163 
Hab. Coast of Japan: Siebald. 
This shell is most nearly allied to the Phorus onustus ; it is very 
solid, sharply pyramidal, and of a singular live pallid appearance. 
There are two or three specimens of it in the collection of H. Cuming, 
Esq. ; and the fragments of shells which are agglutinated indiscrimi- 
nately to the area of the whorls are very much broken in all, though 
the shells to which they are agglutinated are in every respect live 
and perfect. 
Puorus corruecatus. Phor. testd orbiculari, obeso-conicd, albd, 
diagonaliter corrugaid, volutarum peripherid conchyliorum lapi- 
dumque frustis planis ornatd ; facie infern dpallidd, leviter granosd 
et striatd. 
Reeve, Conch. Syst., vol. ii. pl. 214. f.5; Conch. Icon. Phorus, 
pl. 2. f. 6. 
Hab. ? 
The method or disposition of the agglutinated fragments in this 
species is very peculiar and distinct from that in any other. The 
generic property is here confined to the base of the whorls, and the 
fragments which become.attached are all inserted edgewise, ranging 
with great regularity side by side. The specimen above described 
is in the collection of the Rev. Mr, Stainforth. 
Mr. Cuming exhibited to the Meeting the various species of Pho- 
rus referred to in the above communication, and also a series of spe- 
cimens of the genus Pecten, descriptions of which, by G. B. Sow- 
erby, Jun., were read, The species described are figured in Sow- 
erby’s ‘Thesaurus Conchyliorum.’ 
Pecren pictus, Thes. Conch. pl. 20. f. 233. Pect. T. oblique 
vvatd, compressd; auriculis subequalibus, radiatim suleatis, ad 
basim emarginatis, ad margines undulatis ; lateribus striatis ; costis 
13, triangulatis, elevatis, levibus ; interstitiis angustis, bisulcatis, 
crenatis ; colore pallide fulvo, fasciis et punctis et lineis rubris 
variegato ; intis aibo. Long. 0°80; lat. 0°25 poll. 
Hab. Ins. Baie, Ins. Negros, Philippinarum. H. Cuming legit. 
Found in coarse sand at a depth of seven fathoms. 
Equivalve, nearly equilateral, flat, with thirteen nearly triangular 
ribs, slightly flattened at the upper angle ; the ears nearly equal, and 
the general characters of the species indicating some degree of affinity 
with the group containing P. Radula. 
Pecren surersus, Thes. Conch. pl. 12. f.11. Peet. T. subovali, 
obliqud, postice expansd, compressa, crassd ; auriculis parvis, ob- 
tusis ; costis 23, crassis, rotundatis, levibus, interstitiis angystis ; 
colore prope umbones roseo, prope margines pallidé luteo, fasciis 
rubris, preruptis, angulatis variegato. Long. 2°40; lat. 0°65 ;_ 
alt. 2°60 poll. 
Hab. ? Mus. H. Cuming. 
Flat, solid, obliquely oval, with the auricles small, obtuse ; twenty- 
three rounded, smooth, thick ribs; the general colour pale straw, 
