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Show 90 MR. G. F. ANGAS ON AUSTRALIAN MOLLUSCA. [Jan. 17, Fam. MARGINELLID_B. 17. MARGINELLA (GLABELLA) OCHRACEA, Angas, P. Z. S. 1871, Pl. I. f. 6. A minute triangularly ovate species, of a yellowish colour, with the apex of the spire very obtuse. From shell-sand, coast of New South Wales (Brazier). 18. HYALINA (VOLVARINA) MUSTELINA, Angas, P. Z. S. 1871, Pl. I. f. 5. Elongately ovate, banded with grey and brown, and with the outer lip finely dentate within. Dredged off the " Sow and Pigs," Port Jackson (Brazier). Fam. NATICID_E. 19. NATICA AREOLATA, Recluz, P. Z. S. 1843, p. 206. Painted with finely waved fawn-coloured lines and arrow-headed bands, and sometimes with a row of chestnut spots on a white sutural band, and a second near the base of the last whorl. Dredged at the " Sow and Pigs," Port Jackson. 20. NATICA (LUNATIA) INCEI, Philippi, MS. Mus. Cuming (Brit. Mus.); Reeve, Conch. Icon. Natica, pl. 20. f. 89. Brisbane Water (Brazier). 21. NATICA (NEVERITA) CONICA, Lam. Anim. sans Vert. viii. p. 632 ; Reeve, Conch. Icon. Natica, pl. 12. f. 48. On the sand-spit at Middle Harbour, Port Jackson. This is a very abundant species in South Australia. Fam. SCALID_E. 22. CROSSEA CONCINNA, Angas, P. Z. S. 1867, pl. XLIV. f. 14. The genus Crossea was founded by Mr. Arthur Adams for the reception of two species from Japan. He remarks of these singular and beautiful little shells, " they have perhaps the closest affinity with Cirsotrema (Morch), a genus of Scalidee. They also remind one of Torinia and Conradia. A great peculiarity consists in the canaliculate angular projection at the fore part of the aperture." Dredged by Mr. Brazier near the "Sow and Pigs" reef, in Port Jackson, at a depth of from 2 to 4 fathoms. 23. SCALA (CIRSOTREMA) MORCHI, Angas, P. Z. S. 1871, Pl. I. I. / • Decussated with longitudinal ribs, and more numerous transverse ridges; the former evanescent at the base. Dredged near the "Sow and Pigs" (Brazier). |