387 



BiTTiuM CRATicuLATUM. T. parva, subulata, fusca, plicis 

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

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

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

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

 Inhabits Hong Kong ; laminarian zone. W. S. 



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

 and the sculpture not beaded. 



BiTTiUM GLAREOSUM. T. conica, elevata, turrita, leviuscula, 

 dilute rufa ; anfr. 10-[- planulatis,filis granulosis 4 cinctis et longi- 

 tudinaliter ad 20-plicatis, ultimo varicoso et antice constrictor 

 apertura ovato-rotundata, postice acuta ; labro simplici ; colu- 

 mella, late arcuata. Axis 6 ; lat. 2 millim. Inhabits Port Lloyd, 

 Bonin Is., and Loo Choo Is. W. S. 



BiTTiUM PARCUM. T. parva, ovato-turrita, cinerea ad apicem 

 vitrea, undulis ad 10 antice evanescentibus et fills G (ad anfr. 

 ult. 10-}-), filo minori pleruraque interposito, ornata ; anfr. 7-j- 

 rotundatis, duobus anticis nonconformibus : apertura rotundato- 

 ovata, -g- totius longitudinis ^quans ; labro vix incrassato ; colu- 

 mella, callo copioso induta. Axis 5 ; diam. 2 millim. Inhabits 

 Loo Choo Is. W. S. 



BiTTiUM ALUTACEUM. T. parva, elongato-ovata, acuminata, 

 fusca ; anfr. 8-j- planulatis bene discretis, singulis gemmularum 

 seriebus tribus hie nigris illic cornels instructis, ad anfr. ultimum 

 in liras articulatas (filo interjecto) mutatis : apertura subcircu- 

 laris ; canali brevissimo. Axis 7 ; diam. 3 millim. Inhabits 

 China Seas. W. S. 



Much in the style of O. granarium, but much smaller. The 

 granules are very distinct and well rounded, being separated 

 by longitudinal furrows. 



Cerithiopsis laqueata. T. elongato-conica, rufa ; anfr. 

 13-f- planatis eleganter bicarinatis ; carinis acutissimis, remotis, 

 postica majore, altera ad peripheriam, quinta anteriori ; interstitiis 

 latis tenue clathratis ; basi planata radiatim striolata : apertura 

 quadrata ; labro a carinis 5-crenato. Axis 8 ; diam. 2 millim. 

 Inhabits China Seas. W. S. 



