The elasmobranch fishes (1934) The elasmobranch fishes elasmobranchfish03dani Year: 1934 Fig. 153 Fig. 153. Hypobrancliial arteries, Heptanchus maculatus, dorsal view. (Marie Weldt, orig.) , anterior dorsolateral artery; , anterior lateral artery; , brachial artery; ce., coeliac axis; '^, second and sixth commissural arteries; en., connective; , cora- coid artery; , left coronary artery; , posterior coronary artery; , external ca- rotid; L/ib.,lateral hypobranchial; ,median hypobranchial; mi.,metapterygial artery; pc, pericardial art
The elasmobranch fishes (1934) The elasmobranch fishes elasmobranchfish03dani Year: 1934 Fig. 153 Fig. 153. Hypobrancliial arteries, Heptanchus maculatus, dorsal view. (Marie Weldt, orig.) , anterior dorsolateral artery; , anterior lateral artery; , brachial artery; ce., coeliac axis; '^, second and sixth commissural arteries; en., connective; , cora- coid artery; , left coronary artery; , posterior coronary artery; , external ca- rotid; L/ib.,lateral hypobranchial; ,median hypobranchial; mi.,metapterygial artery; pc, pericardial artery; , posterior dorsolateral artery; , posterior scapular; , subclavian artery; th.^-', anterior and posterior thyroid arteries; I-VI, first and sixth bran- chial clefts. Fig. 154. Epigastric artery (epg.), Heptanchus maculatus, ventral view. (Cecil Rowe,orig.) mJih., median hypobranchial; , right pericardial; VI-VII, sixth and seventh bran- chial clefts. {, fig. 153), arising from each coracoid artery, passes inward to supply the sinus venosus. From the ventral angle of the first efferent-collector loop a posterior thyroid (, fig. 153) is given oi¥ which in general position takes the place of a first commissural. From about the same position or a little more anterior than the posterior thyroid the large external carotid artery' {, figs. 151 and 153) passes forward and the stem then divides, one part passing inward to the sym-
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