[825] Weiss (84), pp. 112, 113, 114.
[826] Zeiller (88), p. 353.
[827] Kidston (94), p. 249.
[828] Grand’Eury (90), p. 216 (expl. plates).
[829] Stur (87), p. 68.
[830] Stur (87), Pl. X.
[831] Artis (25), Pl. II.
[832] Weiss, loc. cit. Pls. V. VI. and X.
[833] Grand’Eury (77), (90).
[834] Vide Stur (75), etc. for remarks on the course of the vascular strands.