126 Proceedings of the Royal Society of Victoria. 



extremity. The colour of the living animal is milk-white 

 all over, sometimes with a j-ellowish tinge. 



This very small Planarian was met with in abundance 

 both at Cooranancl on the Burnett River. I at first thought 

 it might be the young of Geojjlava alba but mici'oscopical 

 examination showed it to be sexually mature and, moreover, 

 no large specimens were met with. It may possibly be a 

 dwarf variety of G. alba, but careful anatomical investigation 

 will be required to decide this point. Meanwhile it appears 

 advisable to give it a distinct name. 



Localities. — Burnett River ; Cooran. 



4. Geoplana regiiia, n. sp. 



(Plate XI, Figs. 1, 1«, lb.) 



The body is remarkably broad and, when at rest, very 

 much flattened on both surfaces. When the animal is 

 crawling, however, the dorsal surface is strongly arched and 

 the body tapers very gradually in front and behind. When 

 crawling the animal measures about 66 mm. in length and 

 5"o mm. in greatest breadth. In spirit the body is flat or 

 even concave on the ventral surface, but pretty strongly 

 arched on the dorsal, and the posterior half of the body is, 

 on an average, a good deal broader than the anterior half. 

 The peripharyngeal aperture is decidedly behind the middle 

 of the ventral surface but in front of the junction of the 

 middle and posterior thirds. The genital aperture is about 

 half way between the peripharyngeal aperture and the 

 posteiior extremity. The eyes are arranged as usual in the 

 genus. 



The ground colour of the dorsal surface is rich gamboge- 

 yellow, almost orange, interrupted by eleven longitudinal 

 stripes of varj'ing shades of brown, as follows (Fig. \a) : — 

 In the mid-dorsal line there is a very broad stripe of very 

 dark, rich brown ; on either side of this median stripe is a 

 band of ground colour of only about half the width ; then 

 comes a still narrower and somewhat faint stripe of light 

 brown ; then another band of ground colour similar to the 

 last ; then another brown stripe a good deal darker than the 

 last ; then another band of groun<l colour as befoi'e ; then 

 another still darker stri[)e of brown ; then another band of 

 ground colour as before ; then another brown stripe, this 

 tune iio-ht-coloured ; then another band of o-round colour as 



