MOLLUSCA. 
125 
Maldani.®.] 
I found this species at Killougb, Lough Strangford, Ireland. 
In Lady Jardine’s cabinet. 
4. Brochus annulatus, pi. LVI, f. 12. 
Brochus annulatus, First Ed., pi. 1, f. 12. 
Shell nearly cylindrical ; base with a short knob ; crossed by 
pretty strong, annular striae, decussated by rather slender, lon- 
gitudinal striae, 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 glahrus, First Ed., pi. 1, f. 3; Dentalium gldbrum, 
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 l^evis, pi. LVI, f. 6. 
Brochus IcBvis, 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. 
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 jnybrm than any other of the British 
2 I 
Crassinse ; as will be seen by comparing C. elliptica, fig. 3, and 
C. compressa, fig. 1,4, 5, pi. XXX VHI, 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. XVHI, fig. 10, of First Edition, and pi. 
XXXVIll. of the present) cannot be Montagu’s Venus sulcata, 
the margin in the former being crenate, in the latter plain.” 
