42 
latd; aperturd labiis cancellatis ; cancellis transversim stri- 
atis. 
Hab. in insulis Philippinis. 
Shell white, cancellated, with elevated, decussating transverse and 
longitudinal lines ; aperture with the lips cancellated ; cancelli trans- 
versely striated. 
Hab. Baszay, island of Samar, 6 fathoms, coral sand; H. C. 
(Mus. Cuming.) 
Cyclostrema cancellata, Marryat, Trans. Linn. Soc. 1818, vol. xii. 
p- 338. 
v CycLOSTREMA NIVEA, Chemnitz. C. testd orbiculari, nived, pel- 
lucida ; spird depressd, anfractibus transversim costellatis, cos- 
tellis regularibus, superis distantioribus ; interstitiis leviter con- 
cavis ; suturis profundis subcanaliculatis ; labro simplict ; um- 
bilico peramplo. 
Hab. in maribus Occidentalibus. 
Shell orbicular, snowy white, transparent ; spire depressed, whorls 
transversely ribbed, ribs regular, the upper fewer and wider apart ; 
interstices slightly concave; sutures deep, slightly channeled ; lip 
simple ; umbilicus very large. 
Hab. Seas of India. (Mus. Cuming.) 
Turbo niveus, Chemnitz, Conch. Cab. vol. x. pl. 165. f. 1587 and 
1588. Delphinula nivea, Reeve. Delphinula levis, Kiener. 
CycLosTREMA Rerviana, Hinds. C. testd orbiculari, subdis- 
coided, muticd ; spird depressiusculd, anfractibus convexis, lon- 
gitudinaliter carinulatis, carinulis numerosis, superis distanti- 
oribus ; interstitiis liris obliquis corrugato-clathratis ; labro 
simplici ; umbilico peramplo. 
Hab. 2 
Shell orbicular, somewhat discoid ; spire rather depressed, longi- 
tudinally keeled, keels numerous, upper ones wider apart ; interstices 
latticed in a wrinkled manner, with oblique ridges ; inner lip simple ; 
umbilicus very large. 
Hab. Straits of Malacca, 17 fathoms. (Mus. Cuming.) 
Delphinula Reeviana, Hinds, Proc. Zool. Soc. 1843. 
CycLostTREMA Cosisensts, Reeve. C. testd turbinatd, minutd, 
anfractibus convexis, carinulis transversis et longitudinalibus 
equidistantibus regulariter clathratis; umbilico mediocri; labro 
simplici. 
Hab. Cobija, Peru. 
Shell turbinated, very small ; whorls convex, regularly latticed, with 
equidistant, transverse and longitudinal ribs; umbilicus moderate ; 
lips simple. 
Hab. Port of Cobija, Peru, under stones in rocky places, low water ; 
H.C. (Mus. Cuming.) 
Delphinula Cobijensis, Reeve, Proe. Zool. Soc. 1843. 
45) ® CycCLOSTREMA spiRULA, Adams. C. testd orbiculari, discoided, 
evolutd; spird depresso-concavd, anfractibus rotundatis, primis 
