BY THOS. STEEL. 



57$ 



think it may be safely identified as an example of series (6) as- 

 above. 



Between these three forms there are numerous intermediate 

 examples which carry us step by step from the typical G. 

 mediol ineata to the extreme var. simularis with live continuous 

 lines. Several small specimens of var. simularis differ from the 

 others in having all the lines diffuse, the spaces of body-colour 

 closely speckled with brown, and the marginal lines distinctly 

 split longitudinally so as to form seven lines in all, but these 

 need not be specially considered, as they are obviously mere 

 extreme variations. 



All the specimens have the lines of a bright red-brown and 

 anterior tip of same colour. The body-colour varies from bright 

 sulphur-yellow to pale cream. Ventral surface white. 



Hob.— Through the good offices of Mr. A. H. C. Zietz, F.L.S., 

 (fee, of the South Australian Museum, I have received specimens 

 from near Adelaide, South Australia; from Miss C. A. Selway, 

 Gilberton; from Miss Eimer, found in her shade-house at Norwood; 

 and, as already mentioned, from Mr. J. W. Mellor. Mr. C. G. 

 Hamilton sent me from Armadale, Darling Ranges, Western 

 Australia, in spirit, two specimens which, though somewhat 

 damaged, I have no doubt belong to the new variety. 



While dealing with the relationship of the above species, it 

 may be well here to mention that Graff (12, p. 374, pi. v., figs. 

 15-16) gives an account of specimens of G. quinquelineata from 

 Victoria, sent to him by Dendy. His tig. 16 is the form which 

 I named var. accentuata (J.oc. cil.), and fig. 15 is the same variety 

 with broad diffuse paired stripes similar to those in the specimen 

 from Milton, N.S.W., before mentioned. 



REFERENCES. 



1.— Darwin, C, Annals & Mag. Nat. Hist., Vol. xiv., 1844. 



2. — Mueller & Schultze, "Beitriige zur Kenntniss der Landplanarien," Abh. 



d. Nat. Ges. zu Halle. 4r. Band, 1856. 

 3.— Moseley, H. N., Phil. Trans. Royal Soc. London, Vol. 164, 1873. 

 4. — Fletcher & Hamilton, Proc. Linn. Soc. New South Wales, 1887. 



