560 NOTES ON AUSTRALIAN EARTHWORMS, 



name, but his description of this species, probably from the indif 

 ferent material at his disposal is not so full and complete as that 

 of most of the others in his most valuable paper. Moreover the 

 description in the text differs somewhat from that in the explana- 

 tion of the plate. Hence a further knowledge of this species is 

 desirable. 



Hob. — Port Macquarie, New Holland. (Perrier.) 



Obs. — At Mar rick ville, near Sydney, under the same stone, 

 I found three worms which are probably referable to Perrier's 

 genus. They were all about the same size, 120 mm, long and 

 4 mm. broad (spirit specimens), but were evidently immature as 

 not one of them shows the slightest trace of clitellum. On dissecting 

 one of them I found it possessed two gizzards, one in v and one in 

 VI, and it may possibly belong to this genus, though if so it differs 

 in some respects from Perrier's species ; but in the hope of obtain- 

 ing fully developed specimens, I shall postpone a further account 

 of it for the present. 



PERiCHiETA, Schmarda. 



This genus was founded by Schmarda for worms characterised 

 by the possession of a complete circle or ring of setae on each of 

 the setigerous somites. The researches of Perrier and others have 

 shewn that this, as the generic character of these forms, is insuffi- 

 cient. I have not been able to see several of Perrier's papers, but 

 the amended characters of the genus as given by Beddard (1) are 

 as follows : " setae generally arranged in a continuous row round 

 the middle of each segment ; clitellum occupying 2, 3, or 4 seg- 

 ments (14-17). Male generative apertures paired, and situated 

 upon 18th segment of the body, which is always behind the 

 clitellum ; genital papillae occasionally developed in neighbouring 

 segments. Female generative aperture single, and within the 

 clitellum upon the 14th segment. Two pairs of testes, more or 

 less solid and compact, in segments 1 1 and 1 2 ; terminal portion 

 of vas deferens on either side connected with the duct of a large 



(1) Ann. Mag. Nat. Hist. Vol. xm, (5), May 1884, p. 401. 



