204 . DESCRIPTION'S OF AUSTRALIAT^ MICRO -LEPIDOPTERA, plentiful. At the mouth of the Endeavour Eiver the coast was strewn with dead and broken tests of the species. Using a very small dredge at about ten fathoms one can obtain hundreds or thousands of specimens anywhere between Cape Grenville and Port Denison. Maretla plamdata, Leske, is also a very com^mon species and is found on a sandy bottom at moderate depths from about five fathoms. We know very little about the Spatangidce, but their habits might be easily studied in Sydney with even a small aquarium. The peculiar smooth actinal plastron points no doubt to some distinct habits and modes of getting its food, which would be very interesting to study. Though it is not at all rare on the east coast, yet because the test is very brittle it is never found on the beach. Any s])ecimens that are washed up must be broken to pieces. This shows how notliing but the dredge will reveal what urchins we have in Australia. Eclivnocardium &mfrale, Gray. This species is abundant on sandy shores, from Port Jackson to East Tasmania. Like all the clypeastroid urchins it seems to feed on Foraminifera. Breijnia aicstralasice, Gray, is extremely abundant in the sandy shallow bays about Port Denison. Rhjnolrmus aiyicalis, nohis. Small specimens of this urchin have lately been found in Port Jackson at sixteen fathoms. They were not one-fourth the size of the type specimen obtained by me from Moreton Bay. Bescriptioxs of Australian Micro-Lepidoptera. By E. Meyrick, B.A. IV. TINEINA, (Continued). The present instalment treats of the families Ghjpliiptcryg'ulcn and Erechthiad(B, giving descriptions of fifty-three species, of which
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