123 



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, externe cretacea longitudinaliter ordinatim 

 striata, costis et fossis suboequalibus (anfr. spira? ad 8) cincta ; 

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

 adoequante. Apertura pyriformis, rostro modico, labro arcuato, 

 intus denticulis submarginalibus instructo et strigis rufis costis 

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

 habits Arctic Ocean. 



In general form, like N. Icelandica 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 incrementi concinne 

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

 ultimo subvaricoso ; sutura exili. Apertura pyriformis, dimid- 

 iam long, testa? adrequans, labro acuto, serrulato, intus denticulato ; 

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

 diam. 10 millim. Inhabits ? 



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

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

 5-|- tumidis postice carinatis et apud fluetus subnodosis, versus 

 suturam declivibus. Apertura lunata, labro acuto intus sulcato ; 

 columella admoduin excavata ; rostro brevi valde recurvo. Axis 

 45 ; diam. 25 millim. Inhabits Kagosima. W. S. 



Euthrya lacertina. T. ovato-fusiformis, longitudinaliter 

 undulata et strigis rufis ornata, ad peripheriam pallide zonata; 

 anfr. 6 convexis prope suturam constrictis, et filis confertis cinctis. 

 Apertura dimidiam long, testae adrequans, lunata, postice acuta ; 

 labro arcuato, crenulato, intus sulcato, sulcis fusco tinctis ; colu- 

 mella flexuosa ; rostro brevi, lato. Axis 25 millim. ; diam. 10 

 millim. Inhabits Simon's Bay, Cape of Good Hope. W. S. 



