184 Transactions. — Zoology. 



In spirit the body is convex above, flat beneath, sharp- 

 pointed behind, with the peripharyngeal aperture near the 

 middle of the body, and the genital aperture about half-way 

 between it and the posterior end. 



Locality. — Jackson's, on the Teremakau River, west of 

 Otira Gorge (coll., Miss Dendy). 



Geoplana marise, n. sp. 



The single specimen when at rest was coiled more or less 

 into a knot ; the body being thick and strap-shaped, with both 

 surfaces flattened. When crawling it is long and narrow, 

 tapering very gradually in front, much broader behind, while 

 the dorsal and ventral surfaces may be both more or less con- 

 vex or both flattened. The dorsal surface may even become 

 concave by curling-up of the margins of the body. The pos- 

 terior end appears thickened dorso-ventrally. Length when 

 crawling, 97mm.; breadth, 5mm. Eyes unusually small and 

 few, but with the usual arrangement, and continued round the 

 anterior margin. 



Ground-colour of the dorsal surface very pale brownish- 

 yellow, thickly marbled with dark-brown speckles. In the mid- 

 dorsal line a rather narrow, paler band, with less of the dark- 

 brown marbling, but edged on each side by an ill-defined darker 

 band, where the brown marbling is unusually strongly de- 

 veloped. Anterior tip pink. Ventral surface very pale yellow, 

 sprinkled with brown in smaller specks than on the dorsal sur- 

 face, and with a lighter median band, where the brown specks 

 are smaller still. Margins speckled as elsewhere. 



In spirit the body is strongly convex below, much flatter 

 above, without prominent margins ; a good deal broader behind 

 than in front, and remarkably blunt at both extremities. The 

 peripharyngeal aperture is situated at about the junction of 

 the middle and posterior thirds, and the genital aperture very 

 near to the posterior end, considerably nearer than it is to the 

 peripharyngeal. 



Locality. — Jackson's, on the Teremakau River, west of Otira 

 Gorge (coll., Miss Dendy). 



Geoplana agricola, n. sp. 



Body, when crawling, long and narrow, strongly convex 

 above, fiat beneath ; about 60mm. long and 3-5mm. broad. 

 Eyes numerous, and arranged as usual. 



Ground-colour of dorsal surface pale-yellow, interrupted by 

 two broad bands of dark chocolate-brown, one on each side of 

 the middle line, and rather broader than the intervening stripe 

 of yellow ground-colour. The outer bands of yellow ground- 

 colour are of about the same width as the median one, and 

 are margined each by a very thin brown line situate at the 



