440 Mr. T. W. Kirk on new Infusoria from New Zealand. 



or but slightly, thickened. Ciliary disk moderately elevated, 

 cilia in a single row. Endoplast curved, band-like, nearly 

 transverse. Cuticular surface granular. Contractile vesicle 

 single, near anterior margin. Pedicle annulated, branched. 

 Length of body -v-^u inch. 



Hah. Pond in Botanic Garden, Wellington. 



Similar to 0. cylindrica, but more cylindrical, and rough 

 without stria3. 



Acineta simplex. 



Lorica wine-glass-shaped, anterior edge not narrowed, lip 

 not reversed, posterior extremity rounded, sides nearly parallel ; 

 pedicle moderately stout, about twice as long as the lorica. 

 Animalcule occupying the anterior half of the lorica, sub- 

 spherical. Tentacles capitate, arranged in two groups of 

 about ten in each. Contractile vesicle situated on one side, 

 near the anterior margin. Length of lorica 3^0, width e^o- 

 inch. 



Uab. Botanic Garden and Karori Keservoir, Wellington. 



New-Zealand Vorticellae. 



In vol. xviii. of the ' Transactions of the New-Zealand 

 Institute ' is a pa])er on this subject by myself. The following 

 species are identified. Although the antipodean specimens 

 differ slightly from the figures and descriptions given in 

 Saville Kent's manual, I have no doubt they belong to the 

 species named. 



Vorticella annularis, Midler. Vorticella elongata, De Fromentel. 



marina, Grecff. patellina, MiiUer. 



longifiliim, Saville Kent. — — uebiilifera, Ehrenberg. 



campanula, Ehrenherg. striata, Dujardin. 



cratera, Saville Kent. aperta, De Fromentel. 



citrina, Ehrenherg. 



The following are described as new : — 



Vorticella ohlonga. 



Body oblong, nearly twice as long as broad, rounded nearly 

 equally at both ends, encircled by a number of interrupted 

 lines looking like puckers. Pedicle stout, four times as long 

 as the body, contracting by loops^ and apparently too weak to 

 support the body for long in an erect position, as it gradually 

 leans either to one side or the other till it meets with some 



