Radiological observations on the cardiovascular system in Anguilla anguilla.

Comparatively little work appears to have been done on the circulation in the intact living fish, particularly in the bony fish. This paper describes the circulation in the common eel using angiographic methods. This species is convenient as it can be fairly easily obtained in the autumn and winter, is tolerant of laboratory conditions and can survive for some time out of water. As no general description of the circulation in the eel appeared to exist, it proved necessary, in order to interpret the angiographs obtained in the living animal, to make a number of dissections, of which a general account has been given elsewhere (Mott, 1950).