Anafonri/ of AusfrdlUiiK Amphibia. 243 



Lyinu; in the coeloiu ventral to the kidney is a flat branchinp^ 

 structure nearly coextensive in length with the te.-tis on either 

 side. It is attached to the niesorchiuni on the outer side of 

 the latter, by connective tissue across which small arteries 

 pass from the Renal Arteries, and small veins to the Renal 

 Veins. In appearance it is somewhat lymphoid, and might be 

 regarded as a rudimentaiy fat-body, this being absent in the 

 specimens examined, but for its position. That frtructure is 

 attached normally to the anterior end of the testis, while this 

 lies between the kidney and the testis for almost the whole 

 extent of the latter. A very rudimentary condition of what is 

 apparently the same structure was >een in one instance in 

 Notaden bennetti, where it is in umch closer relationship to 

 rhe kidney surface. I am unable at this stage to add any 

 fr.rther evidence as to its homologies or function. 



Lininodyiuxsfes dorsalis. 



Here the testes are very similar to tho^e of Hyla aurea, except 

 that occasionally the testis may lie quite anterior to the kidney. 

 The arrangement of the Vasa efferentia, of the sperm ducts in 

 the kidney and their entrance into the Malpighian capsules, are 

 all >imilar to that already described in previous forms. As 

 in Hyla aurea, Pseudophryne australis and Notaden bennetti, I 

 have not been able to find any longitudinal Bidder's canal, the 

 Vasa efferentia apparently going straight into the substance of 

 the kidney. 



Sum inn r\. 



The results of this enquiry may be briefly summed up thusr: — 



1. Nephrostomial openings from the coelom are present in 

 each of the eight species examined — viz., Hylai aurea and H. 

 lesueux'ii ; Pseudophryne australis and Notaden bennetti ; 

 Crinia signifera, Chiroleptes alboguttatus, Heleiporut« pictus and 

 Limnodynastes dorsalis. 



2. There are five main types of nephrostomes and nephros- 

 tomial. tubules. 



3. The first, which never branch, open directly into the main 

 bramches of the Renal Veins. Tlie.se are present in all fornis. 



