EXPLANATION OF THE PLATES. 
553 
as will be rendered pretty evident upon inspecting the tooth 6, 
where, owing to the comparatively small development of the cusp 
d, the crown approaches to the triangular form which is so charac¬ 
teristic of figs. 4 and 5. The part of the tooth which 1 have 
called the band, is most developed in the fore part of the molar, 
fig. 11, and is apparent in the teeth figured, where marked *. 
that these small cusps are approximated to the principal cusps in the second 
true molar of Dasyurus (or at least are much less widely separated than in the 
third molar), and that in the first molar the cusps 3 and b, are still more 
approximated, and the cusps 2 and a are partially joined, I have since thought 
it more probable that in Thylacinus the small and principal cusps are united. 
END OF VOL. I 
Wilson and Ogilvy, 57, Skinner Street, Snowhill, London. 
