Friend : Oligochcets of Great Britain and Ireland. 79 



details take time, and it is better to delay publication, than to 

 increase the existing confusion. Five species. 



V. Enchytr^id^. 



Henlea dicksoni Eisen. 



,, nasuta Eisen. 



,, hibernica Southern. 



,, ventriculosa Udek. 



,, lampas Eisen (See 



Naturalist,' 191 1, p. 321). 

 Henlea perpitsilla Friend (See 



Naturalist,' 191 1, p. 320). 

 Henlea puteana Vejd. (See 



Naturalist,' 191 1, p. 319). 



The 



The 



The 



The 



Henlea rosai Bretscher (See 

 Naturalist,' 191 1, p. 320). 

 Henlea tenella Eisen (See ' The 



Zoologist,' December 191 1). 

 Bryodrilus ehlersi L^de. 

 Buchholzia appendiculata Buch. 



,, fallax Mich. ' 



Marionina sphagnetorum Vejd. 



,, crassa Clap. 



,, semifusca Clap. 



,, ebudensis Clap. 



Marionina appendiculata Friend. — A brief note on this'- 

 species appeared some years ago. The worm was found in 

 backwash at Askham, near Furness. During the years which 

 have elapsed, nothing like it has again been found, and my 

 notes and drawings shew it to be a distinct species. 



I have at least three other species under observation, which 

 will be described in the new year. 



trfcus albidus Heule. 

 globulatus Bret, 

 buchholzii Vejd. 

 argenteus Mich, 

 turicensis Bret, 

 pellucid us Friend, 

 sabulosus Southern, 

 lobatus Southern. 



Lumbricillus litoreus Hesse. Enchy 



,, subterranevis Vejd. 



,, verrucosus Clap. 



,, fossarum Tauber. 



,, pagenstecheri Ratz. 



,, niger Southern, 



evansi Southern. 

 Mesenechytra?us fenestratus Eisen. 

 ,, beumeri Mich. 



,, setosus Mich. 



celticus Southern. 



Enchytrseus minimus Bret. (See ' The NaturaUst,' 1911, 

 p. 412.^ — Since found abundantly in earth by a drain at Church 

 Gresley, and elsewhere. 



EnchytrcBus exiguus Friend (' The NaturaUst,' 191 1, p.. 

 415). — The genus Fridericia, of which 19 species were reported 

 by Southern, now stands at 30 or more species. I give South- 

 ern's list, for the sake of completeness, first ; adding the species 

 which he omitted, and those since discovered, in italics. The 

 subject was considered in a paper presented by me to the 

 R.M.S., November 15th, 1911, in which keys will be found to- 

 help the student in identifying the various species. L still 

 have a few more species to determine. 



Fridericia bulbosa Rosa. 



,, bisetosa Lev. 



,, magna Friend. 



,, aurita Issel. 

 leydigi Vejd. 



,, lobifera Vejd. 

 1912 Mar. I. 



Fridericia michaelseni Bret, 

 connata Bret, 

 polychjeta Bret, 

 bretscheri Southern, 

 striata Lev. 

 paroniana Issel. 



