DESCRIPTIONS OF GENERA AND SPECIES 705 



This is another uncertain ' species, coming so near to A. norde.nskioldii that, if 

 they had not been both described by the same writer, I should have been disposed 

 to put them down as identical. 



(n) Allolobophora tumida, EISEN. 

 A. tumida, EISEN. Ofv. Svensk. Akad , 1874, No. 2, p. 45. 



Definition. Length, about 30 mm. ; number of segments, 50. Colour reddish brown. Setae 

 paired at four angles of quadrangular body. Clitellum, XXII XXIX. Tubercula 

 pulertat.it, XXVII, XX7III. Hal. New England; Denmark^. 



There is no doubt that ROSA'S suggestion as to the possibility of this worm being 

 an Allurus is reasonable. 



(12) Allolobophora parva, EISEN. 



A. parva, EISEN, Ofv. Svensk. Akad., 1874, No. 2, p. 46. 

 Lumbricus parvus, TAUBEK, Ann. Dan., 1879, p. 68. 



Definition. Length, about 100 mm. ; number of segments, about 100. Setae paired closely, 

 but dorsal more so than ventral. Clitellum, XXIF-XXX. Tubercula pubertatis, 

 XXV-XXX. Hab.New England, Denmark*. 



(13) Allolobophora eiseni (LEVINSEN). 



Lumbricus Eiseni, LEVINSEN, Vid. Med., 1883, p. 241. 

 A. (Dendrobaena) Eiseni, FRIEND, J. Linn. Soc., j 892, p-3O2. 

 A. Eiseni, ROSA, Mem. R. Ace. Torino, 1893, p. 66. 



Definition. Length, 40 mm. ; diameter, 4 mm. ; number of segments, no. Colour iridescent 

 violet above, red-brown on clitellum. Setae strictly paired. Clilellum, XXIV, XXF-XXXII. 

 . Tubercula pubertatis, none. First dorsal pore, V/VI. Spermathecae absent. Sperm-sacs 

 in XI, XII. Hab. Europe generally. 



(14) Allolobophora boeckii (EISEN). 



Lumbricus puter, EISEN, Ofv. Svensk. Akad., 1870, No. 10, p. 959. 

 Dendrobaena Boeckii, EISEN, ibid., 1873, No. 8, p. 53. 

 D. puter, OERLEY, MT. Akad. Math., xvi, 1880, p. 586. 



1 Fitlc TAUBEB ; but LEVINSEN distrusts the latter's identification. 

 " LEVINSEN doubts TAUBER'S identification. 



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