LUMBRICUS. 61 



L. terrestris. There are 7 or 8 segments in it, and 30 or 31 between 

 it and the head. The anterior segments are nearly as long as their 

 diameter, dimidiate ; the posterior are numerous, short, with a single 

 ring, and the anal is not more highly coloured than the others. 

 They are all striolate. Much used for bait. 



(«) Hammersmith, Dr. J, E. Gray. 



(b) Kelso, Roxburghshire, Dr. G. Douglas. 



5. L. fcetidus, body banded with alternate brown and yellow seg- 

 ments. Length 2-3". 



Duggs, Mouf. Theat. Insect. 278. 



Lumbricus fcetidus, Duges in Ann. des Sc. nat. ser. 2. viii. 21. pi. 1. 



f. 4. Grube, Fam. Annel. 99. 

 Lumbricus annularis. Templet on in Loud. Mag. Nat. Hist. ix. 234. 

 Lumbricus olidus, Hoffmeister, Art. der Regenw. 32. pi. fig. 5. opt. 

 The Brandling, Hofland, Angl. Man. 10. Stoddart, Angl. Comp. 113. 

 Brandling or Bramble-worm, Younger, Riv. Angling, S6. 



Hab. Very old dung-heaps. 



Obs. There are two abbreviate impressed lines on the second seg- 

 ment behind the head. The clitellus is composed of six segments, 

 and there are 26 between it and the head. The bands are most 

 conspicuous on the posterior portion, which has about 64 segments, 

 and is flattened. Exhales a disagreeable odour, of which it is diffi- 

 cult to rid oneself. Much esteemed by the angler. 



(a) Hammersmith, Dr. J. E. Gray. 



(5) Berwick, Dr. Johnston. 



(c) Kelso, Roxburghshire, Dr. G. Douglas. 



6. L. tetraedrus, body quadrangular behind; vulvae below the 15th 

 segment ; clitellus with 4-6 segments. Length 3". 



Lumbricus tetraedrus, Duges in Ann. des Sc. nat. ser. ^. viii. 17 & 23. 

 Grube, Fam. Annel. 99. 



Hab. Banks of ditches. 



Obs. There is a single specimen in the Museum Collection, and it 

 has no clitellus. The species is said to be of a dull brown colour, 

 but the specimen in spirits is bluish-grey. It is of the usual form, 

 but the part posterior to the clitellus is tetragonal, the dorsum as 

 usual a little convex, the venter narrowed and flattened. Most of 

 the segments are dimidiate. The first ten are narrow and nearly 

 equal in diameter, when they are succeeded by four or five twice as 

 broad forming a pseudo-clitellus, otherwise indistinctly defined. The 

 segments posterior to this are narrow, equal, and about 100 in num- 

 ber ; the anal semiovate. Head obtuse, with a broad sinus on the 

 second segment occupying about one-half of its length. Bristles 

 geminate, on the angles. Vulvae on the 14th or 15th segment. 



(a) Devon, Mus. Leach. 



