78 THE VOYAGE OF H.M.S. CHALLENGER. 



quadrispinose, with its surface pubescent ; the flagelhim is very short (about equal in 

 length to the anterior part of the carapace) and but slightly pubescent. 



The chelipedes are of equal size and similar configuration. The merus is smooth 

 above, with a few denticles on the lower and inner margin ; the upper surface of both 

 carpus and propodus is spinulous and densely pubescent, the spinules being most 

 prominent on the inner margin, and some having corneous apices ; on the carpus the 

 pubescence is less striking and many of the hairs appear to arise from tubercles ; the 

 propodus is longer than the carpus, and its lower surface is considerably swollen, the 

 fingers are more than half the total length of the propodus, and each terminates in a 

 black horny claw, their upper surfaces are both spinulous and pubescent. The ambulatory 

 limbs are moderately pubescent, and the propodal, carpal, and the ends of the meral 

 joints are slightly spinose on the anterior border ; the dactyli are half as long again as 

 the propodi, somewhat flattened, and moderately curved, with both margins densely 

 ciliated, they terminate also in strong horny claws. The last two pairs of legs are 

 moderately pubescent. 



The penultimate abdominal segment is traversed by a cross-shaped impression, the 

 ultimate segment is trUobed, one of the lobes being greatly produced. 



The larger (female) specimen gives the follo-^sdng measurements :— Length of body 

 28 mm., of chelipede 16 mm., of third right leg 26 mm., of ocular peduncle 5'5 mm. 



The hairs on the surface of this species are regularl}^ pinnate. It is allied to 

 Paguristes pilosus, but distinguished at once by the greater prominence of the rostrum, 

 and the form of the ophthalmic scale, antennal acicle, and external prolongation of 

 the second joint of the antennal peduncle. A New Zealand species of Clibanarius, the 

 Clihanarius harbatus of Heller, apparently presents many points of resemblance, but 

 the dactyli of the ambulatory limbs are described as scarcely shorter than the corre- 

 sponding propodi. 



Habitat. — Station 167,08" New Zealand; depth, 150 fathoms; bottom, blue mud. 

 Two specimens, male and female, in shells of Ancilla pyramidalis, Reeve. 



Paguristes visor, n. sp. (PI. VIII. fig. 3). 



Characters. — The anterior portion of the carapace is somewhat rugose in front, 

 moderately convex from side to side, and the anterior border is slightly raised ; the 

 median frontal process is very prominent, with its apex subacute and slightly depressed, 

 passing a considerable distance between the ophthalmic scales, the lateral processes are 

 slightly less prominent and each is capped by one or two minute spinules ; the posterior 

 portion of the carapace is semicalcareous towards the centre. 



The ocular peduncles have a slight lateral curve and are remarkably long and slender, 

 extending to the end of the antennular peduncle and for more than one-third of their 



