722 OLIGOCHAETA 



It will be observed that one form only is wanting to complete the symmetry of 

 the first seven species, if, that is to saj^, we allow L. tyrtaeus of Savigny and 

 L. papillosus of Fkiend. 



(i) Lumbricus rubellus, Hoffmeistee. 



L. rubellus, Hoffmeistee, Arch. f. Nat. 1843, p. 187. 

 Enterion rubellum, Oeeley, MT. Akad. Math, xvi, 1880, p. 588. 

 Ii. (Iiumbricus) rubellus, Vaillant, Annel^s, p. 1 26. 



Definition. Lenglh, 120 mm.; diameter, 6 mm.; number of segments, 120. Colour, red 



hrown or purple. ClHellum, [XXVI) XXVII-XXXII. Tulercula pubertatis, XX7III, 



XXIX, XXX, XXXI. First dorsal pore, 7II/FIII. Male pores almost invisible. 



Hob. — Europe; N, America; Siberia; Nicobar ; New Zealand. 



KoSA (15) describes the colour as ' bruno rossiccio.' In my New-Zealand examples 



it is distinctly purple, as in the next species. The clitellum, however, agrees with 



that of L. rubellus, rather than with that of L. castaneus. ' 



(2) Lumbricxis castaneus (Savigny). 



Enterion eastaneum, Savigny, Mdm. Ac. Roy. Fr. Inst. (Analyse), v, 1826, 



p. 180. 

 E. pumilosum, Savigny, ibid., p. 181. 



Lumbrieus castaneus, DuGES, Ann. Sci. Nat. (2), viii, 1837, p. 22. 

 L purpureus, Eisen, Ofv. Svensk. Akad. 1871, No. 10, p. 956. 

 Definition. Length, ^00 mm.; diameter, 4 mm..; number of segments, 90. Colour chestnut or 

 violet brown. Clitellum, XXVIII— XXXIII. Tubercula pvhertatis, XXIX, XXX, XXXI, 

 XXXII. First dorsal pore, VI/VII. Hab. — Europe ; N. America. 

 This species, like the last, has almost invisible male pores, owing to the absence 

 of a glandular swelling, such as characterizes so many Lumbricidae. The prostomium 

 has a transverse furrow, often (but not always) wanting in L. rubellus. It is 

 apparently only to be distinguished by the different position of the clitellum and 

 the tubercula pubertatis. 



(3) Ltunbricus meliboeus, Rosa. 

 L. meliboeus, R08A, Lombr. Piemont., 1884, p. 21. 

 Definition. Length, 90 mm. ; diameter, 5 mm. ; number of segments, 1 24. Colour violaceous, 



