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Show 340 DR. O. F. VON MOELLENDORFF ON [June 2, his " Aulopoma" loivi is the same as my Cyclotus hungerfordianus. It is decidedly a Cyclotus and belongs to m y group Platgrhaphe (Jahresb. Senckenb. 1890, p. 267 = Cycloti suturales, v. Mart.); how it could have been mistaken for an Aulopoma is hardly to be comprehended. I still think that the publication of a Cyclotus as an Aulopoma does not entitle, the name to priority, besides the description is not sufficiently detailed and lucid. 48. OPISTHOPORUS SOLUTUS, Stol. Opisthoporus solutus, Stoliczka, J. As. Soc. Beng. xii. 1872, p. 266, t. x. figs. 8-10 ; Crosse, J. de Conch, xxvii. 1879, p. 337 ; v. Molldff. 1. c. p. 307; de Morgan, Bull. p. 51. Bukit Pondong (Townsend, Hungerford) ; Mt. Tchora and Lano, Kinta valley (de Morgan). Cyclotus dautzenbergi, de Morgan, 1. c. p. 50, t. iv. fig. 1, from Mt. Tchora near Ipoh, is, according to the figure given, undoubtedly an Opisthoporus, and most probably identical with O. solutus, Stol., which de Morgan quotes from the same locality. 49. OPISTHOPORUS PENANGENSIS, Stol. Opisthoporus penangensis, Stoliczka, 1. c. p. 265, t. x. fig. 7; H. Crosse, 1. c. p. 338; de Morgan, Bull. p. 51 ; v. Molldff. 1. c. p. 307. Bukit Pondong (Townsend, Hungerford) ; Perak generally (de Morgan). Cyclophorus lahatensis, de Morgan, Bull. p. 61, t. iv. fig. 7, from the Kinta valley, is apparently a young shell, of 11 millim. diameter. The author compares it to " Cyclophorus" penangensis, Stol., meaning probably Opisthoporus penangensis, which species he had mentioned 10 pages before. 50. RHIOSTOMA JOUSSEAUMI, de Morgan. Rhiostoma jousseaumi, de Morgan, Bull. p. 52, t. iv. fig. 2. Kinta valley. According to the description and the very meagre figure, the classification of this species as a Rhiostojnais not quite beyond doubt. The detached last whorl arid the tube connecting it with the penultimate whorl render it rather probable, but the description of the operculum does not mention the curious cup-shaped formation characteristic of Rhiostoma. 51. PTEROCYCLUS REGELSPERGERI, de Morgan. Cyclophorus regelspergeri, de Morgan, Le Naturaliste, 1885, p. 69. Pterocyclus regelspergeri, de Morgan, Bull. p. 52, t. iv. fig. 3. 1 Spiraculum regelspergeri, v. Molldff. 1. c. p 308. Upper Kinta valley (de Morgan); Larut (coll. Ind. Mus.). De Morgan's mention of a tube behind the aperture is misleading and made me suppose that the species belonged to Spiraculum. It is not a proper tube, but only an enlarged " wing" typical of Pterocyclus. The species is very much like P. albersi, Pet. |
