BY E. J. GODDARD. 



333 



at intervals passing across partly into the left portion of the 

 lacuna, and vice versa. 



That the pouches represent permanent structures, and not 

 mere temporary dilatations due to the pressure of a large number 



Fig. 5. — Glossiphonia australiensis, sp.n. 



Transverse section passing through the first pair of ovarial pouches. 



Compare (3) fig. 7 and (1) fig.4. (References as in fig. 6). 



of eggs during the seasons of the year, is proved by the regular 

 shape and symmetrical development of the first two pouches; 

 and also by the way in which they lie in the ventral sinus, some- 

 times being cut off from the main portion of that cavity by the 

 dorsi-ventral muscles. 



Male organs. — The testes are arranged in six pairs. 



In their early condition and during a season, as already men- 

 tioned, they are solid spherical organs containing abundant 

 blood-supply. They lie immediately external to the ventral 

 lacuna and imbedded in the body-tissue, and about half-way 

 between the dorsal and ventral surfaces. Later they appear as 

 crescentic hollow chambers containing abundant groups of 

 sperms, the concave side of the testes facing towards the lacuna 

 and crop. 



The first pair lie immediately anterior to the point of origin 

 of the first pair of crop-caeca. The others occur between the 



