Mr. W. Clark on two new species of Testaceous Mollusca. 4:25 
be the Helix serpuloides of Montagu, at present involved in some 
obscurity, but the completely striated condition of the volutions 
forbids this idea. From Skenea divisa, which by some concho- 
logists 1s considered synonymous with the Helix serpuloides ot 
Montagu, it differs in its much more globular form, and in the 
volutions being distinctly striated throughout ; it cannot for a 
moment be confounded with the recently discovered Margarita 
pusilla. As the animal and operculum of this new species have 
not been observed, it may be either a Margarita or an Adeorbis, 
or be referable to the Skenee, or to the so-called Trochus subca- 
rinatus. I prefer to place it, ad interim, with the Skenee, as the 
principal characters of that small group, though artificial, con- 
sist in the aperture being suborbicular, and with an entirety 
scarcely interrupted by the very short and small canal at its up- 
per part ; for these reasons I consider the Margarita pusilla and 
the Trochus subcarinatus to be Skenee or Adeorbes, or whatever 
other appellation may be applied to them. The Trochide have 
an invariable angularity in the aperture, which in them, as well as 
in Margarita, is never entire, and has no trace of a canal. Ido 
not know the Adeorbis; it is I believe a genus of the Trochide ; 
if it partakes at all in the angular form of the aperture of that 
family, it has no connection with the present species. 
The Margarita vulgaris, M. pusilla, Skenea divisa, S. depressa, 
S. bicolor, have light corneous opercula, of three or four lax vo- 
lutions, which have nothing of the aspect of the numerous, com- 
pact and close-set ones of the Trochide. 
I have done myself the honour to attach to this new and ele- 
gant object the name of a lady residing at Budleigh-Salterton, 
Devon, whose services in the various walks of natural history 
have been of great value: her retiring disposition would have 
declined, if she had known it, even this small tribute of consi- 
deration, and mention of qualifications of no ordinary stamp. 
Fusus Branscombi. 
F. testa elongata, pallide lutea, anfractibus octo repente attenuatis ; 
varicibus validis novem striis spiralibus confertis perspicue celata ; 
sutura simplici ; apertura subovalis, in canalem branchialem sub- 
rectam producta, superne vix See animal ignotum ; oper- 
culum? Longitudo , latitudo 4 uncie. 
This species as to novelty rests on the same grounds as the 
Skenea Cutleriana: I am at a loss to liken it to any congeneric 
species. 
I name it Fusus Branscomhi, as a memorial of the thirty years’ 
services of my dredger, Wm. Branscomb, avery honest man, “ ab- 
normis sapiens,” “ ‘of mother wit, and wise without the schools.” 
I am, Gentlemen, your most obedient servant, 
WILLIAM CLARK. 
