BY J. J. FLETCHER. 613 



Dorsal pores commence between xii and xiii, not always visible 

 on the clitellum ; nepliridopores not visible. 



Alimentary canal : the pharynx occupies about the tirst four 

 segments ; the short cesophagus leads to the large gizzard in 

 V ; in segments v and vi are two pairs of conspicuous tufts of 

 tubules which may be salivary glands ; calciferous pouches seem to 

 be absent l)ut in xii and xiii tlie canal is globular and vascular 

 possibly representing calciferous glands ; the large intestine com- 

 mences in XVI 1 1. 



Genitalia : two pairs racemose vesiculse seminales, a pair in each 

 of segments ix and xii ; testes and ciliated rosettes two pairs of 

 each, in x and xi ; two prostates in xviii, each of them a long 

 narrow linear gland compacted into a mass, and proximally 

 narrowing into the rather long S-shaped genital duct ; the vasa 

 deferentia not visible ; lying beside the proximal portion of each 

 genital duct is a pair of minute sacs, each containing a long 

 tapering curved penial seta. The ovaries and oviducts have the 

 usual situation and relation* ; spermathec^e two pairs, in viii and 

 IX, pear-shaped pouches, with a narrow stalk or duct about half 

 as long as the pouch, at the junction with which is a small knob- 

 like rudiment of a caicum. 



Six mesenteries commencing with the one between vn and viii 

 are thicker than the othei's. 



The last pair of hearts is in xii. 



The segmental organs are delicate folded tubules, a pair to each 

 segment, except some of the anterior ones. 



In segment xvii, and also in xx and two or three following seg- 

 ments on either side of the nerve cord is a small white hemis- 

 pherical elevation, in relation with the external coiDulatory papillae. 



Hab. — Warragul, Gippsland, Victoria. 



The worms of this species are remarkable for their slenderness. 

 In appearance at first sight they resemble those of several species 

 of CryptodrUus, or as the setaj are not conspicuous, and accessory 

 copulatory structures are, even Periclueta Coxii. 



The best of my specimens are only just intraclitellian, and no 

 more ; possibly when the girdle is fully developed it may include the 



