TERRESTRIAL PLANARIANS IN SCOTLAND 231 



SABINEA SEPTEMCARINATA, Sabine. One of the principal points 

 of difference between Sabinea and Crangon is that in the former the 

 second pair of thoracic legs are not chelate but simple. The only 

 known British example of this species was captured in 1861 by the 

 Rev. A. M. Norman sixty miles east of Shetland, at a depth of eighty 

 to ninety fathoms. This is the only species among those enumerated 

 here that has peculiarly arctic distribution ; and probably when the 

 seas around the Shetland Islands come to be more thoroughly 

 examined other arctic forms may be obtained. 



ON THE OCCURRENCE OF TERRESTRIAL 

 PLANARIANS IN SCOTLAND. 



By W. T. CALMAN, D.Sc., University College, Dundee. 



ALTHOUGH terrestrial species of planarian worms have long 

 been known to occur in England, and have recently been 

 recorded from many localities in Ireland by Dr. R. F. 

 Scharff, they do not appear to have been observed hitherto 

 in Scotland. I have lately met with a species in the 

 neighbourhood of Kirkmichael, in Perthshire, and I wish 

 to call attention to the probable occurrence of at least one 

 other native species in this country. The land-planarians 

 are particularly interesting from the point of view of 

 geographical distribution, and it is very desirable that the 

 range of our British species should be exactly determined. 

 A full account of all the species will be found in von 

 Graffs great monograph, 1 and short descriptions of the 

 British forms are given by Scharff. 2 



Rhynchodemus terrestris (O. F. Miiller). This species 

 was described so long ago as 1774 by the Danish zoologist 

 O. F. Miiller, who says of it, " Primo intuitu juniorem 

 Limacem crederes " ; and indeed its close resemblance to a 

 small grey slug has no doubt often caused it to be over- 

 looked by collectors. Large specimens may be about an 

 inch in length when extended by about -^ inch in breadth 



1 "Monographic der Turbellarien, II. Tricladida Terricola (Landplanarien)." 

 1899. 



- "Irish Naturalist," ix. pp. 215-218, September 1900, 



