Zoological Society. 443, 
A paper by Dr. Philippi was then read, containing ‘‘ Descriptions 
of a new species of Trochus, and of eighteen new species of Litiorina, 
in the collection of H. Cuming, Esq.” :— 
Trocuus Cumtnen. Tr. testd late conicd, umbilicatd, acutd, car- 
neo-cinered ; anfractibus conveatusculis, transverse striatis, et serie 
triplici spinularum ornatis ; spinis supremis solidis compressis, 
medianis fornicatis majoribus, infimis fornicatis confertissimis ; 
aperturd suborbiculari, violacescente ; margine umbilict acuto, pro- 
minente. 
Altit. 8, diam. 8, altit. aperture 43 lin. 
Hab. Guimaras, insula Philippinarum. 
This very interesting species was found on rocks at high water- 
mark ; its operculum is orbicular, horny, and consists of 5~6 volutions. 
1. LrrrorinA temniscatA. Lit. testd parvd, ovato-oblongd, nigrd, 
striis transversis et lined triplici, elevatd, moniliformi sculptd ; 
anfractibus planiusculis; basi nodulosd; aperturd spiram non 
equante, nigra, basi albo-fasciatd ; columelld depressd, basi. sub- 
effusd. 
Altit. 44, diam. 3, altit. aperture 23 lin. 
Hab. Cuba? 
2. Lrrrortna AsprRA. Lit. testd oblongd, acutd, crassd, fuscescente, 
lineis nigricantibus longitudinalibus obliquis pictd, ad basin sub- 
angulatd; anfractibus paritm convezxis, liris elevatis transversis 
sculptis ; aperturd ovatd, fuscd, fasciis duabus albidis ; labro intus 
albido, fusco-punctato. 
Altit. 8, diam. 54, altit. aperture 44 lin. 
Hab. Ad oram occidentalem Americe borealis (from Sitka, New 
Albion, found on rocks at low water by Mr. Barclay; from Mexico, 
found by Hegewisch; from Conchagua, province of San Salvador, 
Central America, Cuming). By the character of its aperture, this 
species belongs to the group of L. ziczac, L. zebra (Phasianella pe- 
ruviana, Lamarck), and is easily distinguished from all allied species 
by its sculpture. 
3. Lirrornina Piota. Lit. testd parvd, ovatd, acutd, bast obscure 
angulatd, transversim striatd; fascid ad partem superiorem an- 
Ffractuum, alidque ad basin albis, lineis fuscis longitudinalibus pic- 
tis; aperturd semiorbiculari, fuscd, basi albo-fasciatd ; columelld 
satis compressd fere rectilined. 
Altit. 4, diam. 3, altit. aperture 24 lin. 
Hab. ad insulas Sandwich. : 
Var. 6. Anfractibus supern? angulatis, parte mediand anfractis ul- 
timi albido-marmoratd. 
This species has nearly the shape and size of L. Basteroti (Turbo 
petreus, Turbo cerulescens, etc.), which I believe the true Turbo neri=. 
toides of Linnzus, and the colouring of the interrupted variety of L. 
ziczac. 
4. Lirronina porcata. Lit. testd parvd, ovatd, obtusiusculd, um- 
bilicatd, @ cerulescente-albidd, lineis elevatis distantibus porcatd ; 
2H2 
