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Show 1867.] MR. G. F. ANGAS ON AUSTRALIAN MOLLUSCA. 195 which it may be known by the contraction of the aperture below and the remarkable frill-like epidermis round the sutures. The apex is papillose in all the specimens I have met with. Length 9 lines. 51. COLUMBELLA (MITRELLA) LINCOLNENSIS. Columbella lincolnensis, Reeve, Conch. Icon. pl. 29. f. 184 a, b. A pretty fusiform species, not unlike C. corniculata, Lam., from the Adriatic. Rare, under stones in Port Jackson. The type specimens, as the name imports, are from Port Lincoln in South Australia. Length 6 lines. 52. *COLUMBELLA (MlTRELLA) ALBOMACULATA. Columbella albomaculata, Angas, P. Z. S. 1867, p. 111. A solid fusiform species, mottled with chestnut, and ornamented with clusters of white spots immediately below the sutures. Under stones in Port Jackson. Length 6 lines. 53. COLUMBELLA (MITRELLA) PULLA. Columbella pulla, Gaskoin, P. Z. S. 1851, p. 6; Reeve, Conch. Icon. pl. 19. f. 106. A dark-brown species without markings, found under stones in Port Jackson. (Strange, in Cum. Coll.) Length 7 lines. 54. COLUMBELLA (AMYCLA) DERMESTOIDES. Columbella dermestoides, Kiener. C. tessellata, MS. Mus. Cuming ; Sow. Thesaurus, pl. 39. f. 123. This very beautifully tessellated little species is certainly conspe-cific with the C. dermestoides of Kiener, which species, however, is recorded as coming from the West Indies. I have one or two specimens from South Australia, where, as well as in Port Jackson, it is very rare. My specimens were dredged in 5 fathoms of water at Watson's Bay. Length 5 lines. 55. COLUMBELLA (ANACHIS) LENTIGINOSA. Columbella lentiginosa, Hinds, Moll. Voy. Sulphur. A very small longitudinally ribbed species, of an olive-brown colour, having a slight tendency to a pale band near the sutures. Under stones in Port Jackson, also Moreton Bay. Length 2 lines. 56. *iEsopus FILOSUS. jEsopus fifosus, Angas, P. Z. S. 1867, p. 111. An elegant fusiform shell, belonging to the genus Afsopus of Gould, with the columella arcuate and smooth, and the whorls closely transversely lirate. The colour is either brown or white. Dredged in Port Jackson. Length 6 lines. |