Fig. 4
From: Salmonid fish: model organisms to study cardiovascular morphogenesis in conjoined twins?
a Schematic drawing of the joint circulatory system between Atlantic salmon x Arctic char conjoined twins. b and c Photos taken during the dissection. (1) efferent arteries from the gill arches of the large twin. (2) aorta subclavica connecting the aorta dorsalis of the large twin (4) with the aorta dorsalis of the small twin (5). (3) aorta coeliaca of the large twin. (6) heart of the small twin covered by septum transversum. (7) heart of the large twin lacking septum transversum. (8) liver of the large twin