622 SUBANTARCTIC ISLANDS OF NEW ZEALAND. [Crustacea. 



pointed out that in the New Zealand species as originally described the two 

 posterior segments of the peraeon and the two anterior of the pleon are produced 

 into two teeth, while in Oradarea longimana only the first two pleon segments are 

 produced, each into one tooth. Mr. Walker had, however, himself pointed out in 

 his original description that some of his specimens had the first two segments of 

 the pleon simple, and that these characters cannot be relied upon for specific dis- 

 tinctions ; the later description by Stebbing speaks of only one tooth on the last 

 segment of peraeon and on each of the first two segments of the pleon, and only one 

 tooth is present in my specimens. It is true that in the New Zealand specimen I 

 cannot find an appendage to the first antenna, while this is present in Mr. Walker's 

 specimens ; but, as I have pointed out elsewhere in this paper, the presence or 

 absence of a vestigial accessory appendage on the antenna is subject to considerable 

 variation, and Mr. Walker has himself drawn attention to the same fact.* In the 

 uropoda and in all other characters the resemblance is so close that I feel bound to 

 combine the two species. 



Leptampho'pus novae-zealandiae evidently has a very wide range, being found 

 in New Zealand, and at Auckland Islands, Cape Adare, McMurdo Strait, and other 

 places visited by the " Discovery " ; while M. Chevreux has recorded it also from 

 Flanders Bay, Port Charcot, and Wincke Island. 



Djerhoa furci'pes, Chevreux, from Booth Wandel Island,! shows a striking 

 resemblance to this species in the gnathopoda and in several other respects, but 

 differs in the details of the segments produced into dorsal spines and in having the 

 telson deeply cleft. 



Fam. PONTOGENEIIDAE. 



Genus Bovallia, PfefEer, 1888. 



Bovallia, Pfefier, Jahrb. der Wissensch. Anstalten zu Hamburg, 1888, 

 p. 96. Eusiroides, Stebbing, Eep. " Challenger," xxix, p. 969, 1888. 



Distribution. — South Pacific, Indian, and South Atlantic Oceans. 



Bovallia monoculoides (Has well). 



Atylus monoculoides, Haswell, Proc. Linn. Soc. N.S.W., iv, p. 327, pi. xviii, 

 fig. 4, 1880. Eusiroides caesaris, E. 'pomyeii, and E. crassi, Stebbing, 

 Rep. " Challenger," xxix, pp. 970, 974, 977, pi. Ixxxviii-xc, 1888. E. 

 monoculoides and E. crassi, Stebbing, " Das Tierreich Amphipoda," 

 pp. 345, 346, 1906. E. caesaris, Steb., var. Walker, Rep. Ceylon Pearl 

 Fish., ii, p. 264, pi. iv, fig. 22, 1904. Bovallia gigantea, Pfefier, Jahrb. 

 der Wissensch. Anstalten zu Hamburg, 1888, p. 96, pi. i, fig. 5, 

 1888 ; Chevreux, Exped. antarct. franyaise, Amphipoda, p. 54, 

 figs, xxxi-xxxiii, 1906 ; Stebbing, " Das Tierreich Amphipoda," 

 p. 357, 1906. 

 Three specimens from Carnley Harbour, Auckland Island — two of large 



size (26 mm. in length), the third smaller (Professor W. B. Benham and Mr. 



E. R. Waite). 



* Ann. and Mag. Nat. Hist., ser. 7, vol. xvi, October, 1905, p. 464. 

 t Exped. antarct. franQaise, Amptipoda, p. 74, figs. 42-44. 



