296 FRIEND: A NEW SPECIES OF LUMBRICUS. 
while running backwards, ~ closely connecting the male pores 
we find band or ri 
which is often seen very Nistnce in the Red Worm (ZL. rudedlus 
Hoffm.). The girdle occupies five segments only (33-37). Every 
species of Zumébricus previously found in Great Britain possessed six 
girdle segments, but we find an analogous instance on the continent 
where one species (Z. me/ibeus Rosa) is described as having a girdle 
of five segments. Along these segments there runs on either side 
a prominent band (¢ubercula pudertatis), which appears to cover and 
connect the whole girdle. In reality, however, the band occupies 
ee 34-37- The most remarkable feature about the Dobie if. 
the large clitellar papillz on the 34th and 36th 
have no other species of Lumbricus which regularly sian these 
organs. In the allied genus Allolobophora they are frequent. 
I once observed them in a specimen of the Red Worm 
(Z. rube/lus Hoffm.) received from Dublin, but no other example has 
hitherto come under my notice. 
The position of the band (¢udercula pubertatis) is of extreme — 
interest, as we are able, by the discovery of this species, to fill — 
a curious gap. Dr. Rosa, some years ago, drew up a chart in which 
he displays the arrangement to the clitellar band in the different 
species of Lumbricus. We are now able to modify and i improve | Me 
ae 
tab 
L. rubellus Hoffm. ear /28 | 29 30 | 31 | 
L. purpureus Eisen... ... “ 29 | 30 | 31 | 32 
ZL, WeebeS BIME Oa | 30 31 32 | 33 
L. tyrtacus Savigny? a ages 3 | 32 33 34. 
L. forma No. 5, Rosa® eens tee tee oe 32 | 33. Sahl 
L. terrestris Lim. ... . = ae es) oe | 33. 34 | 35 | 36| ae 
L, papillosus Friend... ... 8 oe 2 ee 4 35 36 er a 
i. rubescens Friend? a ee = fone on — te | | 35 36| 37| | 
A similar chart wield te pre pared to pokbie us to see at a glance 
the position of the first dorsal pore. I give the Irish forms. beset 2 
in order that it wey. be : 
ee a our knowledge sali 
fies Ton se ithe met Ale ofa Rom. i a 
_ ® A form described by R ‘I Lumb. del P ae. 
si 
