36o THE SCOTTISH NATURALIST 



On 24th July 1 9 15 I found the species in some numbers under 

 stones lying among bilberry, etc., at an elevation of fully 2000 ft. 

 on Meall Cion Dearg, a hill on the west side of Loch Treig in 

 West Inverness. Both adult and immature examples were present, 

 the latter perhaps predominating. — William Evans, Edinburgh. 



Some Additions to the List of "Forth" Nematoda. — On 



examining some seaweeds taken from a rock-pool at Gullane Point 

 on 4th September (1915), I found a colony of Nematodes, examples 

 of which were sent to Mr R. Southern, Dublin, who has recently 

 been studying this group of worms in connection with the Clare 

 Island Survey, and he tells me they are adult males and females 

 of Oncholaimus vulgaris, Bastian. The average length of the 

 worms is roughly half an inch. Earlier in the year (May) numbers 

 of a much smaller Nematode were discovered in water brought 

 home along with seaweeds, serpula-covered stones, sea-anemones, 

 etc., from near low-water mark on the coast at Longniddry. These 

 Mr Southern identified as adult males of a species of Mo/iohystera, 

 but at present he cannot say more about them. To him I am also 

 indebted for the name of a Nematode I found on 2nd January 

 1909 under a dead branch lying on the ground in a wood near 

 Winchburgh, Linlithgowshire. It is, he says, Mermis uigresce/is, 

 Dujardin, a species which in its early stages is parasitic on certain 

 insects, and when mature lives in the soil. The length of this 

 specimen is about iJ, inches. A " mermithogyne " ant {Lasiiis 

 JlavHs, 5 ), that is, one parasitised by a Mermis, was taken by me 

 on the Isle of May on 24th September 1910. A preliminary list 

 of Forth Nematoda is given in my paper on the fauna of the area, 

 published seven years ago in the Proceedings of the Royal Physical 

 Society (vol. xvii., pp. 24-25). — William Evans, Edinburgh. 



