Zoological Society. AAD 
Altit. 9, diam. 64, altit. aperture 5 lin. 
Hab. ad Floridam (communicated by Say). 
Very nearly allied to L. irrorata, but thinner, more slender, the 
aperture not narrowed, nor the outer lip mottled within. 
10. Lirrorina Mopesta. Lit. testd ovato-oblongd, acutd, tenuius- 
culd, albidd, aut obsolet2 rufo-punctatd, profunde transversim 
sulcatd ; anfractibus convexiusculis, suturd profundd divisis, ul- 
timo haud carinato ; aperturd semiorbiculari, luted vel fusco infu- 
matd; columella fere rectilined, dilatatd, depressd, infuscatd ; 
anfractu ultimo ad columellam eroso. 
Altit. 8, diam. 6, altit. aperturee 5 lin. 
Hab. ad Sitka, Nova Albion (on rocks, half-tide), Mr. Barclay ; 
ad insulam Mauritii, Capt. Caldwell. 
This species has the sculpture of L. aspera, the shape and colour 
of L. Sayi. 
11. Lirrortna 1nTERMEDIA. Lit. testd oblongo-conicd, basi ventri- 
cosd, tenui, varii coloris, lineis impressis circa 8 in anfractu penul- 
timo exaratd, levi; anfractibus convexis, ultimo rotundato haud 
carinato ; aperturd ovatd ; columelld albd vel violaced, foved exa- 
ratd. 
Altit. 10, diam. 74, altit. aperture 53 lin. et minor. 
Hab. Mare Rubrum, ad oram Natal; Swan Point, in Nova Hol- 
landia boreali; Jimamailan, in insula Negrorum; Tahiti; insula Eli- 
sabeth in Oceano Pacifico (Cuming). 
This species is intermediate between L. scabra (Helix scabra, L. 
not auct.) and L. angulifera, Lamk., not Quoy and Gaim. ; it has the 
shape and colouring of the latter, which is easily known by its very 
numerous impressed spiral lines. With L. scabra it agrees in the 
number of the impressed lines, but differs by its smoothness to feel- 
ing and by the absence of the basal keel. This latter character di- 
stinguishes it from L. luteola, Q. et G., a species which, however, I 
have not seen in nature. It is very variable in colouring, and we 
may distinguish principally the following varieties :— 
1. punctata, testd lutescente aut rufescente, lineis transversis fuscis 
irregulariter interruptis punctatd. 
2. articulata, testd interstitiis sulcorum regulariter albido et fusco 
articulatis. (From Swan Point; only 6 lin. high.) 
3. strigata, testd in fundo flavescente strigis latis, irregularibus ni- 
gris ornatd. (From Jimamailan ; only 6 lin. high.) 
12. Lirrorina conica. Lit. testd tenuissimd, oblongd, exacte 
conicd, basi carinatd, confertim et obsolete transversim striatd, 
albidd, unicolore vel fusco pictd; aperturd ovata, perobliqud ; co- 
lumelld basi rectd, excavatd. 
Altit. 10, diam. 73, altit. aperture 6 lin. 
Hab. Insula Java. 
13. Lirrorina tenuis. Lit. testd ovato-oblongd, acutd, tenuissimd, 
tenuissime transversim striatd, carneo-albidd, lineis angulatis rufis 
