[Introduction]. The collection of Crustacea obtained during the cruise of the Thetis proves to be exceptionally rich in forms either new to science or to the fauna of New South Wales.
Of the forty-five species herein dealt with, twenty are additions to the fauna; nine of which are described as new.
The above remarks apply to the higher Crustacea only; the lower, when thoroughly worked out, will I believe yield a far larger proportion of novelties. Although the Thetis collection shows the coastal waters to be so rich, it probably includes but a small portion of our Crustacean fauna. It must be remembered that the Thetis Trawling Expedition was fitted out to test the deeper waters off the coast for fish alone; all other organisms were considered of secondary importance. Still Mr. Waite on several occasions contrived means to secure representatives of the smaller forms of life, and succeeded in preserving a very large quantity of material which will yield a rich harvest when fully investigated...