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Show 136 MR. P. CHALMERS MITCHELL ON THE [JAN. 14, 116. DRASTERIA JUDICANS. Ophiusa judicans, Walker, Lep. Het. xv. p. 1831 (1858). Kondowi, Lower Nyika, April 4th, 1895. " Dusky grey moth " (R. ft). 117. HETERABRAXAS ROSEOYITTATA. 2 . Heterabraxas roseovittata, Butler, P. Z. S. 1895, pi. figs. 2, 3. 3. The antenna? have long radiating branches; the black markings on the primaries are better defined than in the female; the secondaries are straw-yellow, with a few scattered black spots, differing entirely on the opposite wings. Expanse 41 millim. Not labelled: body eaten out by caterpillar of Tineid. This is the example referred to in m y previous paper and figured. EXPLANATION OF PLATE VI. Fig. 1. Hyreus virgo, p. 121. 2. Neptis incongrua, p. 112. 3. Mylothris narcissus, var. dentatus, p. 124. 4. „ crawshayi, p. 124. 5, 6. Teracolus infumatus, p. 128. 7. Heteropterus decipiens, p. 130. 8. Perichares albicornis, p. 132. 9. „ telisignata, p. 133. 10. Melittia cenescens, p. 134. 3. On the Intestinal Tract of Birds. By P. CHALMERS MITCHELL, M.A., F.Z.S. [Eeceived December 13,1895.] The material upon which this paper is based consists almost entirely of birds which have died in the Society's Gardens. The work has been done in the Prosector's laboratory. I have therefore to express m y great indebtedness to the Society and to its Prosector, M r . F. E. Beddard, F.R.S. By his prolonged and beautiful investigations into the structure and disposition of the alimentary canal in birds, Dr. Gadow1 has not only proved the taxonomic value of the intestinal convolutions in birds, but has described the details of structure in a very large number of cases. Dr. Gadow paid particular attention to the number of loops and to their disposition in the abdominal cavity. His descriptions and figures refer chiefly to the intestines as they are seen from the right side of the bird's body when the right abdominal wall has been removed. The descriptions and figures now to follow are based on the method described in m y paper 1 "Versuch einer vergleichenden Anatomie des Verdauungssystemes der VSgel," Jena Zeitschrift, xiii. pp. 92-171; pp. 339-403.-" O n the Taxonomic Value of the Intestinal Convolutions in Birds," P. Z. S. 1889.-Bronn's ' Thierreich,' Vogel, pp. 591-793. |