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Show 840 MR. E. A. SMITH ON THE GENUS CHILINA. [Nov. 15, departure from the Cape necessitated the packing of my shell-collection before I had time to record the capture of the living mollusk ; and m y cabinets remaining unopened till a few weeks back, I thought no more of m y discovery. Lately, however, I have become aware of a point in the economy of Coeliaxis layardi that may be of interest to conchologists ; and I therefore communicate this note. In picking out some specimens for exchange with a gentleman in Sydney, I was surprised to find a minute specimen fall from one I held in m y hand. On tapping it gently, eight or ten more fell; and on examining others, I obtained several more. It is thus clear that this curious shell (which resembles a small Megaspira ruschenbergiana) is a viviparous species. The young shells show all the beautiful striae of the parent; and the young animal, showing through the pellucid shell, is of a reddish-buff colour. Noumea, New Caledonia, May 20, 1881. 7. Notes on the Genus Chilina, with a List of the known Species. By EDGAR A. SMITH. [Eeceived August 22, 1881.] The object of the present paper is specially to point out several errors which appear in a monograph by Sowerby in the 'Conchologia Iconica,' written in 1874, and to contradict the statement that many of the figures are taken from specimens in the British Museum. This is most important, as hereafter it might be supposed that the shells in question had been lost or in some way removed from the Museum collection. The figures in the monograph referred to are but copies in many instances of those which appeared thirty years ago in the ' Conchological Illustrations' by the same author. The figures on plate i. which are taken from the old monograph are the following:-fig. la (C. fiuviatilis); fig. 2 6 (C.fiuminea) ; figs. 3 a, 3B (C. major); fig. 4B {C. domBeyana) ; and figs. 5a, 5b {C. roBustior). On plate ii. the following are copies:-fig. 6c {C. ovalis); figs. la, 7B (C. fluctuosa); fig. 8« (C. ampullacea); and figs. 9a, 9B (C. gibbosa). On plate iii., fig. 10 (C. puelcha), fig. 12a, 12B probably {C. tehuelcha), fig. 14 (0. tenuis), and fig. 17 ( C parchappii), are likewise copies. In each instance, with the exception of fig. 14 {C. tenuis), Mr. Sowerby states that the figures are from specimens in the British Museum. This, I am bound to observe, is totally incorrect. Not in a single case is such the fact; for neither the collection of Mr. Cuming nor that of the Museum contain any shells answering to these drawings. The only figures representing shells actually in the Museum are figs. 6 a, 6 B (C. acuminata), fig. 2 c on plate iii. (C fluminea, var.), fig 11 (C patagonica), fig. 13 (C. eleyans), fig. 15 {C. fasciata), and fig. 16 {C. suBcylindrica). Unfortunately I am |