1893.] OJiT THE eSNITALIA OP EBITISH BARTHTVORMS. 319 



first synonym on the list after those already cited is C. canoroides, 

 kS. Miiller (Verhandelingeu nat. Gesch. Nederland. overz. Bez.,' 

 Land- en Volk. p. 235). It is far from clear that birds belonging 

 to more than one species are not included, and as the wing is 

 said to measure 8^ inches in some of the specimens, those slans, 

 as Seebohm has pointed out, must belong to G. canorus. Under 

 these circumstances the name, which is barbarous, may be safely 

 ignored, the more so that it is not clearly antecedent to C. saturatus, 

 a name of Hodgson's published by Blyth in 1843 (J. A. S. b! 

 xii. p. 942) and quite unobjectionable. ' The description given by 

 Blyth (J. A. S. B. xi. p. 903), who regarded this form at the time 

 as an old C. micropifrus, though brief, was sufficient for its recog- 

 nition. I propose, therefore, to use the name G. saturatus for the 

 Himalayan Cuckoo. 



4. Further Observations on Variations in the Genitalia o£ 

 British Earthworms. By M. F. Woodward, Demon- 

 strator of Zoology, Royal College of Science, London. 

 (Communicated by Prof. G. B. Howes.) 



[E«ceived March 15, 1893.] 



(Plate XXIV.) 



In a former communication on this subject, published in the 

 Society's ' Proceedings' for 1892 (p, 184), I described an abnormal 

 Earthworm (^?fo?oiop/«om, sp. inc.) possessed of six additional pairs 

 of ovaries, situated one on the segment immediately in front of the 

 normal pair and the remaining five pairs on the segments behind it. 



I have since examined very carefully a large number of Earth- 

 worms belonging to the genera Lumhricus and Allolohophora, and 

 now find that the presence of additional pairs of genital glands, 

 both ovaries and testes, is of by no means rare occurrence. 



In order to form some idea as to the proportion of these abnormal 

 individuals, I took 50 worms at hazard from three localities near 

 London and comprising five species \ and found 14 specimens, or 

 28 per cent., in which additional genital glands were present, or, 

 practically, one worm in every four abnormal. The proportion is, 

 however, very variable, as is proved by the fact that whilst most 

 of the abnormal individuals came from one locality, in worms 

 from other places abnormalities were much rarer. 



These variations all involved a repetition of the genital glands, 

 but the individuals varied among themselves : thus in four speci- 

 mens there were present additional glands on the mesenteries 



^ AUolohophora longa, 23 specimens : 17 normal, 6 abnormal. 

 A. turgida, 13 specimens : 9 normal, 4 abnormal. 

 A. cMoritica, 2 specimens : both normal. 

 Lumhricus terrestris, 8 specimens: 6 normal, 2 abnormal, 

 L. rube/lus, 4 specimens : 2 normal, 2 abnormal. 



22* 



