. Mollusca ... Fig. .3.—Eadula of Strcptaxis ohtusiis. (After Stoliczka.)] b2 [Fig. 4.—Buccal mass, ganglia, &c. of Sireptaxis obtusa. (After Stoliczka.)] The measurements of Streptaxis are the following :—The lengthand breadth are the diameters of the shell as it rests on the body-whorl ; the height is that of the shell laid on a flat surface at rightangles to the other two. Forms of this genus are common on the hills of Southern India,and several of the species occurring appear to be widely spreadand very variable. The teeth in the peristome vary in numberand position, and e
. Mollusca ... Fig. .3.—Eadula of Strcptaxis ohtusiis. (After Stoliczka.)] b2 [Fig. 4.—Buccal mass, ganglia, &c. of Sireptaxis obtusa. (After Stoliczka.)] The measurements of Streptaxis are the following :—The lengthand breadth are the diameters of the shell as it rests on the body-whorl ; the height is that of the shell laid on a flat surface at rightangles to the other two. Forms of this genus are common on the hills of Southern India,and several of the species occurring appear to be widely spreadand very variable. The teeth in the peristome vary in numberand position, and even the number of the parietal lamellse is notalways constant, whilst important differences may be found attimes in the shape of the shell. I. Peristome edentulous or nearly so (occasionally a smalltubercle inside right margin). A. Penultimate whorl rounded or bluntly ungulate, not Tceeled ;a single parietal lamella. a. Depressedly ovate ; penultimate tvhorl, seen from beneath,extends half its width beyond body-ivhorl. 1. Streptaxis petiti, Gould (Helix-Streptaxia), JSost. Jmir. N.
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