Professor Parker, in his recent memoir,[32] proposes three Sub-families, _Dinornithinae_, _Anomalopteryginae_, and _Emeinae_; _Megalapteryx_, which he omits, possibly representing a fourth. The first of these contains only one genus, _Dinornis_, with wide convex sternum, comparatively slender limbs, broad skull, and long, wide, deflected beak; the height of _D. maximus_, the largest of the whole group, being estimated at about twelve feet. The second Sub-family comprises three genera, _Pachyornis_, _Mesopteryx_, and _Anomalopteryx_, forms of small or moderate height and varying bulk, with less broad skulls and pointed beaks, the sternum ranging from long and narrow to wide and flat. The third possesses a single genus, _Emeus_, in which the limbs are heavy, the strongly-built skull is narrow, and the beak short and broad. _Pachyornis elephantopus_ has extraordinarily stout, short legs, while _Anomalopteryx parva_, perhaps the smallest Moa known, is said to have been about the size of a turkey. The validity of some genera and species is, however, questionable. Most writers think that the female was larger than the male. Mr. De Vis has described a fossil femur from Queensland as _D. queenslandiae_,[33] but it may belong to the Dromaeidae. According to native testimony the habits were sluggish, but the birds were dangerous to approach; they lived in pairs and fed upon green shoots and roots of ferns, making a nest of a pile {43}of grass and leaves. We are told that the eggs found with the remains were dark green, light green, or yellowish, but the last colour at least probably refers to faded specimens. VI. AEPYORNITHES.