| OCR Text |
Show 1 9 0 4 .] ANATOMY OF CERTAIN SNAKES. 1 1 5 (text-fig. 21, p. 114) are disposed as follows:-The caudal vein gives off first the right afferent renal; after the cloaca (i. e. in front of that aperture) it gives off two branches to the dorsal parietes and then divides into three veins as in the Anaconda. Shortly after its origin, the anterior abdominal gives rise to the single epigastric vein. The arrangement of veins in this snake is in Text-fig. 22. Certain abdominal veins in Eryx jaculus. B, branches to rectum; cl., branches to cloaca. Other letters as in text-fig. 21. fact precisely as in Eunectes. In Eryx jaculus, on the other hand, there are differences which are illustrated in the accompanying figure (text-fig. 22). The caudal vein apparently divides into two-but I am a little uncertain-and each of these vessels |
