DESCRIPTIONS OF GENERA AND SPECIES 707 



(15) Allolobophora submbicunda, EISEN. 



A. subrubicunda, EISEN, Ofv. Svensk. Akad., 1873, No. 8, p. ,51. 



A. arborea, EISEN, ibid., p. 47. 



A. tenuis, EISEN, ibid., 1874, No. 2, p. 44. 



Lumbricus subrubicundus, LEVINSEN, Vid. Med., 1883, p. 242. 



Octolasion subrubicundum, OERLEY, Ert. termesz. Kor., xv, 1885, p. 20. 



A. putris Hoffitn. forma subrubicunda Eisen, MlCHAELSEN, JB. Hamb. wiss. 



Anst., viii, 1891, p. 18. 



L. (Allolobophora) subrubicundus, VAILLANT, Anneles, p. 143. 

 L. (Allolobophora) tenuis, VAILLANT, Anneles, p. 144. 

 L. (Allolobophora) arboreus, VAILLANT, Amide's, p. 149. 

 A. putris, MICHAELSEN, Arch. Ver. Nat. Meckl., 1890, p. 49 (?in part.). 

 A. subrubicunda, formae typica et arborea, MICHAELSEN, JB. Hamb. wiss. 



Anst., vii, 1890, p. 15. 



A. (Dendrobaena) subrubicunda, FKIEND, J. Linn. Soc., 1892, p. 29. 

 A. (Dendrobaena) arborea, FRIEND, ibid., p. 301. 

 P = L. puter, HOFFMEISTER et ALII. 

 ? = A. Fraissei, OERLEY, Zool. Anz., 1881, p. 285. 



Definition. Length, 75 mm..; breadth, 0*4 mm.; number of segments, no. Clitelliim, 

 XXVI-XXXI. First dorsal pore V/VI. Setae paired, but not closely. Tubercula 

 pubertatis on XXVIII-XXX. Spermathecae, one pair in X, opening in line with lateral 

 setae. Hab. Europe ; Azores ; N. America ; Patagonia. 



This is another species with a complex synonymy. EISEN united his two species, 

 A. tenuis and A. arborea, which were formerly held to be distinct, after the 

 examination of a larger number of specimens ; in the same paper he further 

 said : ' Some of the specimens (of A. tenuis) . . . also show a swelling on the 

 twenty-seventh (twenty-eighth) segment, which might be mistaken for a tuberculum 

 pubertatis, and which also indicates the relation to the preceding species, A. subru- 

 bicunda, but with which it never occurs.' LEVINSEN has placed all three together 

 under the name ' subrubicundus,' a position which MICHAELSEN has also taken up. 

 MICHAELSEN, however, distinguishes the three supposed species as three ' forms ' of 

 one species ; he has added to these the species ' constricta ' of ROSA, and a new form 

 ' horten&is ' ; the former is described in the present work as a distinct species, and 



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