of Plates, 



Abbreviations* 



la Oaudal division of bladder. 



Ib Muscular sac of bladder. 



Sftira'.v;i2itt * 54 



lo Muscular descending tube cf bladder. 



Id Concretions! descending tube of bladder* 



le Ascending tube of bladder 



2a, 2b t 2o, 2d Collecting tubules. 



3m t 3b t So, 3d, 3e, 3f, %, 3h Aooes'*o ry collecting tubulee. 



1-24 Tlaine cells 



ao Aoetabulura. 



i: 1 ' 



ap Anterior papilla. 



bp Birth pore. 



o Oeroaria 



ogb Oerc^ria germ ball 



ona Central nervous 



os Collar 9 pines 



-r- :X : 



dr 



drgb Daug^iter-redia germ bnll 



eo Excretory ooncretiona 



ep Excretory pore 



e Htophagua 



gp Genital pore ^ Pharynx 



i Intestine Tj., Tg t 



ir Intestine of redia u Uteruft 



o Ovary vd Vitelline duct 



08 Oral sucker vg Vitelline gl.?.nd0 



OT Oviduct vn Vitelline 



