326 



BucciNUM RoDGERSi. T. ovato-lanceolata, solidula, luteo- 

 cinerea crusta cretacea sub epidermide tenuissima induta, striis 

 exilissimis cincta ; anfr. 8 tumidulis spiram elongatam nunc un- 

 dulatam nunc sequam efformantibus, ultimo trientes duas long, 

 metiente et in rostram satis productam sensim contracto. Aper- 

 tura ovata dimidiam long, testse baud sequans, labro evaso, postice 

 sinuato ; columella callo bene induta ; fauce flavida vel livida. 

 Long. 55 ; diam. 25 millim. Inhabits Arikamcheche Island, 

 Behring's Straits. W. S. Common in 20-30 fathoms, muddy 

 gravel, Arctic Ocean, north of Behring's Straits. Capt. Rodgers. 



Like B. undatum the varieties are very widely contrasted as 

 to the undulation of the surface, and but for the uniformly 

 slender growth and elongated beak might possibly have been 

 brought under that species. 



Neptunea (s. g. Sipho) terebralis. T. elongata, ovato- 

 fusiformis, rufo-cornea, exteme cretacea longitudinaliter ordinatim 

 striata, costis et fossis sub^equalibus (anfr. spirse ad 8) cincta ; 

 anfr. 7-j- rotundatis superne tabulatis, ultimo trientem long, testae 

 adaequante. Apertura pyriformis, rostro modico, labro arcuato, 

 intus denticulis submarginalibus instructo et strigis rufis costis 

 respondentibus ornato. Axis 60 milUm. ; diam. 25 millim. In- 

 habits Arctic Ocean. 



In general form, like N. Icelandiea excepting as to the angu- 

 larity of the posterior part of the whorls, but clearly distinguished 

 by the exterior ribs and grooves. The lip is broken, but there is 

 a specimen from Spitzbergen, in good condition, in Mr. Cum- 

 ing's collection, from which I have taken the character of the lip. 



Neptunea arata. T. parva, ovato-fusiformis, solidula, rufo- 

 cinerascens, striis profundis incisa et striis increment! concinne 

 clathrata ; anfr. 5-|- ventricosis ad suturam declivibus, undulatis, 

 ultimo subvaricoso ; sutura exili. Apertura pyriformis, dimid- 

 iam long, testae adaequans, labro acuto, serrulato, intus denticulato ; 

 columella subperforata, callo rufo induta. Axis 23 milHm. ; 

 diam. 10 millim. Inhabits ? 



Neptunea ^estuosa. T. ovata, solida, fulvo-cinerea, sulcis 

 angustis remotis cincta, et fluctibus obliquis ad 12 ornata ; anfr. 



