Maor Sour! Vl UNS 2b, KD. 
Right Dorsal Aorta. Bee ee 2k 
Dorsal Groove. 
of pharynx. 
“  Tbude....... 
Abrtad EXLENEUOW, «2 = ffm - = anne nn ery 
Blaodvessw, ...-.- fi 
/ Atrial Fk ension.....-, 
Branch of Aorta 
to Excretory Tubule. ' 
BlOODY SSL, on pean nnn nn ap hc ln 
Lp Reais 
Opening of Faxcretory . fhe... fb LN 
EES aie ai —_ 
y: 
Atrial Lctensiov 
f 
Bloody essel.... BY... .2-.2.-.---.~-sns0000 
F_E.Weiss del 
F Huth, Lith’ Edin® 
