fringed 

 with setae, some of them very long; it reaches a little beyond the base of the terminal 

 joint of the lower branch, which is strongly fringed, oval, e.xcept at junction with its 

 base, which is equal to it in length and breadth and obliquely grooved on the surface. 



The telson is oval, about twice as long as broad, slightly carinate longitudinally, with 

 a few setae on the surface, and several long ones round the apex, which does not reach 

 the level of the apices of the uropods. 



Colour (in spirit) wanting, except for a light brown marbling on the back of head 

 and each peraeon segment. 



Length, 7 mm. Judging from the antennae, the two specimens ai-e probably females. 

 The one figured has the segments of the peraeon from the third to the seventh 

 thickened. 



Habitat. Sandal Bay, Lifu, Loyalty Islands. Specific name referring to place of 



capture. 



Gex. Paranthura. 



1866. Paranthura, Bate and Westwood, Brit. Sess. Crust., vol. 2, p. 16-3. 

 1870. Paranthura, Dohrn, Unters. liber Bau und Entwickelung der Arthropoden, 

 p. 91. 



