CYCLOPHORUS. 
Puate XII. 
Species 48. (Fig. a, 6, Mus. Cuming.) 
CycLopuorus Ipyatensis. Cycl. testa modicé umbili- 
catd, orbiculari, albidd, versus apicem livido-purpured, 
castaneo copiosée tincta et undato-strigatd, maculis 
grandibus sagittiformibus infra peripheriam fasciata ; 
anfractibus declivi-convexis, obliqué minute dense 
striatis; aperturd circulari, parviusculd, labro vie 
reflexo. 
Tue Ispyart CycLoPHoRus. 
eated, orbicular, whitish, livid-purple towards the 
apex, copiously stained and wave-streaked with chest- 
nut, banded below the periphery with large arrow- 
headed spots; whorls slopingly convex, obliquely 
minutely densely striated; aperture circular, rather 
small, lip scarcely reflected. 
Cyclostoma Ibyatense, Pfeiffer, Pro. Zool. Soc. 1852, p. 62. 
Cyclophorus Ibyatensis, Pfeiffer. 
Hab. Island of Ibyat, Bashees, Eastern Archipelago. 
Of simple form, unusually copiously painted. 
Species 49. (Fig. a, 6, c, d, Mus. Cuming.) 
CYcLOPHORUS LINGULATUS. Cycl. testd modicé excavato- 
umbilicata, depresso-conoided, 
semipellucidd, castaned, ad suturas et peripheriam albo- 
articulaté, interdum albd, castaneo articulaté ; an- 
fractibus subangustis, jurta suturas planatis, deinde 
rotundatis, levibus vel minute decussatim striatis, ad 
peripheriam carino-funiculatis ; 
tenuiculd, 
apertura circulari, 
labro plano-reflexo, versus umbilicum plerumque lin- 
gulato. 
THE LINGULATE CyYCLOPHoRUs. 
cavately umbilicated, depressly conoid, rather thin, 
sometimes semitransparent, chestnut, articulated with 
white next the sutures, and at the periphery, some- 
times white, articulated with chestnut ; whorls rather 
narrow, flattened next the sutures, then rounded, 
smovuth or minutely decussately striated, encircled 
at the periphery with a cord-like keel; aperture 
circular, lip flatly reflected, generally lingulate to- 
wards the umbilicus. 
Cyclostoma lingulatum, Sowerby, Pro. Zool. Soc, 1843, 
p. 64. 
Cyclophorus lingulatus, Pfeiffer. 
Hab. Philippine Islands ; Cuming. 
Of this interesting species Mr. Cuming collected several 
Shell moderately umbili- | 
Shell moderately ex- | 
varieties in the Philippine Islands in comparative abun- 
dance. One of its most obvious characters is the presence 
of a delicately articulated cord-like keel at the periphery. 
Species 50. (Fig. a, 6, Mus. Cuming.) 
CycLopuorus Borneensts. Cycl. testé subampliter 
umbilicatd, convexo-depressd, tenuiculd, fulod, rufo- 
castaneo sparsim variegatd, juxta suturas versus 
apicem maculatd ; anfractibus superne conveaxo-decli- 
vibus, arcuatim elevato-striatis, ad peripheriam acute 
carinatis ; apertura subcirculari, labro parum reflexo. 
Tue Borneo CyctorHorus. Shell rather largely um- 
bilicated, convexly depressed, rather thin, fulvous, 
sparingly variegated with reddish-chestnut, spotted 
next the sutures towards the apex; whorls convexly 
sloping at the upper part, arcuately elevately striated, 
sharply keeled at the periphery; aperture nearly 
circular, lip but little reflected. 
Cyclostoma Borneense, Metcalfe, Pro. Zool. Soc. 1851, 
j05 (ake 
| Hab. Borneo. 
interdum | 
A light angularly keeled shell, with the spire more de- 
pressly immersed than in any other of the allied forms of 
the genus. 
Species 51. (Fig. a, 6, Mus. Cuming.) 
CycLopyorus puNcratus. Cycl. testd modice umbilicata, 
subgloboso-turbinatd, pallide lutescente, punctis sagitti- 
formibus fuscis obscuré seriatim cinctd, fascia mtensa 
conspicud infra peripheriam ; anfractibus rotundatis, 
oblique dense striatis ; apertura circulari, labro re- 
flexo. 
Tur porrep CycnopHorts. Shell moderately umbili- 
cated, rather globosely turbinated, pale yellow, en- 
circled with rows of faint brown arrow-headed dots, 
with a dark conspicuous band below the periphery ; 
whorls rounded, obliquely densely striated ; aperture 
circular, lip reflected. 
Cyclostoma punctatum, Grateloup, Act. Linn. Soc. Bor- 
deaux, vol. xi. p. 440. pl. 3. f. 10. 
Hab. Ceylon; Grateloup. Philippine Islands ; Cuming. 
There are varieties of this species a little streaked, but 
it is mostly only lightly dotted; the band being equally 
conspicuous. 
July, 1861. 
