DESCRIPTIONS OF GENERA AND SPECIES 701 



A. minima, ROSA, Lumbr. Piemont., 1X84, p. 39. 



Octolasion minimum, OERLEY, Ert. termesz. Kb'r., xv, 1885, p. 22. 



L. (Dendrobaena) pygmaeus, VAILLANT, Annele's, p. 120. 



A. pygmaea, ROSA, Mem. Ace. Torino, 1893, p. 40. 



Definition. Length, 13 mm.; diameter, i mm.; number of segments, 95. Setae distant. 

 Clitettum, XXXIII-XXXVII. Tubercula pubertatis on XXXV, XXXVI, XXXVII. Male 

 pores conspicuous. Spermatheca, t/iree pairs, opening dorsally. Hab. France ; Austria ; 

 Italy. 



(3) Allolobophora gigas, DUGES. 



Lumbricus gigas, DUGES, Ann. Sci. Nat., (a) viii, 1837, p. 290. 

 A. gigas, OERLEY, Ert. termesz. Kor., xv, 1885, p. 25. 

 L. (Allolobophora) gigas, VAILLANT, Annele's, p. 130. 



Definition. Length, 6iomm.; breadth, 17 mm. ; number of segments, more than 300. Cli- 

 tettum, XXX-LL Setae strictly paired. Tubercula puberlatis, a ridge on each side 

 occupying ten or thirteen segments. Spermathecae, seven pairs. Hab. Italy ; S. France. 



The enormous size of this species distinguishes it from all other European species. 

 720 mm. is given as the extreme length of the species ; the measurement in the definition 

 is taken from VAILLANT. 



(4) Allolobophora terrestris (SAVIGNY). 



Enterion terrestre, SAVIGNY, Me'm. Ac. Roy. Inst. Fr. (Analyse), 1826, v, 



p. 1 80. 



Lumbricus terrestris, DUGES, Ann. Sci. Nat., (2) viii, 1837, p. 18. 

 Lumbricus agricola, HoFFMEiSTER, Die bisj. bek. Art. Regenw., 1845, p. 5. 

 A. longa, UDE, Z. wiss. Zool., 1886, p. 136. 



Definition. Number of segments, 180. Clitettum, XXVI, XXVII-XXXV. Setae paired. 



Dorsal pores commewe XII/XIII. Tubercula pubertatis on XXXII-XXXIV. Spermathecae, 



two pairs in IX, X, opening posteriorly in line with lateral setae. Hab. Germany ; 



England. 



The colour of this species is described by UDE as being brownish dark-grey in 



front, paler behind. On segments ix-xi, the ventral setae are borne upon papillae. 



The size and general appearance are stated by UDE to be as in Lumbricus hereuleus. 



The identity of A. longa with the previously described 'Enterion terrestre' is fully 



gone into by ROSA (15, p. 49), who is of opinion (15, p. 77) that L. ter&s may also 



