194 
embrace the various forms which it takes in the specimens now sub- 
mitted by Mr. Cuming from various localities. 
Mexania prADEMA. MM. testd spinosd, acuminato-ovatd, transver- 
sim lineata, subpapyraced, diaphand, pallio lutescente ; spird sca- 
lariformi, acutd; suturd lineata; anfractibus octo, superné an- 
gulatis, planis supra et infra; angulo spinis instructo; spinis 
magnis, crebris, reguluribus, brevibus, eversis, aliquando decur- 
rentibus ; lineis transversis, minimis, decussatis ; anfractu ultimo 
bullato, ad basim lineato ; aperturd magnd, ovatd ; columelld al- 
bidd, incurvd ; epidermide hispida. 
Hab. Small streams, isle of Guimaras, Philippines. 
Length 1-4, diam. °8 of an inch. 
Remarks.—Differs from M. amarula in the thinness of its sub- 
stance, and regularity and eloseness of its spines, which are all bent 
outwards, at a regular angle. 
Metanta cornuta. WM. testd spinosd, elongato-ovatd, crassd, fus- 
cescente vel viridescente ; spird exsertd, scalariformi, apice trun- 
catd; suturd lineari; anfractibus medio angulatis, superné sub- 
concavis; angulo spinis instructo ; spinis magnis, brevibus,incurvis, 
raris, acutis, basi latissimis, distortis, decurrentibus, antice cana- 
liculatis ; anfractu ultimo magno, ad basim transversim striatulo ; 
aperturd magnd, ovatd; columelld lacted. 
Hab. Madagascar. 
Length 1-5, diam. -9 of an inch. 
Remarks.—The spines are short, stout, and irregularly bent, pre- 
senting the appearance of horns, and distinguishing the shell from 
M. amarula, which it otherwise somewhat resembles. 
Meania AcANTHICA. WM. testd spinosd, ovato-turritd, varicosd, 
transversim lineatd, subtenui, fused ; spird elongata, conicd, sca- 
lariformi; apice truncatd; suturd lineari; anfractibus superne 
angulatis, varicibus distortis ; angulo spinis instructo ; varicibus 
magnis, regularibus, subobliquis, superné in spinis productis ; 
spinis longis, tenuibus, irregularibus, extortis ; lineis transversis, 
crebris, parvis, subalternantibus ; anfractu ultimo parvo, ad 
basim lineato ; aperturd ellipticd, inferne effusd; labro inferne 
producto; columelld parvd, infern? incrassatd. 
Hab. Manilla and isle of Negros, Philippines. 
Length ‘8, diam. °4 of an inch. 
Remarks.—Bears some resemblance to M. scabra, Férussac, and 
M. bellicosa, Hinds. 
MeaniA ZEYLANICA. WM. testd levi, ovatd, crassd, nitidd, albidd 
aut virido-fused ; badio flammulatd, spird brevi, acuminatd, apice 
acutd, aliquando erosd; suturd lineari ; anfractibus quinque, con- 
vevis, ad suturam superiorem impressis, maculis flammulatis aut sa- 
gittatis badiis; anfractu ultimo magno, bullato; basi levi; aperturd 
ovato-rotundd, superné angulatd, inferne rotundatd, intus albidd ; 
columelld magnd, albd, superneé incrassatd, inferné curvatd. 
