ON THE VICTORIAN LAND PLANARIANS. 75 



end than to the opening of the peripharyngeal chamber. The ground colour of the 

 dorsal surface is yellow (pale or bright) and there are two strong brown stripes, one 

 on each side of the middle line, separated by a considerable interval and meeting at 

 the anterior and posterior ends. The ventral surface is cream-coloured. A specimen 

 in spirit measured 23 mm. in length and 4-5 mm. in greatest breadth. 



Locality. — M'Mahon's Creek, on the Upper Yarra (Victoria). 



8. Geoplaim alba, n. sp. (Figs. 10, 11). 



Body broad and much flattened, strap-shaped; wlien at rest often crenated at the 

 edges, the crenations disappearing when the animal is fully extended ; sub-triangular 

 in transverse section, the apex of the triangle with a very wide angle ; tapering 

 very gradually in front and unusually suddenly behind, so that the hinder end of 

 the body is blunt, especially when the animal is at rest or in spirit. The opening of 

 the peripharyngeal chamber is near the junction of the middle and posterior thirds of 

 the body and the genital opening nearer to it than to the hinder end of the body. 

 There are no stripes and except for the pinkish anterior tip the entire body is of a 

 very pale and nearly uniform tint. I have noted specimens from M'Mahon's Creek 

 as "cream-coloured or white" and specimens from Macedon as "peach-coloured or 

 yellow flesh" and "brownish flesh-coloured all over, dorsally and ventrally, with 

 beautiful peach-coloured tip." Specimens from Macedon measured when crawling 

 about 65 mm. in length and 4 mm. in greatest breadth, but I have larger specimens 

 from M'Mahon's Creek and from Warragul. 



Localities. — M'Mahon's Creek, Warragul, Macedon, Croajingolong (Victoria). 



9. Geoplana hoggii, n. sp. (Figs. 4, 6.) 



Body almost elliptical in section but flattened beneath, long and narrow, tapering 

 gradually towards the anterior extremity and more suddenly towards the posterior. 

 Opening into the peripharyngeal chamber nearly in the middle of the ventral surface 

 and genital aperture about one-third of the distance between it and the posterior end 

 of the body. The ground colour of the dorsal surface is rather pale, translucent 

 yellow, or greenish yellow. There are four stripes, two on each side of the middle 

 line and extending throughout the entire length of the body. The two stripes 

 nearest the middle line are separated from one another by only a very narrow band 

 of ground colour and are usually of a green colour with a tinge of indigo ; they may, 



