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Show 1867.J MR. G. F. ANGAS ON AUSTRALIAN MOLLUSCA. 191 From Coodgee Bay, in shell-sand. A white, shining, semipellucid, depressed little shell, with the aperture entire in front, thus wanting the notch of the typical Neritulee. Length 2 lines. 29. *CYLLENE LACTEA. Cyllene lactea, Ad. & Ang. P. Z. S. 1863, p. 422. A milk-white species covered with a thin epidermis, dredged in deep water at Port Stephen. Length 6 lines. Subfam. PURPURIN^E. 30. PURPURA (POLYTROPA) SUCCINCTA. Buccinum succinctum, Mart. Univ. Conch, ii. pl. 45. Purpura rugosa, Lam. A fine large species, of a yellowish-white colour, very prominently transversely ribbed throughout. Common on rocks at low water generally. Length 2\ inches. 31. *PURPURA (STRAMONITA) NEGLECTA. Purpura (Stramonita) neglecta, Angas, P. Z. S. 1867, p. 110. A small ribbed species, with the interstices muricately scaled ; purple within. Under stones outside Port Jackson Heads. Length 9 lines. 32. PURPURA (CRONIA) AMYGDALA. Purpura amygdala, Kiener, Icon. Coq. Viv. pl. 10. f. 26. Buccinum amygdala, Reeve, Conch. Icon. pl. 8. sp. 60. The columella and aperture are of an orange cream-colour, and the whorls squamately sculptured and banded with brown fillets. Although frequent at Moreton Bay, this species is rare in Port Jackson, a few examples only having been found. Length 10 lines. Specimens from the north measure 1| inch. 33. PENTADACTYLUS (SISTRUM) CHAIDEUS. Purpura chaidea, Duclos, Ann. Scien. Nat. 1832. P. nassoides, Quoy et Gaim. A white globular species, somewhat resembling a Nassa, and inhabiting New Caledonia, of which I obtained three living specimens amongst the rocks at Nelson's Bay, near Port Jackson. Length 9 lines. 34. PENTADACTYLUS (SISTRUM) TUBERCULATUS. Purpura tuberculata, De Blainv. Nouv. Ann. du Mus. pl. 9. f. 3. P. marginalba, De Blainv. P. granulata, Duclos. Ricinula tuberculata, Reeve, Conch. Icon. pl. 2. f. 11. A very common species in Port Jackson, and widely distributed throughout the entire Indo-Pacific province. Easily known by its |