232 Transactions. — Zoology 



Geoplana latero-punctata, n. sp. 



Dorsal surface in life strongly convex, ventral flattened as 

 usual. In spirit the body is short and thick, strongly convex 

 dorsally, flattened ventrally, with broadly rounded not pro- 

 minent margins. The anterior extremity, with its prominent 

 horse-shoe-shaped sensory ridge, is rather sharply marked off 

 by sudden narrowing from the rest of the body, while the 

 posterior extremity tapers more evenly but rather rapidly to a 

 blunt point (in spirit). 



A spirit specimen measures about 115 mm. by 2*5 mm., 

 with the genital aperture 3 - 75 mm. and the peripharyngeal 

 aperture 6 - 25mm. from the posterior extremity. The eyes 

 are numerous and continued in close-set single series round 

 the horse-shoe-shaped anterior extremity as usual. 



The dorsal surface in life is dark-brown or almost black, 

 with microscopic pale-bluish specks all over. The ventral 

 surface is pale-brown, shading into the darker dorsal tint. 

 The sides of the body are sprinkled with small bluish- white or 

 very pale-greenish specks visible to the naked eye, and ex- 

 tending (for a short distance only) both dorsally and ventrally. 

 The anterior extremity in one of the two spirit specimens is 

 dark-brown above and nearly white beneath, in the other it 

 has a pinkish tint dorsally. 



Locality. — Whangamarino, Chatham Island. January, 

 1901. Two specimens (rotten wood). 



Geoplana agricola, Dendy. 



I have much pleasure in again recording this species, 

 hitherto known only from a single specimen. On the 

 18th November, 1897, I received four typical living specimens 

 collected by Mr. R. M. Laing at St. Martin's, near Christ- 

 church. The animal when crawling was long and narrow, 

 strongly convex above, flat below, uarrower in front. The 

 largest specimen in spirit measures about 57 mm. in length by 

 5 mm. in greatest width, with the genital aperture 15 mm. and 

 the peripharyngeal aperture 26 mm. from the posterior ex- 

 tremity. The body in spirit is convex dorsally and charac- 

 teristically concave ventrally, with inturned lateral margins; 

 tapering gradually and evenly in front, more suddenly behind. 



In life the dorsal surface showed a rather narrow median 

 longitudinal band of pale dull-yellow, followed on each side by 

 a very broad band (twice the width of the median) of dark 

 purplish-brown, almost black ; then comes on each side 

 another band of pale dull-yellow about as wide as the median 

 band, bounded externally by a very narrow but well-defined 

 marginal or slightly supramarginal line of dark purplish- 

 brown. Anterior tip in life pink ; ventral surface pale greyish- 

 yellow, with two broad bands of finely mottled greyish-brown 



