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 subrequalibus (anfr. spiral ad 8) cincta ; 

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

 ada?quante. Apertura pyriformis, rosti'o 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 fluctus subnodosis, versus 

 suturam declivibus. Apertura lunata, labro acuto intus sulcato ; 

 columella admodum 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 coustrictis, et filis confertis cinctis. 

 Apertura dimidiam long, testa? adajquans, 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. 



