456 



THE ZOOLOGIST. 



1 Rubellus 27 28 29 30 31 32 



2 Castaneus 28 29 30 31 32 33 

 29 30 31 32 33 



3 Melibceus 



[4 Tyrtceus 



5 Studeri 



6 Herculeus 



7 Papillosus 



8 Festivus 



30 31 32 33 34 35] 



31 32 33 34 35 36 37 

 32 33 34 35 36 37 

 33 34 35 36 37(38) 

 34 35 36 37 38 39 



In October, 1893, I remarked (' Naturalist,' p. 296) that L. 

 tyrtceus was probably the same as Allolobophora profuga, and 

 now Dr. Ribaucourt supports my suspicion, though he does 

 not amalgamate the two. The accompanying table or chart 

 gives a bird's-eye view of the British species of the genus which 

 will be helpful to collectors : — 



A Tabular View of the British Lumbrici. 



LUMBRICUS. 



Segments occupied by 



Average. 



Papilue. 



Girdle 



Band. 



First 

 Dorsal 

 Pore. 



Length. 



No of 



Segments. 



Male 

 Pore. 



Else- 

 where. 



1. herculeus, Sav., ) 

 1826 } 



32-37 



33-36 



8/9 



5 in. 



150-200 



15 



26 



2. papillosus, Friend, ) 

 1892 j 



33-37 



34-37 



9/10 



4 in. 



130-150 



15 



34,36 



festivus, Sav. = 

 3. rubescens, Friend, 



1890 . 



34-39 



35-38 



5/6 



4 in. 



100-130 



15 



28 





4. rubellus, Hoffmeister, ) 

 1845 J 



27-32 



28-31 



7/8 



3 in. 



100-120 













castaneus, Sav. = ] 



5. purpureus, Eisen, I 



1870 J 



28-33 



29-32 



6/7 



2 in. 



80-100 







10 



II. Genus Allolobophora. 

 The members of this genus fall more or less naturally into 

 groups, of which the Dendrobcena is the best defined. As a 

 whole the species of this genus may be known by the lip being 

 only partially dovetailed into the 1st segment. There is a curious 

 exception to this rule in A. eistsni, which has the head arrange- 



