281 



ap'ertura magna, canali obliquo, recurvo; labro vix expanso, laqueato; alba, apice flave- 

 Bcente. — Pse. 



Long. 23, diam. 8 mm. 



Cerithium cylindraceum Pease Amer. Journ, of Conchol. V p. 77. 



Hab. Paumotus. 



„Intermediate between C. columna and C. salebrosum.'' 



Cerithium (Bittium) armillatum Carpenteiv 



B. testa C. aspero simili; anfr. nucl. 2 laevibus, tumentibus, vertice declivi, coelato; 

 dein anfr. 9 normalibus planatis, suturis impressis ; adolescente seriebus nodulorum 3 spira- 

 libus extantibua supra costas instructis, costis radiantibus circa 19 fere parallelig, seriebus, 

 a suturis separatis, spiram ascendentibus ; t. adulta costulis spiralibus, interdum 4, inter- 

 calantibus; costulis radiantibus creberrimis; costis suturalibus 2 validis, haud nodosis ; basi 

 efFusa, liris circa 6 ornata; apertura subquadrata; labro labioque tenuibus; columella vix 

 torta, effusa, vix emarginata. — Cpr. 



Long. — ? 



Hab. California. 



„The sculpture resembles Cerithiopsis; but Ihe colunnella is pinched, not nolched." 



Cerithidea albivaricosa A. Adams. 



C. t. turrito-conica, apice acuta, solida, fusco-grisea, linea spirali luteola ad medios 

 anfractus ornata, albivaricosa; anfractibus convexiusculis, varicibus numerosis, distantibus, 

 alternantibus instructis, longitudinaliter costatis, costis nodulosis transversim sulcatis; an- 

 fractu ultimo rotundato, basi spiraliter sulcato; apertura suborbiculari, antice sinuata; labro 

 expanso, margine acuto rubreflexo. 



Long. — ? 



Cerithidea albivaricosa A. Adams Proc. Zool. Soc. 1854 p. 85. 



Pliilippinen. 



This species is easily recognized on account of the conspicuous white varices 

 of the whoris. 



L 26. i9.m. 98. 36 



