NATICA. 15 



Var. MACULATA, Desh. PI. 2, fig. 24. 



The spots larger, less sharply defined, often interruptedly con- 

 fluent, with three interrupted bands of larger spots or macula- 

 tions. 



Appears to connect closely with the type form, but has been 

 separated as a distinct species of late years b^- several eoncholo- 

 gists on account of differences in the lingual dentition. 1 retain 

 the name b}^ which the species is well known instead of the prior 

 one of N. hebrsea, Martyn — which has scarcely obtained currency. 

 Other synonyms are N. tiHfasciata (Recluz), Adams ; N. aspersa^ 

 Menke ; N. cruentata^ Payr. 



Monterosato has named as color-varieties, fusca, immaculata, 

 and rarimaculata. The latter appears to me to connect with the 

 next species. 



Var. SANGUiNOLENTA, Brusiua. PI. 2, fig. 25. 



The punctations coalescing into undulating longitudinal flam- 

 mules. 



I^. FULMiNEA, Gmelin. PI. 2, figs 26, 27. 



Shell solid, somewhat tumid and plicately striated next the 

 suture ; umbilicated, but the umbilicus partly covered by an 

 overgrowing callous deposit on the upper part of the columellar 

 lip, which finally becomes very thick; wliitish, with longitudinal 

 undulating or zigzag chestnut markings, sometimes partly broken 

 up into spots ; often peppered with minute spots between the 

 larger markings ; occasionally the zigzag lines break up into 

 three revolving series. Length, l-r75 inches. 



West Coast of Africa. 



The synon3'my includes N. cruentata and N. arachnoidea, 

 Gmel.; ? N. i^ardalis, Phil.; N. hifasciata (Recluz), Reeve ; N. 

 punctata, Swainson ; N. Senegalensis, Recluz (fig. 28) has been 

 placed here hy Reeve and Sowerby ; the figure has the markings 

 of fulminea, but appears to possess a more conical spire ; it is 

 probably distinct. 



N. Adansoni, Phil. PI. 2, fig. 30. 



Small, solid, yellowish maculated and spotted with chestnut, 

 upper and lower portions of body-whorl free from spots, or 



