364 Tiii<: HKV. T. H. n. stkuhinq ox 



J'ONTUGEXKIA ANTxVlU'TlCUS Clievieux. • 



1906. Pontogeneia antarctica C'lievreux, Bull. Soc. Zool. France, 



vol. XX. p. 79, text-fig. 2 a-k. 



1906. ,, ,, Chevreux, Exp. Antaict. fiaiKyiise, 



Ampliip. p. 69, text-tigs. 40, 



41 A-K. 



1909. „ ,, Cliiltoii, Subantarct. Is. of N. Zea- 



hind, Art. 26, p. 624. 



1912. „ „ Chilton, Tr. R. Soc. Edinb. 



vol. xlviii. p. 796. 



1913. ,, ,, Chevreux, Deuxiome Exp. fran(;aise, 



Anipliip. p. 177, text-fig. 59 A-c. 



This species by its smooth, compressed, and not dentate body 

 is strikingly distinguished from Bovallia regis, which in many 

 other points it nearly resembles. 



The specimen which I am here assigning to Chevrenx's species 

 ngi'ees admirably in most respects with the French author's 

 figures and description, especially with the figures which he lias 

 recently given of the male gnatho})ods. Of these, the first are 

 larger than the second, the hands in both paii's oval, with the 

 palm scarcely distinguished from the hind margin except by 

 the extent of the respective fingers. The unarmed telson, with 

 short division between the rounded apical lobes, is also in pre- 

 cise agreement. The inner plate, however, of the first maxilhe 

 has only three terminal setje, instead of the four shown in 

 Chevrenx's figure and five mentioned in his text. Also the third 

 uropods have few spines instead of many, and the flagellum of 

 the first antenna? after the first two joints has the filament- 

 bearing joints separated fiom two to two, not three to three. 

 These differences may well be attributed to an earlier stage in 

 the development, but if so, the last of them Avould throw doubt 

 on the importance which has been attributed to these intervals 

 in the flagellum of vai'ious specimens. In Dana's Iphimedia 

 fiimpJex (from Hermite Island), which evidently belongs to this 

 family, the first two filament-bearing joints are the third and 

 sixth, but the following are the eleventh, sixteenth, and so on for 

 each successive fifth joint. 



Locality. (Stanley Harbour, among seaAveed at low water of 

 spring tide. 



Gen. Atyloides Stebbing. 



1888. Atyloides (p;irt) Stebbing, Rep. Yoy. 'Challenger,' vol. xxix. 



p. 913. 

 1906. „ Htebbing, Das Tierreich, vol. xxi. pp. 356, 362. 



1909. „ Chilton.' Subantarct. Is. New Zealand, p. 627. 



1912. „ Chilton, Tr. Roy. Soc. Edinb. vol. xlviii, pt. 2. 



p. 496. 



Chilton, in 1909, inclines to identifv this genus Avith J'aniiiuera 

 [24] 



