. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 11 ordinary ink, or carmine fluid, and to repeat the injections as the dissections progressed. There are, as shown in Allen's figure, four afferent branchial and an afferent hyoidean artery on either side, all arising separately and independently from the truncus arteriosus, and there is no indication of either dorsal or ventral commissural branches, such as are found in Chlamydoselachus (Allis, 1911), connecting any of these arteries. The afferent hyoidean arteries arise from the extreme anterior end of the truncus arteriosu
. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 11 ordinary ink, or carmine fluid, and to repeat the injections as the dissections progressed. There are, as shown in Allen's figure, four afferent branchial and an afferent hyoidean artery on either side, all arising separately and independently from the truncus arteriosus, and there is no indication of either dorsal or ventral commissural branches, such as are found in Chlamydoselachus (Allis, 1911), connecting any of these arteries. The afferent hyoidean arteries arise from the extreme anterior end of the truncus arteriosus, and there is no indication whatever of an afferent mandibular prolongation of the truncus. The afferent hyoidean artery, on either side, runs upward along, or near, the sei d?. Fig. 1. The branchial, pseudobranchial and carotid arteries in Chimaera colliei; the dorsal aorta swung upward and the truncus arteriosus downward so as to bring the vessels all into the same place. Index letters (Fig. 1 and 2). aa I. II. etc. afferent arteries in the 1st, 2nd, etc. branchial arches; a. cer anterior cerebral artery; ahy afferent hyoidean artery; amd afferent mandibular artery; apsb afferent pseudobranchial artery; cc common carotid; cor coronary artery; da dorsal aorta; ea I, II. etc. efferent arteries in the 1st, 2nd, etc. branchial arches; ec external carotid; ehy efferent hyoidean artery; elh external lateral hypobranchial artery; epsb efferent pseudobranchial artery; hyp hypobranchial artery; ic internal carotid; Ida lateral dorsal aorta; om ophthalmica magna artery; s. ahy secondary afferent hyoidean artery; scl subclavian artery; ta truncus arteriosus. postero-ventral (external) edge of the ceratohyal, and when it reaches the cartilaginous rays that are attached to the hind edge of the dorsal portion of that element it passes external (anterior) to them and then. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readab
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