of new south wales. 321 39. — Ceritiiidea Kieneri. Cerithium Ke'nnerii, Homb. et Jacq. Voy. au Pole Sud. Moll., text, p. 96. Atlas, pi. 23, fig. 4-5. Cerithium Kieneri, Sowerby, Thes. Conch., vol. 2, p. 886, pi. 186, fig. 272. Ceritiiidea Kieneri, Reeve, Conch. Icon., Cerithidea, pi. 1, sp. 6. Hob. Cape York, North Australia. Found some six feet from the ground, attached by a glutinous matter on the trunks of large Rhizophora. Katow, New Guinea. One specimen found on the beach, dead. 40. PlRENELLA LAYARDI. Cerithidea (Pirenella*) Layardi, A. Adams, Proc. Zool. Soc, Lon., 1854, p. 86. Cerithium Layardi (Pirenella), Sowerby, Thes. Conch., vol. 2, p. 882, pi. 185, fig. 257. Tympanotomus Layardi, Reeve, Conch. Icon., vol. 15, Tympano-tomy, pi. 1, sp. 2a. Hob. Mud Bay, Cape York ; found on sandy mud flats at low water. The Ichthyology of the Chevert Expedition, by Haynes Gibbes Alleyne, M.D., and William Macleay, F.L.S. II. Family Scombrice. 55. echeneis naucrates. Echeneis Semora, Aldrovandi, 3, ch. 22, p. 355. Jonston, Thau-matogr. 1, lib. 1 , cap. 2, art 4, tab. 4, fig. 3, tab. 39, fig. 8. Marcgr. Iter. Bras., p. 180. Gottorff, Kuntskammer, tab. 25, fig. 2. Wil-loughby, p. 119, tab. g. 8, fig. 2. Ray, Syn., p. 71. Ruych. Theatr. Univ. p. 7. tab. 4, fig. 3 ; tab. 39, fig. 8. Seba 3, p. 103, tab. 33, fig. 2. Dutertre, Hist. Gen. des Antilles, 2, p. 299, fig. opp. p. 222. Brown, Hist. Jamaica, p. 443.