



_L 



Centimeters 



Figure 232. — Diagram of the arterial system of C. rirginica. A — right auricle; ad. a. — adductor muscle artery; an. — 

 anus; ant.ao. — anterior aorta; cl.ch. — cloacal chamber; co.p.a. — common pallial artery; cph.a. — cephalic artery; 

 cr.p.a. — circumpallial artery; g. — gills; g.a. — gastric arteries; l.a. — labial palp artery; l.p. — labial palps; m. — mantle; 

 post.ao. — posterior aorta; r. — rectum; r.a. — rectal artery; r.g.a. — reno-gonadial artery; vise. a. — visceral artery. For 

 the sake of clarity profuse ramifications of the vessels are not shown. 



CIRCULATORY SYSTEM AND BLOOD 



255 



