141 



sculptis ; basi convexo, nitido : apertura circularis. Axis 20 ; 

 diam. 4 millim. Inhabits Kagosima Bay. Very common. W. S. 

 One of the most delicate of species, looking like a young shell ; 

 but the number of specimens and of the whorls would indicate this 

 as the usual aspect of the shell. 



Cerithium lacertinum. T. turrita, fusiformis, tenuis, cine- 

 rea fusco maculata ; anfr. 10 convexiusculis bene discretis, posticis 

 plicatis et filis granulosis 4 ad anfractum ultimum demum sim- 

 plicibus cinctis, minoribus plerumque intervenientibus : apertura 

 semilunaris; labro acuto ; rostro abbreviato. Axis 13; diam. 

 4 millim. Inhabits Sydney Harbor. W. S. 



Exceedingly like C. lima, Brug. It has no varices however, 

 is less slender, and differently colored. It is also like C. grana- 

 rinm, Kiener. 



Cerithium stigmosl'm. T. elongato-conica, albida, granu- 

 lata, granulis fuscescentibus in seriebus tribus dispositis quorum 

 mediana ad anfractus anticos bipartita; anfr. 8-4- convexiusculis, 

 ultimo varicoso : apertura rotundato-ovata ; columella arcuata, 

 callosa ; rostro bievissimo, obliquo. Axis 7 ; diam. 2-f- millim. 

 Inhabits Bonin Is. W. S. 



A minute species with the characters of C. lacteum and C. pa- 

 pillosum. 



Cerithium placidtjji. T. minuta, elongata, acute conica, 

 lactea (apice rufo), crassa; anfr. 11 convexiusculis, filis 0-6 cinc- 

 tis, posticis plicatis etiam granulatis ; sutura impressa : apertura £ 

 totius longitudinis, rotundato-ovata ; rostro bievissimo. Axis 8 ; 

 diam. 2 millim. Inhabits China Seas. W. S. 



Another small species of the same group. 



Bittium craticulatum. T. parva, subulata, fusca, plicis 

 circ. 20 et liris acutis volventibus majoribus 4 supereuntibus alve- 

 olata ; anfr. 10 ad modum convexis, ultimo varice munito et plicis 

 antice privato : apertura parva, rhomboideo-ovata, \ totius longi- 

 tudinis aequans ; rostro brevissimo. Axis 6 ; diam. 2 millim. 

 Inhabits Hong Kong ; la'minarian zone. W. S. 



Similar to B. glareosum, but less slender, the aperture smaller, 

 and the sculpture not beaded. 



