156 ALLEN 



D.Br.L.T.{i)-{i\.). Dorsal branchial lymphatic trunks (nutrient branchial 

 veins ?) i to 4, Lepisosteus. 



D.Br.L.T.[i)-{j^)0. Dorsal branchial trunk openings into the branchial and 

 occipital sinuses, Lepisosteus. 



D.L. T. Dorsal lymphatic trunk. 



D.Per.S. Dorsal pericardial sinus, Lepisosteus. 



D.Per.S.V. Semilunar valves of the dorsal pericardial sinus of Lepi- 

 sosteus opening into the inferior jugular. 



E.Br.A.i^x^-iyi^). Efferent branchial arteries i to 4. 



E.Fil.A. Efferent filament arteries. 



E.F. Tr.A. Efferent filament transverse arteries. 



Enc.A. Encephalic artery. 



Enc.V. Encephalic vein. 



End. Endothelium. 



Ex. Tunica externa (adventitia). 



Exos. Exoskeleton. 



E.A. Facialis artery. 



Fac.M. V. Facialis-mandibularis vein. 



F.C.T. Fibrous connective tissue. 



Fil. Filament. 



Fil.L.N. Filament lymphatic (nutrient venous?) network. 



Fil.L.T. Filament lymphatic trunk (nutrient filament vein.'). 



F.L.T. Facial lymphatic trunk. 



F.L.T.{i). Anterior facial lymphatic trunk. 



F.L.T. O. Facial lymphatic trunk opening into the hyo-opercularis 

 sinus. 



F. V. Facialis vein. 



Gk.M. Glossohaly muscle. 



G.R. Gill rakers. 



G. R.L.N. Gill raker lymphatic (venous.') network. 



G.R.N. Gill raker arterial network. 



Hep.V. Hepatic vein. 



Hyo.A. Hyoidean artery. 



Hyom. Hyomandibular. 



Hyo.O.A. Hyo-opercularis artery. 



Hyo.O.A.{i). Superficial branch of the hyo-opercularis artery. 



Hyo.O.L.T. Hyo-opercularis lymphatic trunk. 



Hyo.O.L.T.{i). Dorsal branch of the hyo-opercularis lymphatic trunk. 



Hyo.O.S. Hyo-opercularis sinus, Lepisosteus. 



Hyo.O. V. Hyo-opercularis vein. 



Hyo.O.V.{\'). Superficial branch of the hyo-opercularis vein. 



LJ. V. Inferior jugular vein. 



Int. Tunica intima. 



Inttn.L.V. Intermuscular or transverse lymphatic vessels. 



I-Per. Visceral or inner layer of the pericardium, 



J- V- Jugular vein. 



Kid. Kidney. 



L. Liver. 



Z,.5r.(i)-(4). Branchial levator muscles i to 4. 



L.Br. V. Branchial levator muscle veins. 



