IMMANES — SAURURA:. 
Aves G1 
Dinornis sp. ?, its remains in the Mackenzie Country and other 
localities ; F. Chapman, Tr. N. Z. Inst. xvii. pp. 172-178 [1884]. D. oweni , 
sp. n., Whangarei, N. Z.; J. v. Haast, P. Z. S. 1885, p. 482. 
RHEiE. 
Riieida:. 
Rhea darwini, eggs and nesting habits ; R. macrorhyncha , supposed 
eggs, their identification doubtful ; P. L. Sclater [Gr. Claraz], P. Z. S. 
1885, pp. 524-327. R. darwini differs considerably from R. americana 
and R. macrorhyncha , whilst the latter two species offer apparently few 
important characters for separation. However, no matter if the number 
of the neck vertebrae of R. macrorhyncha (16 instead of 15) be a 
constant character or not, the differences in the proportions of the skulls 
afford an anatomical distinction just as good as those which induce us to 
consider R. darwini a so-called good species. The relative differences 
of the length of wings and legs to one another, as well as to those of the 
other species, lead to some interesting conclusions, and the additional 
cervical vertebra in the one species is discussed from a broad morpho¬ 
logical point of view ; H. Gadow, P. Z. S. 1885, pp. 308-322. 
STRUTHIQNES. 
Struthionida. 
Struthio , sub voce “ Ostrich”; A. Newton, Encycl. Brit. ed. 9, xviii. fig. : 
ostrich farm at Zeralda (Algeria); A. Laloue, Bull. Soc. Acclim. 1885, 
pp. 665-667. S. camelus , S. molybdophanes, S. australis, the microscopic 
texture of the eggs as a mark of distinction ; W. v. Nathusius, J. f. O. 
1885, pp. 165-178, pis. ii. & iii. 
[See Vetter, B.] 
SAURURiE. 
Arcmopteryx. 
Forma incerta*: sedis. 
Gastornis Jdaasseni, sp. n. [fossil], Croydon ; E. T. Newton, P. Z. S. 
1885, pp. 445 & 446. This species exhibits anserine characters in the 
tibio-tarsus. 
