210 CANON A. M. NORMAN ON THE PODOSOMATA 



penultimate, and is stout^ obtusely rounded at the extremity, and covered 

 with short setse *. 



The false feet have the fourth joint somewhat longer than the fifth, which 

 equals in length the first three joints of the terminal portion ; each of the 

 five joints of the terminal portion is shorter than the preceding ; the last four 

 of these are furnished with flattened knife-shaped spines with serrated 

 margins, consisting of a pair of larger serrse at the base, followed by six or 

 seven pairs of smaller but distinct serrse ; the number of these serrated spines 

 ranges from about ten on the fifth joint to seven on the last joint ; the nail 

 is rather more than half the length of the last joint and is beset on the 

 margin with nodular teeth. 



The ambulatory legs (fig. 11) have the second coxal joint contracted at the 

 base and widened distally, and it is one and a third times as long as its greatest 

 breadth ; the femoral joint (in ? greatly swollen) is slightly longer than the 

 preceding portion of the limb ; first tibial equal to the femoral ; second tibial 

 only slightly longer ; tarsus very short, length and breadth usually subequal, 

 bearing a distal strong spine ; propodos (fig. 12) three to four times as long- 

 as tarsus, very broad and strongly built, arcuate, armed with three to five 

 strong spines of considerable size on the first two-thirds of its length, and 

 spinules on the more distal portion ; dactylus strong, scarcely more than 

 one-third the length of the propodos ; supplementary claws hardly half its 

 length ; the legs bear a few scattered spine-like setse. 



There can, I think, be scarcely a doubt that Sars's JV. gracile is this species. 

 It is like it in almost every particular ; the only points in which there is not 

 absolute agreement with my specimens are that the neck looks rather longer 

 in fig. 1 (but not so in fig. 1 h), and that the propodos is shorter in 

 proportion to the length of the tarsus on the one hand and of the claw on 

 the other. 



Starcross and Plymouth, Devon ; Oban; St. Andrews [A. M. N.) ; Shetland 

 {Pearcey). Mus. Nor. 



Hodge's type-specimen was taken near the Dogger Bank in 25-30 fathoms. 

 Firth of Clyde {D. Robertson). A few specimens have been taken in 

 Norway {Sars). 



3. Nymphon mixtum, Krdyer. 



Nymphon mixtum, Kroyer, (32) p. 110, and (33) pi. xxxv. figs. 2 a-f. 

 „ „ Hansen, (17) p. 128, pi. vii. fig. 19. 



„ grossipes {armatum on plate), Hoek, (26) p. 44, pi. iii. figs. 9-12, and pi. iv. 



fig. 1. 

 „ mixtumj G. 0. Sars, (51) p. 68, pi. vi. figs. 3 a-i. 



* It is obvious that Hodge's description and figure of the palpi are erroneous, they do 

 not agree with each other and are both -nTon?. 



