ON THE VICTORIAN LAND PLANARIANS. 



71 



white. Length 5 cm., extreme breadth 4 mm., month central ; generative apertm-e 

 8 mm., posterior to the mouth. Parramatta, near Sydney, Under the bark of a 

 species of Eucalyptus." (Moseley, loc. cit.) 



A number of specimens brought in spirits by Professor Spencer from Croajin- 

 golong appear to belong to this species. According to Professor Spencer the colour 

 of the living worms was cobalt on the ventral and dark olive green on the dorsal 

 surface, exactly as in G. spcnceri but with a median, dorsal, yellow line. The spirit 

 specimens still show very plainly the narrow median dorsal line, and they also show 

 indications of a narrow, median, ventral light line in the posterior part of the body, 

 apparently not observed in the living animals. They also still exhibit traces of a 

 reddish anterior tip. 



According to Messrs. Fletcher and Hamilton {loc. cit.) there appears to be a 

 certain amount of variation in the colouration of this species. Thus these authors 

 have found specimens without any red tip and with the dorsal median stripe varying 

 from a dirty white to a distinct yellow, changing to white in spirit. These obser- 

 vations make it probable that the Croajingolong specimens are correctly identified as 

 G. ccerulea, though the opening into the peripharyngeal chamber appears to be a 

 little further back than Moseley places it. In shape this Planariau closely resembles 

 Geoplana spenceri. 



Localities. — Sydney, Parramatta, Ryde, Springwood, Mount Wilson, Hunter 

 Eiver (New South Wales); Cairns (N. Queensland); Croajingolong (Victoria). 



2. Geoplana qninquelineata, Fletcher and Hamilton. 



1887. Geoplana qninquelineata, Fletcher and Hamilton, Proceedings of the 

 Linnean Society of New South Wales. Series H., Vol. 2, p. 366, 

 PI. v.. Figs. 4, 6, 15, 16. 



" Under surface whitish. Ground colour above presents considerable variations, 

 pale yellow or nearly orange, dull olive-green, ochreous-brown, reddish-brown, 

 sometimes almost brick-red. The dorsal surface divided into six longitudinal bands 

 by five longitudinal lines, also varying in colour, sometimes a darker and more 

 intense tint of the ground-colour, from dark brown almost black to warm brown or 

 red, their margins irregular when viewed with a lens, arranged as follows: usually a 

 very fine dark line occupies the median line, external to which on each side is a 

 narrow band of ground colour ; outside of which again on either side is a line ot 

 brown or red usually slightly broader and better defined than the mesial line ; each 



