AuMraliaii Earthivorvis. 239 



(14) Spencer. — The Anatonn^ of Megascolides aiistralis. Trans. 



Roy. Soc. Vic, vol. i., part i., 1888. 



(15) Spencer. — Preliminary Description of Victorian Earth- 



worms, Part I. Genera Cryptodrilus and Megascolides. 



Proc. Roy. Soe. Vic, 1891, Art. xvii. 

 (IT)) Spencer. — Preliminary Notice of Victorian Earthworms, 



Part II. Genus Perichaeta. Proc. Roy. Soc Vic, 



1892, Art. I. 

 (17) Spencer. — Further Descriptions of Australian Earthworms, 



P.irt I. Proc Roy. Soc Vic, Aug., 1900, vol. xiii. n.s., 



part 1. 



EXPLANATION OF PLATES. 



Fig. 1. — Megascolex dorsalis. Diagram to show relative positions 

 of dorsal and ventral meganephridia, and the 

 segments in which they occur. 



2.— Diagrammatic section of one of same thi-ough funnel, 

 compiled from three consecutive sections to show 

 the large ciliated cells (c) forming the funnel. 



3. — Dorsal meganephridium of same, 



4. — Diagram of posterior segments of the body, with dorsal 

 and ventral meganephridia and the duct (d.c) 

 connecting the two. 



5, — Megascolex fiflderi. Diagram to show number and 

 position of the funnels in one specimen on one 

 side of the body. The body wall is represented as 

 opened out. 



6. — Drawing of same to show nephridia in situ, from 

 posterior end of body. 



7. — Somewhat diagrammatic transverse section through 

 body wall. Shows arrangement of nephridial 

 ducts passing out through the muscles to the 

 exterior, and the connective tissue joining the 

 nephridia. 



8. — Diporochaeta davallia. Drawing of nephridium to 

 show relative positions of the coils, with the 

 pigmented coil (p.c.n.) and the fine intracellular 

 duct (i.d.) opening to the exterior. 



