20 THE SCOTTISH NATURALIST 



instance the Scottish specimens had a convex posterior. 

 For the rest the original description held good. 



Having been for some time engaged on the special study 

 of Enchytraeids, I am glad to be able to give the names 

 without any hesitation. The genus Fridericia is very large, 

 and there has hitherto been much confusion in certain 

 groups. I have now classified the whole by means of the two 

 most reliable characters the setae and the spermathecae 

 and have weeded out the synonyms and uncertain forms. 

 The Ardpeaton list is as follows : 



i. Enchytrceus albidus : the most common of all the Enchytrreids, 

 taking the place in this group which Lumbricus terrestris 

 occupies among the Lumbricidae. 



2. Fridericia michaeheni, Bret. 



3. Fridericia bisetosa, Levinsen. 



4. Fridericia polychceta, Bret. 



5. Fridericia bi/Ibosa, Rosa. 



6. Henlea rhestica, Bret. 



7. Mesenchytrcei/s beuv/eri, Mich., which appears to he an 



addition to the Scottish list. 



There must be a good many undescribed species still 

 existing in Scotland, and it would be a great pleasure to me 

 to examine collections from different parts of the country. 



Hygromia fusca in Dumbartonshire. Mr William Evans 

 has sent a notable addition to the fauna of this vice-county, in an 

 example of Hygromia fusca, which he took at Beaton, on the shore 

 of Loch Long, 21st September 191 7: he also sent an immature 

 Helicigona arbustorum, type, several Pyramidula rotundata, two 

 Hvali?ria cellaria, one H. nitidula, a couple of young H. alliaria, 

 a small Vitruia pellucida, and a couple each of Pupa cy/indracea and 

 Clausilia bide/itata, all taken at Ardpeaton, also on the shore of 

 Loch Long, 4th October. Of slugs, he sent an Arioii hortensis and 

 a three-quarter-grown example' of Limax maxtmus var. obscura, 

 taken at the same locality on the 8th October ; also a half-grown 

 L. arborum var. alpestris taken there on the 20th October. It is of 

 interest to see these little collections made in somewhat out-of- 

 the-way localities. W. Denison Roebuck, 259 Hyde Park Road, 

 Leeds. 



