18 Transactions. — Zoology. 



Length of lorica, exclusive of pedicle arid points, somewhat 



variable, from ^h mcn = 71 /*» to ah) incl1 = 83 f 4 ! wicltn at tlie 

 lower angles ^Lj inch = 58 it. 



Wellington', W. M. Maskell. 



Allied to A. mystacina, Ehrenb., but the straight sides and 

 sharp angles are constant and distinctive. 



Acineta speciosa. 



(A. elegans, nobis. " Trans. N.Z. Inst.," vol. xix., p. 60.) 



A change in the name of this species is necessary, as our 

 former one had been already appropriated by Imhoff (" Zool. 

 Anzeig.," 1883) to an animalcule found in some of the Swiss 

 lakes. 



Acineta tulipa, sp. nov. Plate IV., fig. 30. 



Lorica deep and narrow, uot unlike a tulip-flower, the 

 margin five-lobed, distinctly thickened but not recurved ; 

 breadth at the top nearly three-fourths the length ; sides 

 tapering rapidly and nearly straight to the posterior end, which 

 is rounded. Pedicle very thick, rather short, nearly half the 

 length of the lorica. Animalcule almost filling the lorica ; 

 anterior margin very convex. Tentacles arranged in two 

 antero-lateral bundles, each containing nine. Parenchyma 

 irregularly granular. Contractile vesicle spherical, situated 

 near the anterior margin of the lorica, under one of its clefts. 



Length of lorica, ¥ ±_ inch == 71 /u ; length of pedicle, ^ 

 inch — 35 11. 



Wanganui, T. W. Kirk. 



A distinct and rather elegant species. 



Acineta lasanicola, sp. nov. Plate IV., fig. 31. 



Lorica shallow, broad, sub-rectangular, having very much 

 the shape of a stewpan ; breadth nearly twice the depth ; margin 

 neither thickened nor recurved; sides almost parallel, lower 

 angles very obtusely rounded ; base slightly concave. Pedicle 

 rather thick, more than twice as long as the depth of the lorica. 

 Animalcule filling the margin of the lorica, but somewhat con- 

 tracted below, so that it occupies only about three-fourths of 

 the interior space ; upper margin convex. Tentacles con- 

 spicuously capitate, ai'ranged in two antero-lateral bundles, each 

 containing eleven. Contractile vesicle spherical, sub-central. 

 Endoplast band-like, posterior. Parenchyma granular. 



Depth of lorica, T £ ? inch == 54 li ; breadth, 9 fo iucu = 89 P > 

 length of pedicle, ^j inch = 113 /.t. 



Wellington, T.W. Kirk. 



A peculiar species, easily distinguished by the saucepan 

 form of the lorica. 



