NYMPHONIDAE 



Third leg relatively short and setose ; the length of the setae on each tibia and at the 

 distal end of femur is equal to the diameter of the segment. Second coxa as long as the 

 sum of the first and third (dorsal measurements). Three or four high wide gland 

 tubercles on mid-ventral surface of femur, which is equal to second tibia ; first tibia the 

 longest segment (see Table III). Tarsus shorter than propodus; claw less than half as 

 long as the latter; auxiliaries well developed, one-third of main claw. 



\N.xL:^^..^^XAA 



7-7-7-7 



/ / ' ' ^ 



Fig. 31. Terminal segments of third leg of: 



Nymphon biarticulatum , Hodgson: a, adult; c, young from St. 181 (length = 4 mm.). 

 A', brevicaiidatiim, Miers: b, adult co-type; d, young from St. 42 (length = 4 mm.). 



Remarks. The majority of the specimens in the Discovery collection come from the 

 neighbourhood of South Georgia. A few specimens were collected off Clarence Island 

 and the South Shetlands, but none from Palmer Archipelago, where the bulk of the 

 specimens referred to N. biartictilatiim, Hodgson, occurred. A'^. brevicaudatiim and 

 N. biartindatiim are very closely allied and the latter may prove to be a more southern 

 variety of the former (see p. 72). 



Distribution. Kerguelen, South Georgia and South Shetlands. 



Nymphon biarticulatum, Hodgson (Figs. 27^, 310, c and 32^). 



ChaetonytnpJwn biarticulatum, Hodgson, 1907, p. 28, pi. iv, fig. 2; pi. x, fig. 12. 



St. 167. 20. ii. 27. Off Signy Island, South Orkneys, 244-344 m.; gi^- ^- Large otter trawl: 

 6 specimens. 



St. 180. II. iii. 27. 17 miles W of N point of Gand Island, Schollaert Chaimel, Palmer Archi- 

 pelago, 160 m.; M. St. Large dredge: 3 S specimens. 



