OCR Text |
Show 118 MR. F. E. BEDDARD ON THE [May 17, structure. The discovery of this prerenal portion of the posterior cardinal in an Ophidian removes another point of dissimilarity between the Ophidia and the Lacertilia. Text-fig. 23. Liver and certain adjacent veins in Eryx conicus. Ao., aorta; ces., oesophageal branches of longitudinally running left posterior cardinal; Int., intercostal branches of the same; L, liver; P.v., portal vein; St., branches to stomach. The Azyyos vein is admittedly a vestige of the posterior cardinal |