NERITINA. 75 



Section ALINA, Recluz, 1842. 



N. CARIOSA, Gray. PI. 22, figs. 79-81. 



With distinct growth lines, and sometimes engraved spiral strise, 

 body whorl convex, swollen, dilated into wings above and below, 

 spire visible, flattened, epidermis black or very dark brown, with 

 numerous close minute yellowish spots, sometimes scarcely visible ; 

 aperture bluish, sometimes yellowish, columellar margin scarcely 

 arcuate in the middle and slightly dentate, terminating with a larger 

 superior tooth. Diam. 18-25 mill. 



Sandivich Is. 



In young specimens the wings are often not developed, and then 

 the shell would scarcely be taken for a member of this group. Von 

 Martens changes the name to N. Sandwichensis, Desh. because he 

 thinks that Gray's figure should be referred to N. Mauritii, *Lesson ; 

 I do not agree with him : the figure appears to me to be decidedly 

 that of the present species. Other synonyms are N. Nuttalli, Recluz. 

 N. convexa, Nuttall, N. solidissima, Sowb., N. lugubris, Phil., N. per- 

 striata, Mousson, N. tristis, Phil, N. affinis, Recluz., (=N. lugubris, 

 Sowb. fig. 83.) 



X. MAUKITII, Lesson. PI. 22, fig. 82. 



Rather more depressed than the preceding species, with the wings 

 larger and more dilated, somewhat rugose, epidermis black, unicol- 

 ored ; aperture bluish white, columellar margin minutely dentate in 

 the middle. Diam. 18 mill. 



Mauritius, Ins. Bourbon, Mas Karene Is., E. coast of Madagascar. 



It is N. auriculata, Sowb., N. alata, Robillard, N. Deshayesii, Pease, 

 N. Sandwichensis, Desh, 



N. LIFOUANA, Gassies. PL 22, fig. 84. 



Spirally striulate, shining, light yellowish, unicolored, translucent ; 

 aperture yellowish white, columellar margin with about five minute 

 teeth in the middle. Diam. 18 mill. 



New Caledonia. 



I have not seen this species. 



N. DILATATA, Brod. PI. 22, figs. 85, 86. 



Shell broadly winged, rather regularly striulate, yellowish olive, 

 sometimes with three indistinct spiral pink bands, covered through- 



