BY THOS. STEEL. 105 



Geoplana atrata, n.sp. 



(PL VII. fig. 10.) 



Dorsal surface intense black without any visible markings. 

 Ventral surface, a pair of grey fairly well defined stripes bounding 

 a median black stripe, and in turn bounded on the margins by 

 the black ground colour. The median and paired stripes and 

 marginal spaces of ventral surface about equal widths. A single 

 row of large conspicuous eyes round anterior tip and for some 

 mm. down the sides, but no side gi'ouping could be traced, the 

 eyes possibly being hidden by the dark pigmentation of the body. 

 Pharyngeal aperture in spirit specimens between half and two- 

 thirds from anterior end. Genital aperture not observed. 

 Length 25 mm. by 1 mm. when crawling; same specimen in spirit 

 19 mm. 



Type in Australian Museum, Sydney; register number G. 1509. 



At first sight this planarian might readily be mistaken for a 

 Rhynchodetmis, but its generic identity is at once made sure by 

 the numerous easily distinguished eyes. It is the darkest 

 Geoplana with which I am acquainted. 



Collected under logs by Mr. J. P. Hill, F.L.S., on Upper 

 Manning River, jST.S.W. 



Geoplana Hillii, n.sp. 

 (PI. vii. fig. 5.) 



Dorsal surface bright sulphur-yellow, with two brown lines 

 dividing it into three longitudinal areas of about equal width. 

 At the anterior end the lines thicken and then coalesce, forming 

 a brown tip which is in strong contrast to the yellow ground 

 colour. "Ventral surface paler yellow than the dorsal, fading to 

 a nearly white watery-looking central longitudinal zone. Eyes 

 numerous and readily seen, extending in a single row round 

 anterior tip, with the usual side grouping, though somewhat 

 sparse, a few mm. from the tip, and then in a single row down 

 the sides and round the posterior end. Pharyngeal aperture in 



