BLOOD-VASCULAR SYSTEM OF THE LORICATI 153 
L.Op.M. Levator opercular muscle. 
L.Pal.A. Levator palatine arch. Levator arcus palatini of Vetter. 
L.Pal.A.A. Levator of palatine arch artery. 
L.P.Gas.A. Left posterior gastric artery. 
L.P.Gas.V. Left posterior gastric vein. 
WaPorevi- Left portal vein. 
[es Speke Left spermatic artery. In Sedastodes. 
L.Sper.V. Left spermatic vein. In Sebastodes and Scorpentchthys. 
L.Ven.V. Left ventral vein. 
L.V.Fin.A. Left ventral fin artery. 
Weavekine vis Left ventral fin vein. 
Man. Mandible (Dentary, articular, and angular bones). 
Man.A. Mandibular artery. 
Man.V. Mandibular vein. 
Max. Maxilla. 
Max.A.(). Anterior or maxillary artery. 
Max.A. 2). Posterior maxillary artery. 
Max.V. Maxillary vein. 
Me.A. Mesencephalic artery. 
Mes.A. Mesenteric artery. 
Me.V. Mesencephalic vein’ 
M.Lat.A. Median lateral arteries. 
M. Lat.V. Median lateral veins. 
My. Myelon, myel, or spinal cord. 
My.A. Myelonal artery. 
My.V. Myelonal vein. 
N.Br.A. Nutrient branchial arteries. 
INEBEA Vi Nutrient branchial veins. 
Neu.A. Neural arteries. 
Neu.L.V. Neural lymphatic vessels. 
Neu.V. Neural veins. 
N.Fil.A. * Nutrient branchial filament artery. 
N.Fil.V. Nutrient branchial filament vein. 
N-S. Nasal sac. 
INAS 14 Neural spines. 
N.S.A. Nasal sac arteries. 
N.S. V.q- Anterior nasal sac vein. 
N.S.V.(2)- Posterior nasal sac vein. 
Obl. Oblongata or medulla oblongata. 
ObLYV. Oblongata vein. 
Oc:Cl.V. Occipito-clavicularis muscle. 
O.D.M. Obliqui dorsales muscles. 
Oes. Oesophagus. 
Olf.L. Olfactory lobes or bulbs. 
O.N.A., Orbito-nasal artery. 
O.N.V. Orbito-nasal vein. 
Op.A. Opercular artery. 
Oph.A. Ophthalmic artery. 
Oph.V. Ophthalmic vein. 
