oclleetion tubulen from the posterior end towards the oral 

 region ind to determining the exact plane of attachment of 

 the capillaries*. Also the farst thnt tmly a fw flame oella 

 -*re lively to be active at a given time, some rnly during 

 or after the bursting of the body wall, and the fact thau 

 a ceroaria lasted only a few minutes added tc the complexity 

 cf the situation. However, t)i^ -< bundanoe of material greatly 

 offset ther*e difficult ias. In order to wor)^ out this ystem 

 in this cer^aria, one hundred and twenty fmail were examined, 

 of whioh eighty -six 5ontained mature aative oeroariae. From 

 these eighty -six smiilB probably over two thouaane oeroariae 

 were studied before ttm Complete ramif icatione of the 

 tubules -md the pattern could be made out, r i!hiji one ayata* 

 was studied for a period of five conaeoutive wee^s before 

 this pattern wan determined. 



Bin^e the limits of the bl**dd<*r are poorly defined, X 

 shall adopt the following nomenclature. The tubes in the 

 tail I shrill nail the caudal division of the bladder, (la)j 

 the oorcmonly allied bladder 1 hi*ll oall the munoular ao 

 of the bladder (Ib), whioh may or aay not be divided intc 

 two parts as ra*n in figure 47; the two large winding tubes 

 Joining the anterior end of the amsoular sao cf the bladder 

 I sh3.ll designate a the musoular descending tubos of the 

 bladder (!) the divisions of the bladder containing the 

 ooncretiona I will term the oonoretional deeoending tubes 

 cf the bladder (Id); the parts of the bladder attached to 

 the ooncretional deeoendinf,: uubes (Id) and extending back- 

 ward tc the posterior end of the body where each is joined 



