6o 



IJRITISH ANNELIDS. 



POSTSCRIPT. 



The following section came to hand after the first two pages of 

 this paper had been printed, in the March number of the Essex 

 Naturalist. The numbers on page 47 {anie) should, of course, be 

 increased by one — the present paper adding thirty-four to the 

 published well-sections, bringing up the total to 277. 



Ash don. New House Farm. 1891. 

 Made and communicated by Mr. G. Ingold. 

 ^\'ater-level 54 feet down. 



[Glacial I [Boulder I Brown clay 12 ... 12 



Drift! 1 Clay] 1 Blue clay 42 ... 54 



-J (Gravel 3 ... 57 



BRITISH ANNELIDS. 



WITH ESPECJ.\L REFERENCE TO THE EARTHWORMS OF ESSEX. 

 By REV. HILDERIC FRIEND, F.L.S. 



{Continued from page 33.) 



npWENTY years ago every earthworm was known by the general 

 name of '■''Lu/ni^riciis." Risen carefully analysed the group in 

 1873, and referred our European species to three or four different 

 genera. He was not altogether consistent with his own rules, and 

 failed accurately to determine the relative position of some of his 

 species ; but we are, nevertheless, indebted to him for reducing the 

 fjrmer chaos to something like order. It follows to-day that there 

 are probably not more than half a dozen species of the genus 

 Lumbricus^ as now defined, throughout the whole of Europe. Four 

 of these are British, and three are found in Essex. There is every 

 reason to hope that the fourth may be found in that county this year, 

 seeing that it has been discovered in Middlesex, Kent, and Sussex. 

 The fourth species is new to science, having been added to the 

 British list last year through my researches into the worm-founa of 

 Yorkshire. 



It is my purpose in this paper to deal solely with the modified 

 genus Lunilfficus, and in so doing I shall describe the three species 

 indigenous to Essex. I have to thank Mr. VV. Allen, of Canning 

 Town, for a constant succession of fresh consignments, with valuable 

 data respecting habitat and other important factors ; and I am in- 



