720 OLIGOCHAETA 



(48) Allolobophora nasonovii, KULAGIN. 

 Dendrobaena nasonovii, KULAGIN (fide ROSA, 15). 



Definition. Length, 90 mm.; number of segments, 170. Setae in eight rows. Clitellum, 

 XX7-XXIX. Hab.Suchnm. 



This species is, as ROSA (15, p. 45) points out, close to A. platyura; but he 

 holds it to be probably distinct ; it is evidently but ill denned. 



(49) Allolobophora bogdanovii, KULAGIN. 

 A. Bogdanovii, KULAGIN (fide ROSA, 15). 



Definition. Length, 662 mm.; number of segments, no. Setae distant. Clitellum, XX V-XXX. 

 Tubercula pubertatis, XXVIII, XXIX, XXX. Hab.Suchum. 



(50) Allolobophora caucasica, KULAGIN. 

 Dendrobaena caucasica, KULAGIN (fide ROSA, 15). 



Definition. Length, 40 mm. ; number of segments, 90. Colour dark red, darker above than 

 below. Setae in eight rows, equidistant. Prostomium completely dividing buccal segment. 

 Clitellum, XXV, XXVI-XXIX, XXX, XXXI. Dorsal pores commence IV/V. Hab.Kacila, 

 in the Caucasus (2,200 ft.). 

 This is another doubtful form, of whose internal structure nothing is known. 



(51) Allolobophora oerleyi, HORST. 



Enterion platyurum, FITZINGEK, Isis, 1833, p. 552 (in part.). 



Lumbricus terrestris, var. platyurus, OERLEY, MT. Akad. Math., xvi, 1 880, p. 583 



(in part.). 



Octolasion platyurum, OERLEY, Ert. termesz. Kor., xv, 1885, p. 18 (in part.). 

 A. Oerleyi, HORST, Notes Leyd. Mus., ix, 1887, p. 294. 

 A. platyura, var. depressa, ROSA, Mem. R. Ace. Torino, 1893, p 44. 



Definition. Length, in mm. ; number of segments, 130. Setae distant. Clitellum, XXV- 

 XXX. Tubercula pubertatis, XXVI-XXVIII. Male pores inconspicuous. Spermathecae 

 in VII-X, opening posteriorly by seta IF. Hob. Europe. 

 HORST found some variation in the number of spermathecae, there being sometimes 



only three or four pairs. 



