130 Transactions. 



and its inner margin cannot be clearly seen, but it appears smooth there 

 also. In his original description Stebbing describes the telson as having 

 " the minute apex microscopically tridentate," and figures it as distinctly 

 tridentate ; in the " Das Tierreich " description he simply says, " apex 

 a little obtuse," which perhaps more accurately describes the appearance 

 of the telson in those specimens that I have examined. 



Hab. — Hauraki Gulf (25 fathoms), Paterson Inlet (10 fathoms). Taken 

 also in New Zealand seas by the " Challenger " (2,000 fathoms). 



Pontogeneia danai (G. M. Thomson). 



Atylus dania, A. danai G. M. Thomson, Trans. N.Z. Inst., vol. 11, 

 pp. 238. 248, pi. 10f, fig. 1, 1879. Pontogeneia danai Stebbing, 

 Das Tierreich Amphip., p. 360, 1906. Atylus lippus Haswell, 

 Proc. Linn. Soc. N.S.W., vol. 4, p. 328, pi. 20, fig. 1, 1880, and 

 Cat. Aust. Crust,, p. 243, 1882 ; Chilton, Proc. Linn. Soc. N.S.W.. 

 vol. 9, p. 1037, 1885. Eusiroides lippus Stebbing, Das Tier- 

 reich Amphip., p. 316, 1906 ; Stebbing, Results " Thetis " Exped., 

 Memoir Aust, Mus., vol. 4, p. 639, 1910. 



Lyttelton, Akaroa, Dunedin (G. M. Thomson), Bluff (L. Cockayne), 

 Stewart Island (H. B. Kirk). Also Port Jackson, New South AVales, and 

 Portland, Victoria. 



Very common in rock-pools ; colour very variable. 



Closely allied to P. antarctica Chevreux, from which it differs in having 

 every 4th (or 5th) segment of flagellum of antennules dilated and the 

 dilatation more prominent. 



Atylus lippus Haswell is put down by Stebbing as an obscure species 

 of Eusiroides. I have, however, several specimens from Sydney Harbour 

 and other places in Australia which seem undoubtedly to belong to Has- 

 well's species, and they certainly should be placed under Pontogeneia, and 

 a comparison of them with New Zealand specimens shows that they are 

 the same as P. danai G. M. Thomson, a species described a year earlier. 



Paraleptamphopus subterraneus (Chilton). 



Paraleptamphopus subterraneus (Chilton), Trans. N.Z. Inst,, vol. 41, 

 p. 54 (with synonomy). 



In the paper quoted above I gave the localities from which the species 

 had been found up to that time. Shortly afterwards, on the 24th De- 

 cember, 1908, I took it among moss, &c, in a small mountain-stream at 

 Duck Cove, Dusky Sound. The specimens were perhaps slightly yellower 

 than those found underground, but showed no sign of eyes, and in all 

 other respects seem quite the same as those first found in the underground 

 waters of the Canterbury Plains. 



In January, 1911, Mr. W. F. Howlett sent me specimens from Eke- 

 tahuna, which had been obtained from a well in the same way as those 

 originally got from the Canterbury Plains. The only previous record from 

 the North Island had been one specimen obtained in Lake Taupo, at a 

 depth of 700 ft., by Messrs. Hodgkin and Lucas. 



It is evident that this species is even now widely distributed through- 

 out New Zealand, usually inhabiting underground waters, but occasion- 

 ally found also in surface streams. 



