84 
11. CerirHipea (PIRENELLA) BICARINATA, Gray. 
Cerithium bicarinatum, Gray, Fauna of New Zealand, p. 241.— 
Cerithium lutulentum, Kien. Mon. Cerith. pl. 22. f. 3. 
12. CerirH1pEA (PrrENELLA) conrca, Blainville. 
Cerithium conicum, Blainv. Faun. Frane., Moll. p- 158. ne. 5. pl. 6a. 
f. 10.—Cerithium Sardoum, Cantr.; Kien. Mon. Cerith. pl. 22. f. 2. 
13. CeriTHIpEA (PrrENELLA) D1EMENENSIS, Quoy et Gaim. 
Cerithium Diemenense, Quoy et Gaim. Voy. de I’ Astr. iii. p. 128. 
pl. 55. f. 11-13; Kien. Mon. Cerith, pl. 23. f. 1. 
14. CerrrarpEa (Prrenewia) Lareiicrertt, Philippi. 
Cerithium (Potamides) Largillierti, Phil. Zeit. f. Malac. 1848, p. 20. 
15. CeriITHIDEA BALTEATA, A. Adams. C. testa turrito-conica, 
apice truncata, tenui, rufo-fusca, linea spirali, albida ad me- 
dios anfractuum et altera ad suturas, ornata ; anfractibus con- 
vexis, varicibus nullis, costis longitudinalibus, angustis, nume- 
rosis insculptis, transversim subsulcatis, ultimo rotundato, basi 
sulcato ; apertura subquadrata, antice canaliculata ; labro ex- 
panso, margine albo, reflexo, antice producto, auriculato. 
Hab. Island of Ticao, marshy places, salt water. Mus. Cuming. 
This is a handsome shell, of a rich red-brown colour, ornamented 
with two yellowish-white*bands, the hinder one interrupted and less 
distinct. 
16. CerttrHipea stmiuis, A. Adams. C. testa turrito-conica, 
apice obtusa, truncata, solidiuscula, rufescente, albido varie- 
gata; anfractibus planiusculis, varice unico ad anfractum ulti- 
mum, costis permultis, confertis, nodulosis, cingula moniliformt 
ad suturas instructis ; anfractu ultimo rotundato, basi sulcato ; 
apertura suborbiculari, antice canaliculata ; labro expanso, 
extus incrassato, antice producto ac auriculato. 
Hab. Philippine Islands. Mus. Cuming. 
Of a pale fulvous-brown colour, with flat decussated whorls, and a 
whitish moniliform band immediately below the sutures. 
17. CERITHIDEA CRASSILABRUM, A. Adams. C. testa elongato- 
conica, apice cornea, vix truncata, solida, cinerea; anfractibus 
convexis, varicibus nullis, ad suturas cingula filiformi instruc- 
tis, costellis albidis, confertis ; anfractu ultimo rotundato, bast 
suleato; apertura quadrato-orbiculari, basi subeffusa; labro 
expanso, valde incrassato, reflexo, arcuato. 
Hab. Philippine Islands. Mus. Cuming. 
This species is remarkable for the great thickness of the outer lip, 
and the thread-like belt at the sutures ; the outer lip at the fore part 
is marked with two obscure brown spots; in some smaller varieties 
the ribs are more strongly developed, and the interstices between them 
are horn-coloured, and the upper whorls corneous. 
