| OCR Text |
Show 1867.] MR. G. F. ANGAS ON AUSTRALIAN MOLLUSCA. 211 Fam. VERMETIDJS. 152. THYLACODES DECUSSATUS. V. decussatus, Gmel. A grotesquely twisted tubular shell, longitudinally squamately ridged, adhering by the under surface of the spire to blocks of sandstone and rocks at low water. Length 2 or 3 inches, diameter of tube 6 lines. 153. BIVONIA QUOYI. Bivonia quoyi, A. Ad. Spirally tubular, smooth, agglomerate, and not attached to stones. Dredged in Port Jackson. Length 2 inches, diameter of tube 3 lines. Fam. CALYPTRID^E. 154. TROCHITA (HALIOTIDEA) CALYPTREEFORMIS. Trochus calyptreeformis, Lam. Anim. sans Vert. vii. p. 627. Calyptreea lamarcki, Desh. Crepidula tomentosa, Quoy et Gaim. Attached to stones at low water in Port Jackson. Breadth 9 lines. 155. GALERUS PELLUCIDUS. Trochita pellucida, Reeve, Conch. Icon. pl. 1. f. 2. A small, white, semitransparent species, not unlike the European G. chinensis, or " Chinaman's hat." Adhering to dead shells in deep water in Port Jackson. Breadth 4 lines. 156. CRYPTA (CREPIPATELLA) ACULEATA. Crypta aculeata, Lam. Anim. sans Vert. vii. p. 642. Patella aculeata, Gmel. Covered on the outside with rows of prickly scales, dark inside. Found attached to rocks at low water in Port Jackson. Length 1 inch. 157. CRYPTA (IANACHUS) UNGUIFORMIS. Crepidula unguiformis, Lam.; Brod. Trans. Zool. Soc. i. p. 204, pl. xxix. f. 4. Adhering to dead shells. Whitish, smooth, flat, and very variable in form. This species is almost worldwide. Length 1 inch 3 lines. Fam. CAPULIDEE. 158. COCHLOLEPAS ANTIQUATA. Patella antiquata, Linn. Pileopsis mitrula, Lam. 1 Hipponyx foliacea, Quoy, Voy. de l'Astrol. pl. 72. f. 41-45. Shell flatly conical, with a foliaceous epidermis. Under rocks and stones in Port Jackson. Breadth 7 lines. |
