212 Transactions. — Zoology. 



its length which I have seen, the length in spirit being scarcely 

 more than twice the breadth. 



Geoplana alfordensis, n. sp. 



When crawling, long and narrow, convex above and flat- 

 tened below. One specimen measured, when crawling, about 

 33mm. in length by 2mm. in breadth. The ground-colour of 

 the dorsal surface is very pale yellow, with a pair of rather 

 broad dark-reddish or chestnut-brown stripes. The width of 

 the median band of ground-colour varies a good deal in the 

 three specimens. Anterior tip pink. Ventral surface very 

 pale yellow, without markings. Eyes as usual, but compara- 

 tively few and inconspicuous. 



In spirit the body is of approximately uniforni width, 

 except where it tapers just at the anterior and posterior extre- 

 mities. It is oval in transverse section, convex dorsally and 

 ventrally, and with rather prominent lateral margins. The 

 peripharyngeal aperture is well behind the middle of the 

 body. The position of the genital was not very satisfactorily 

 determined. 



Geoplana purpurea, Dendy. 



I identify four specimens as a slight colour variety of this 

 species. The colour in life was very dark brown, nearly black, 

 on the dorsal surface, with narrow dirty-white median stripe. 

 The ventral surface was lighter brown, and the anterior tip 

 pale-brownish. 



Geoplana quinquelineata, Fletcher and Hamilton. 



I identify with this common Australian species two small 

 specimens. The largest was only about 30mm. long when 

 crawling. At rest, flattened on both surfaces, but not 

 markedly quadrangular. Ground-colour very pale yellow all 

 over, with five dark-grey stripes on the dorsal surface, the 

 median one narrowest. Anterior tip pink. 



Geoplana graffii, Dendy. 



Three fairly typical, although rather small, examples of 

 this species were met with. 



Geoplana graffii, var. somersii, nov. 



This variety, represented by three specimens, differs from 

 the typical form in the suppression of the pale longitudinal 

 bands on both surfaces. The body in spirit also appears to 

 be narrower in proportion to its length, and hence less leaf- 

 like. The colour is greyish-brown all over, with minute white 

 specks ; paler on the ventral surface, but also speckled. The 

 white specks or dashes are more strongly developed in the 

 mid-dorsal line than elsewhere, perhaps indicating the lost 



