570 
TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
Fig. 44. 
Figs. 45 & 46. Heart bisected in median antero-posterior 
Fig. 
47. 
49, 
66a. 
Amoeboid colourless blood corpuscles. 
plane. Fig. 45 shows dorsal portion from inner 
surface, and entrance of anterior and genital 
aortae; also triangular septum. Fig. 46 
shows ventral portion from inner surface, with 
openings of auricles and abdominal aorta. x 1. 
Heart bisected in median dorso-ventral plane, 
and viewed from cut surface. (a) Left half 
of heart—inner surface, showing triangular 
septum. (6) Right half. x 1. 
Semi-lunar auriculo-ventricular valves, looked 
at from ventricle. x 1. 
Diagram showing relation of inferior intestinal 
arteries, and abdominal aorta, to artery of the 
ink sae. ow. 
Buccal mass from left side, showing distribu- 
tion of left pharyngeal artery and branches. 
ou: 
Sketch showing distribution of left branchial 
artery, and its oviducal branch. x 2. 
Sketch showing polygonal cells of branchial 
gland, and the intercellular blood sinuses. 
Kpithelial and olfactory cells lining the 
olfactory pit. (After Zernoff.) 
Portion of cartilage, showing branching and 
anastomosing processes of cartilage cells. 
Prater VII, 
Figure of venous system, from ventral surface, 
partly diagrammatic, showing principal 
cephalic, and pallial veins, and three venae 
cavae. X 2. 
Large perivisceral blood sinus and its connec- 
tion with the lateral and anterior venae cavae. 
Ventral surface. x 4. Partly diagrammatic. 
Two adjacent arms, showing venous vessels and 
common interbrachial vein. x 4. 
. 
. 
d 
