24- Proceedings of the Roijdl Society of Victoria. 



Spei'uiatbecal i)ores, five ])airs, between vsegiuents 4 and 5, 

 5 and (>, G and 7, 7 and 8, 8 and !J, at the level of tlie inner- 

 most setae. 



Accessory copulatory structures. Three pairs ot elliptical 

 tumid patches in front of the male openings, and three or 

 four behind. One pair placed half on segment 17, and half 

 on segment 18, at the level of tiie interval between the 

 second and third seta on each side. The others placed at 

 the level of the interval between the two inner set<e of each 

 side, and placed respectively half on each of the following 

 segments, 15 and 16, IG and 17, 1.9 and 20, 20 and 21, 21 

 and 22, 22 and 23. Each is marked by a median linear 

 depression. 



Doi'sal pores present, the tir.st between segments 5 and G, 



Alimentary canal. Gizzard in segment 5. No true calci- 

 ferous glands present, but vascular swellings in segments 13, 

 14 and lo. Large intestine in segment 17. 



Circulatory system. Dorsal vessel single. A supra-intes- 

 tinal vessel present in segment.-:, 10-13. The last heart in 

 segment 12. 



Excretory system. Megan ephric. 



Reproductive system. Two pairs of testes in segments 10 

 and 1 I, into which the rosettes open. These segments are 

 filled with mas.ses of sperm, but the.se are not enclosed in 

 sacs. 



Prostates coiled, tubular, oceupving segments 18, 19 and 

 20. 



Sperm sacs, three pairs. Two huge ones attached to the 

 anterior walls of segments 12 and 13, a smaller pair attached 

 to the posterior wall of segment 9. Sac-like in form. 



Ovaries in segment 13, into which the oviducts open. 



SpermathecEe, five pah'S, in segments 5-9. Each consist- 

 ing of a long sac, witli a short diverticulum about one-fifth 

 the length of the former. 



Habitat. Tanjil Ti'ack, near Wood's Point. Warragul. 

 Warburton. 



(20) Periclicda tavjilensis. Length of spirit specimen S-^- 

 inches, breadth | inch. Tlie worm contracts very 

 much in spirits. When alive, it has a dull grey 

 purple colour. 



Prostomium completely dovetailed into the peristomium, 

 and marked by a median groove continuous with one which 

 runs alony; the mid-dor.sal Tine of the bod v. 



