NERITINA. 39 



coloring. N. Waigiensis, Lesson, N. strigillata, Sowb., ^V. zebra, 

 Troschel, N. elegantina, Busch, and N. elegantissima, Morch, are 

 synonyms. 



N. RECLIVATA, Say. PI. 12, figs. 25-30. 



Shell olivaceous, sometimes light brownish, with oblique, some- 

 what undulating or zigzag narrow black lines, usually parallel but 

 sometimes reticulating, the aperture and convex columellar area 

 bluish white. Diam. 15-23 mill. 



Florida, West Indies, Mexico, Central America 



N. lineolata, Lam., is now supposed to be identical, and according 

 to printed dates of publication has three months' priority ; but con- 

 ceding this, it would still be of very questionable advantage to 

 science to substitute a name which has been variously identified for 

 one the application of which has never been doubted, and so has 

 become well-known. JV. zigzag of Lam., not authors, has also been 

 referred here. Other synonyms are N. microstoma, d'Orb., N 

 grams, Shuttl. and Morelet, ^Y. olivacea, Wiegm., and var. conoidalis, 

 Martens, for the conical, lineolate form with parallel strigations; N 

 reticulata, Cristofori and Jan, for the specimens with reticulated 

 pattern; and N. striolata, Recluz (fig. 28), N. Floridana, Shuttle w. 

 (fig. 29), and var. rotimdata, Martens, for a short-spired form. 



N. VIRGINEA, Linn. PI. 12, figs. 31-45. 



Smooth, polished, usually white, sage colored, yellowish or vio- 

 laceous, with a fine, close painting of parallel longitudinal darker 

 colored lines, either extending across the entire surface or inter- 

 rupted so as*to form spiral zones, upon this surface of close lines are 

 placed miscellaneously numbers of subtriangular spots of the ground 

 color of the shell, sometimes covering it entirely, at other times 

 forming spiral bands of large spots, with smaller intermediate ones. 



Diam. 6-20 mill. 



West Indies to Brazil. 



I have figured some of the common as well as the more striking 

 color modifications of this elegant and very variable species. There 

 are two or three patterns of coloring which are much more common 

 than the others, yet which cannot be called varietal ; they are 1st, 

 whitish violaceous, covered by close violet lines upon which are 

 triangular spots ; 2d, a similar pattern, but the colors light and 

 dark olivaceous ; 3d, light sage green, with darker lines, but almo.st 

 covered over by the spots which are arranged somewhat as on a 



