119 



pilis fimbriatum. Long. 1.5 poll., lat. 1 poll. Hab. Hakodadi 

 Bay. W. S. 



Related to O. Blainvillei, but smaller, has no perceptible radi- 

 ating lines on the anterior valve, and is not so vividly colored. 



Dentalium aciculum. T. modica, tenuis, levis, nitida, lactea, 

 admodum arcuata, prope apicem longitudinaliter sulcata, alibi un- 

 dulis annulatis interdum obliquis ornata. Apertura circularis. 

 Long. 30, diam. 3 millim. Hab. Coast of China, 23° 50' N. in 

 sand 25 fathoms. W. S. 



Dentalium hexagondm. T. elongata, attenuata, ossea, arcu- 

 ata, hexagona, angulis obtusis, lateraliter compressis, interspatiis 

 inornatis ; peristomate sexangulari. Long. 55,' diam. 4 millim. 

 Hab. Hong Kong, in shelly mud. 



Dentalium buccinulum. T. modica, lactea prope apicem 

 rubiginosa, admodum arcuatum, longitudinaliter sulcis ad 30 ara- 

 ta, versus aperturam evanescentibus, ubi lucida. Long. 30 mill, 

 diam. 3 millim. Hab. Kagosima. W. S. 



Most nearly allied to D. curtam, but is more deeply grooved. 



Dentalium intercalatum. T. parva, albida, acuta, rapide 

 ampliata, ad apicem sulcis primum sex deinde 12 asqualibus lon- 

 gitudinalibus sulcata. Long. 18, diam. 2-f- millim. Hab. China 

 Seas. W. S. 



Dentalium strigatum. T. bene arcuata, albido-rubescens, 

 sulcis amplis concavis longitudinaliter striatis ad 13 insculpta, dis- 

 sepimentis angustis, obtusis. Long. 18, diam. 3 millim. Hab. 

 False Bay, C. Good Hope. W. S. ' 



Dentalium porcatum. T. modica, cretacea ad apicem plus 

 minusve rubiginosa, bene arcuata, sulcis tenuibus longitud. 12 sen- 

 sim ad 20 auctis arata. Axis 20, diam. 2.5 millim. Hab. Hong 

 Kong Harbor. W. S. 



Dentalium clavatum. T. parva, clavata, polita, tenuis fere 

 hyalina admodum arcuata lateribus oblique undulatis, versus aper- 

 turam valde contracta. Long. 10, diam. 2 millim. , Hab. Hong 

 Kong ; not uncommon. "W. S. 



This would be regarded as a Ditrupa had not Mr. Stimpson 



