1906.] OF THE NEW ZEALAND LAKES. 695 



Ti-ans. & Proc. New Zealand Institute, vol. xi. (1878) p. 261, 

 pi. xi. fig. E, 2, a-e ; G. O. Sars, Freshwater Entomostraca of New 

 Zealand, 1894, p. 10, pi. ii. 



A few specimens found in company with the preceding species 

 in the Rotoiti gathering and in a similar netting from Waikare 

 Lake. 



Ceriodaphnta globosa, sp. n. (Plate XLYIII. figs. 1-3.) 



Female. Outline as seen laterally subquadrangular, rounded ; 

 the head separated from the rest of the body by a very deep 

 cervical depression, much flattened in front and produced ventrally 

 into a rounded lobe the extremity of which is almost filled by the 

 lai-ge eye ; hinder part of the body almost circular, with a large 

 triangular, sharply pointed projection above the middle of the 

 posterior margin (fig. 2) ; dorsal margin boldly arched, ventral 

 also arched but less so than the dorsal ; seen ventrally the outline 

 is broadly elliptical (fig. 1), greatest width in the middle and equal 

 to about two-thirds of the length, anterior extremity forming a 

 rounded protuberance which is nearly filled by the eye, posterior 

 produced into a sharp triangular spine. Shell devoid of marginal 

 hairs, and showing no surface-markings except a uniform dotting. 

 The antennte and other appendages are of the usual form. Caudal 

 lamina armed with a long, slender terminal claw (fig. 3), which is 

 quite simple and destitute of marginal setae or pectinations ; 

 posterior margin of the lamina bearing at the distal extremity a 

 series of about eight slender spines. 



Length "76 mm. 



Habitat. Roto Aira, in vertical nettings to a depth of 50 feet, 

 in Taupo Lake at 450 feet, and in a netting among reeds in 

 Waikare Lake — abixndant in all these gatherings. 



It is interesting to note that all the three lakes in which this 

 Ceriodaplmia occurs lie, as Mr. Lucas tells me, on a single river, 

 the Waikato. 



BosMiNA MERiDiONALis G. 0. Sars. (Plate XLVIIL figs. 4, 5.) 

 Bosmina meridionalis G. 0. Sars, Pacifische Plankton- Orustaceen 



(Zoolog. Jahrbiich. v. 1903) p. 631, Taf. 34. figs. 3a-c. 



Professor Sars's type specimens were taken in Wakatipu Lake, 



New Zealand, and it occui-s in greater or less abundance in most 



■of the lake gatherings, I have seen only females, nor did any 



males occur in the gatherings examined by Sars. 



OOPEPODA, 

 BOECKELLA TRIARTICULATA (G. M. ThomSOn). 



Boeckia triarticulata Thomson, Trans. & Proc. New Zealand 

 Institute, vol, xv, (1882) pi. vi. figs. 1-9. 



Boeckella triarticulata G. 0. Sars, Freshwater Entomostraca of 

 New Zealand, p. 49, pis. vii. & viii. 



