46 
Transactions of the 
his figure the well-marked longitudinal muscular bands are not 
shown. Specimen in cabinet of R. M. S. 
MuRicnm Triton (?), No. 35. — Long, mottled, spiral shell. 
Varices small, irregular. Hab., seaweed below low-water mark. 
Very rare; only found one or two specimens alive; dead shells 
common. Operculum horny. 
Palate, 3.1.3. Median reflexed, denticulated with large central 
tooth. 1st lateral, with a slight spinous process above the tooth. 
Specimen in cabinet of R. M. S. 
Fasciolaria {monilia?), No. 11 — Animal bright red in colour. 
Operculum horny, claw-shaped, but large enough to close aperture. 
Hab., below low- water mark. Scarce. 
Palate, 1.1.1. The median having three denticles, the bases 
of which are finely furrowed. Laterals 11 denticles. It is a 
remarkably clear and regular palate. 
Buccineam:. Nassa (?), No. 9. — This is the common dog 
whelk, occurring plentifully between tide marks, and is a voracious 
feeder on dead and living molluscs, crabs, &c. A perfectly-formed 
shell is rare, the apex appearing to suffer from abrasion. It is 
variously marked. Some are reticulated or chequered ; in others 
the dark markings form lines, and occasionally all trace of marking 
is lost. Operculum horny, obovate apex at end. 
Palate, 1.1.1. Median, three denticles of equal length ; laterals 
with basal tooth. Specimen in cabinet of R. M. S. 
Purpura, No. 17, probably P. textilosa. — Hab., near low water. 
in. It is a sinistral shell, and has longitudinal ridges. I trust I am not asking too 
much of you in this matter ; my anxiety to place the palates, &c., before the 
readers of the Journal in as complete a form as possible must be my excuse. 
I enclose -with the shells a small packet for Mr. Mclntire, which please be 
kind enough to hand to him. 
I am, Sir, 
Your most obedient servant, 
Chas. M. Maplestone. 
Walter W. Reeves, Esq., Assistant-Secretary , 
Royal Microscopical Society, King's College, London. 
Mr. Henry Woodward has seen the shells, No. 48, and kindly written the fol- 
lowing note about them. 
Walter W. Reeves. 
British Museum, July 5, 1872. 
Dear Sir, — I have now the pleasure to return you the little shells. I only 
this very morning found leisure to compare them, having been very much pressed 
for time. They are the young of a fresh-water shell named Physa alicice , var. 
Lovell Reeve. In our case the adult attain to nearly four times the size. 
Yours very truly, 
Henry Woodward. 
Walter W. Reeves, Esq. 
