177 
of Pyramidella auris-cati, Chemn., preserved in spirits, in the Cu- 
mingian Collection. 
The Pyramidelle, according to our observations, conceal them- 
selves, like the Olive, under small heaps, which they raise ; and they 
may be traced by the trails they leave behind them in the sand. 
Pyram. corrugata, Lam., belongs to this genus, but I am un- 
acquainted with the species. 
1. PyRAMIDELLA AURIS-CATI, Chemnitz. 
Voluta auris-cati, Chemn. Conch.—Pyram. plicata, Lam.; Reeve, 
Conch. Syst. pl. 207. f. 5, 6.—Voluta spiralis, Rumph. ; Wood.— 
Pyram. punctata, Wagner.—Pyram. maculosa, Lam.; Sow. Gen. f.3. 
7 
2. PyRAMIDELLA GLANS, Reeve. 
Pyramidella glans, Reeve, Proc. Zool. Soc. 1842; Conch. Syst. 
pl. 207. f. 1. 
3. PyrRAMIDELLA MAGNIFICA, Adams & Reeve. 
Pyramidella magnifica, Adams & Reeve, Zool. Voy. Samarang, 
Moll. pl. 10. f. 1. 
4. PyRAMIDELLA miTRALIs, A. Adams. P. testa elongato-pyra- 
midali, albida, rufo-fusco variegata, anfractibus octo, convexius- 
culis, longitudinaliter costatis, costis prominentibus, subdistanti- 
bus, interstitiis transversim liratis ; apertura obliqua, semiovata, 
antice subcanaliculata, columella plicis tribus, postica magna, 
transversa, instructa. 
Hab. St. Estevan, North Ilocos, Isle of Luzon, sand, low water. 
Mus. Cuming. 
An elegant, elongated, mitriform species, with prominent longitu- 
dinal ribs. 
5. PyRAMIDELLA PROPINQUA, A. Adams. P. testa ovato-pyra- 
midali, spira acuminata, submucronata, albida, luteo-fusco varie- 
gata, anfractibus conveviusculis, longitudinaliter plicalis, plicis 
prominentibus, distantibus, interstitiis liris transversis ornatis, 
anfractu ultimo dorso alveolato ; apertura semiovata, antice pro- 
ducta, subcanaliculata; columella plicis tribus instructa ; labro 
antice subdilatato. 
Hab. Reetea, Society Islands, on the reefs. Mus. Cuming. 
Somewhat resembling P. auris-cati, but differing in the mucronate 
spire and form of the whorls. 
6. PyRAMIDELLA suBuLATA, A. Adams. (Pl. XX. fig. 6.) P. 
testa subulato-pyramidali, umbilicata, vertice mucronato, laevi- 
gato, pellucido, albida, subnitida, anfractibus planiusculis, longi- 
tudinaliter costatis, costis levibus, subobliquis, crassis, interstitiis 
levibus, in medio unipunctatis; apertura obliqua, semielliptica, an- 
tice producta, subcanaliculata et eversa; columella in medio plica 
valida instructa. 
Hab. Sarsogon, province of Albay, Luzon, coarse sand, 4 fathoms. 
Mus, Cuming. 
No. CCLIX.—ProceepinGs oF THE ZOOLOGICAL SOCIETY. 
