PLATE III 
? Bispira melania 
Fig. 1. Median longitudinal section through thorax 
Partly diagramatic (hearts are not cut) x 4 
(Esophagus 
Stomach 
“*Hearts’”’ 
Nerve cord 
Blood vessel 
Nephridium 
Abdominal region 
First complete septum 
Coeca 
Nephridium 
“* Hearts’? 
Brain 
= ef oe ie 5 06 mo ae ao f 
Fig. 2. Cross-section in region of intestine x 4 
a Circular muscle 
b Longitudinal muscle 
e Dorsal longitudinal mesentary 
d Blood vascular plexus 
Coil of intestine 
Intestine 
Sete 
Ventral blood vessel 
Ventral groove 
Nerve cord 
Giant cells? 
em Foe Be i gg Hh O 
Chlorogogen? 
