NERITA. 29 



N. erubescens, Reeve (fig. 100), N. Neritopsoides, Reeve (fig. 1), 

 and N. costulata, Busch and N. Ewinyton.i, Reeve (fig. 94), the two 

 latter juveniles. 



Var. SIMONGLERIANA, Recluz. PL 6, figs. 96-98. 



Greyish, maculated with white, interruptedly trifasciate with 

 greyish black, riblets flattened, obscure, evanescent below, aperture 

 white. 



The type was a juvenile; and N. oleagina, Reeve (figs. 96, 97) 

 is a synonym. 



Var. QUADRICOLOR, Gmelin. Fig. 86. 



Whitish, yellowish white or rosy white, the ribs maculated with 

 purplish black, aperture white. 



Red Sea, Bombay, E. coast of Africa, Southward to Natal. 



It is N. maris-rubrce, Chemnitz. 



Var. INCURVA, Martens. Fig. 99. 



Variegated and interruptedly banded with black and yellowish 

 grey, aperture white tinged with yellow or fulvous, the outer margin 

 elongated and sinuated at the extremities, above and below ; riblets 

 about 30, flat, close, unequal. Diam. 30-39 mill. 



Mozambique, E. Africa. 



Var. GRAY ANA, Recluz. Figs. 2, 3. 



Riblets rather narrow and high, sometimes with intermediate 

 smaller ones, purplish, varying to ash grey, somewhat obscurely 

 maculated with purplish black or darker grey. Diam. 30-34 mill. 



East Indies and Philippines. 



Somewhat distinctive in color, but the markings and sculpture of 

 the usual patterns. 



Var. rrxicuLATA, Reeve. Figs. 95, 30. 



Black, with scattered white or yellowish white spots on the ribs, 

 aperture tinged with yellow. 



New Caledonia to Central Polynesia. 



The ribs vary in number and development, and are often irregular 

 in size on the same specimen. Some collectors have confounded it 

 with the West American N. scabricosta, but that species is larger 

 and more compressed and rounded and generally more rugose. 

 Probably N. punctata, Quoy and Gaimard (PI. 7, fig. 30) is identical. 



