708 OLIGOCHAETA 



the latter has been shown by ROSA to be a variety of his A. veneta. It will be 

 noticed, therefore, under the description of that species. 



The fact that this species has only a single pair of spermathecae, is a point of 

 resemblance to A. boeckii, with which, indeed, it may have been partly identified by 

 VEJDOVSKY, since he places among the synonyms of his Dendrobaena rubida both A. 

 boeckii and Lumbricus puter of HOFFMEISTEE, which ROSA, and others regard as 

 probably a synonym of the present species. These two species differ markedly in 

 the position of the clitellum and the tubercula pubertatis. 



I have not included in the list of synonyms of this species Enterion rubidum of 

 SAVIGNY, ROSA (15, p. 76) ; though regarding it as ' species inquirenda,' and as not 

 corresponding perfectly to A. putris, thinks that it is probably the same. 



(16) Allolobophora icterica, ROSA. 



A. icterica, ROSA, Att. R. 1st. Venet., 1886, p. 685. 



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

 p. 183. 



Definition. Length, Somm.; breadth, $mm.; number of segments, 190. Clitellum, XXXIV- 

 XLIV. Setae strictly paired. Tubercula pubertatis forming a ridge along clitellar 

 segments. Spermathecae in X, XI, opening anteriorly in line with outer setae. Hob. 

 Italy. 



ROSA, who has described the species, identifies it with inconsiderable doubt with 



SAVIGNY'S Enterion ictericum. This identification depends chiefly upon the similar 



4 position and extent of the clitellum, which is only paralleled in A. gigas and 



A. dubiosa. None of the two later species can be confounded with E. ictericum, as 



they have not paired setae. 



The principal difference between SAVIGNY'S E. ictericum and the species called 

 A. icterica by ROSA, is that the former has four pairs of spermathecae. ROSA, 

 however, states that in his species one individual had the two pairs of spermathecae 

 doubled. Something of the same kind may possibly account for the ' four ' pairs of 

 spermathecae in SAVIGNY'S species. 



(17) Allolobophora hispaiiica, UDE. 

 A. hispanica, UDE, Z. wiss. Zool., 1886, p. 135. 



Definition. Number of segments, 220. Clitellum, XXIXXLIII. Setae paired. First dorsal 

 pore, XII/XIII. Tuber cwla pubertatis on all the clitellar segments (?). Hab. Spain. 



