DISTRIBUTION OF SUBCUTANEOUS VESSELS IN GANOIDS I55 



Vl. LIST OF ABBREVIATIONS USED IN THE FIGURES. 



A or I' prefixed to an abbreviation signifies anterior or posterior; R or L, 

 right or left ; a series is numbered from cephalad to caudad. 



a. In Fig. i point where injections were made with PoJyodori. 



A.Bl. Air-bladder. 



A.Br.A.{i)-{^). Afferent branchial arteries i to 4. 



Add.M. Adductor mandibulae muscles. 



A.Fil.A. Afferent filament arteries. 



A.P.Tr.A. Afferent filament transverse arteries. 



A.T. Adipose tissue in brain cavity. 



Alt. Auricle. 



B.Art. Bulbus arteriosus. 



Br.A.(^i)-{j[). Branchial arches i to 4. 



Br.A.A. Branchial arch artery. 



Br.A.A.{i). Branchial arch artery for outer surface of arch. 



Br. A. L.N. Branchial arch lymphatic (venous?) network. 



Br.A.L. T. Branchial arch lymphatic trunk, (nutrient branchial vein?) . 



Br.F. Branchial filaments. 



^/-.Z-. 7'.(i)-(4). Branchial lymphatic trunks (nutrient branchial veins?) 



1-4. 



Br.L.T.{'^) and (4). Combined trunk formed by the union of the third and 

 fourth branchial lymphatic vessels. 



Br.L.T.{i'). Ventral fork of the first branchial lymphatic trunk. 



Br.L.T.{\"). Dorsal fork of the first branchial lymphatic trunk. 



Br.L.T.{2'). Ventral fork of the second branchial lymphatic trunk. 



B>-.L.T.{i)0. Opening of branchial lymphatic trunk (i) into the hyo- 



opercularis sinus, Polyodoti. 



Br.L.T.{i)V.O. Opening of the first ventral branchial trunk in the in- 



ferior jugular. 



Br.S. Branchial sinus, Lefisosteus. 



Br.S.O. Branchial sinus opening into the pericardial sinus. 



c. Communications between the 2 forks of the ventral trunk. 

 Car.V. Cardinal vein. 



Cen. Centrum. 



Ceph.L.T. Cephalic lymphatic \.x\xn)Ly Polyodon. 



Ceph. S. Cephalic sinus. 



Cer. Cerebrum. 



CI. Clavicle. 



C.L.T.O. Cephalic trunk opening into hyo-opercularis sinus in 



Polyodoti. 



Cor. A. Coronary artery. 



Cr. Cranial wall. 



Crb. Cerebellum. 



C.T. Connective tissue. 



d. In Fig. 20 capillary from nutrient branchial artery. 

 D.Ao. Dorsal aorta. 



