Maldanije.] MOLLUSCA. 



I found this species at Killougli, Lough Strangford, Ireland. 

 In Lady Jardine's cabinet. 



4. BltOCHUS ANNULATUS, pi. LVI, f. 12. 



Brochus annidatus, First Ed., pi. 1, f. 12. 



Shell nearly cylindrical ; base with a short knob ; crossed by 

 pretty strong, annular strioe, decussated by rather slender, lon- 

 gitudinal stria?, and a wide, longitudinal groove on each side, 

 reaching from the aperture to the base ; aperture surrounded 

 by a thick ring; the third annulation below, which is much 

 stronger than the others. Length nearly a quarter of an inch ; 

 diameter a fifth of its length. 



I found this species in Lough Strangford, Ireland. In Lady 

 Jardine's cabinet. 



5. Brochus glabrus, pi. LVI, f. 3. 

 Brochus glabrus, First Ed., pi. 1, f. 3; Dentalium glabrum, 



Montagu, p. 497. 



Shell snow-white, nearly cylindrical, considerably arcuated, 

 smooth, glossy, nearly of equal diameter throughout ; base 

 rounded. Length not a line ; diameter not a fifth of its 

 length. 



Found in Biddeford Bay, near Barnstable ; on the north 

 coast of Devonshire ; and many other situations in Britain and 

 Ireland. 



6. Brochus i^evis, pi. LVI, f. 6. 

 Brochus (avis, First Ed., pi. 1, f. 6; Dentalium imperfora- 



tum, Walker, Min. Sh., f. 15 ; Adams, Microsc, pi. 14, f. 3 ; 

 Montagu, p. 496. 



Shell white, or ash-coloured, subcylindrical, very slightly 

 arcuated, extremely smooth, and glossy ; base subtruncated, 

 with a small, central protuberance ; aperture orbicular, and a 

 little contracted at the margins. 



Found in sand, from Sandwich and Falmouth Harbour. 



125 



7- Brochus arcuatus, pi. LVI, f. 9. 



Brochus arcuatus, First Ed., pi. 1, f. 9- 



Shell cylindrical, slightly tapering, and greatly arcuated ; 

 bluish-white, extremely glossy. Length nearly an eighth of 

 an inch. 



Found in sand, at Bean Haven, Bantry Bay, Ireland, by 

 General Bingham, and in his cabinet. 



Genus 4. — Cornuoides Brown. 



Shell tubular, cylindrical, abruptly tapering, and slightly con- 

 voluted at the smaller end, which is imperforate. 



1. Cornuoides major, pi. LVI, f. 49. 

 Cornuoides major, First Ed., pi. 1, f. 49; Serpula recta, 



Walker, Min. Sh., pi. 1, f. 14; Fleming, Edin. Ency., VII, pi. 

 205, f. 8. 



Shell smooth ; with three nearly cylindrical volutions, the 

 exterior one abruptly increasing, and prolonged in a lengthened, 

 nearly cylindrical, straight tube, terminating in an orbicular 

 aperture. Length not an eighth of an inch ; diameter about a 

 sixth of its length. 



Found by Mr. Walker, in sand, at Sandwich. 



2. Cornuoides minor, pi. LVI, f. 50. 

 Cornuoides minor, First Ed., pi. 1, f. 50; Serpula recta, 



Walker, pi. 1, f. 12; Fleming, Edin. Ency., pi. 105, f. 9. 



Shell smooth, white, and pellucid ; with a perforated apex, 

 and consisting of two volutions ; interior one very small, the 

 external one abruptly increasing, and prolonged in the form of 

 a lengthened, cylindrical tube, terminating in an orbicular aper- 

 ture. Length not a tenth of an inch ; breadth not a sixth of 

 its length. 



Found by Mr. Walker, in sand, at Sandwich, Kent. 



APPENDIX 



CLASS MOLLUSCA 



After the Appendix was in type, I met with descriptions 

 of several new species which have appeared in a local des- 

 criptive catalogue "of the Molluscous Animals of the Coun- 

 ties of Aberdeen, Kincardine, and Banff, by Professor Macgil- 

 livray." Although I have not implicit faith in the accuracy 

 of that gentleman's conchological observations, arising from a 

 perusal of his work, yet I am unwilling to withhold the notice 

 of species which may turn out to be new. 



In justification of what I have said, I shall simply point out 

 one, among many inaccuracies in the work referred to. The 

 Professor, in describing Crassina compressa, says " this species 

 comes nearest in form to (Astarte) Crassina elliptica ; but has 

 little affinity to Crassina multicostata, which has by several 

 authors been strangely confounded with it." Now, with respect 

 to its form being nearest to C. elliptica, I consider these two 

 species are more dissimilar inform than any other of the British 



Crassinao ; as will be seen by comparing C. elliptica, fig. 3, and 

 C. compressa, fig. 1, 4, 5, pi. XXXVIII, of this work. I care- 

 fully drew and described the original shell of the latter species, 

 from which that accurate observer of Nature, Colonel Montagu, 

 made his description. But afterwards meeting with the fine 

 specimen, formerly the property of Captain Laskey, in the 

 cabinet of the late David Falconer, Esq., of Carlowrie, I sub- 

 stituted it for the drawing I made from the collection of 

 Colonel Montagu, in the British Museum. I am certain of its 

 accuracy, so that the shell which Macgillivray describes cannot 

 possibly be the C. compressa of Montagu. In allusion to this 

 same shell, the Professor "strangely confounds" two shells, and 

 refers to a species which is totally distinct; — he says, "Brown's 

 Crassina sulcata (pi. XVIII, fig. 10, of First Edition, and pi. 

 XXXVIII. of the present) cannot be Montagu's Venus sulcata, 

 the margin in the former being crenate, in the latter plain.'' 



