PLATE X. 



Gymtvobda Blakeana Dall ; 8.25. Page 126. 



Gymnobela extensa Dall ; 12,25. Page 126. 



Mangilia handella Dall ; 9.37. Page 116. 



Mangilia antonia Dall ; 5.75. Page 116. 



Leucosyrinx Verrillii Dall ; 36.0. Page 75. 



Drillia polytorta Dull; 33.5. Page 85. 



Drillia acestra Dall ; 19.0. Page 87. 



Drillia albicoma Dall ; 25.7. Page 83. 



Pleurotomella Emertonii Verrill & Smith ; 34.0, Page 122. 



Daphnella reticulosa Dall ; 11.5. Page 103. 



Daphnella sofia Dall, outer lip imperfect ; 8.0. Page 107. 



Mangilia? scipio Dall, outer lip imperfect ; 14.0. Page 117. 



Note. — The figures denote the actual length in millimeters of the longest diameter of the speci- 

 mens as figured, whether that be the height or the breadth, except where otherwise stated. 



