106 NERITA. . 



the columellar area warted as well as toothed, an inner circle 

 of the mouth generally orange. 



3. SEMIRTJGOSA, f. 1, Recluz. — N. politce similis, sed 

 spiraliter striata. — Resembling N. polita in form, but more 

 or less distinctly spirally striated. 



4. MAXIMA, f. 36, Chemnitz. — N. politce similis, sed spira 

 magis elevata, anfractibus superne depressis, apertura superne 

 subconstricta. — Resembling N. polita, but with more elevated 

 spire, and the whorls hollowed and depressed obliquely. 



5. Rdmphii, f. 8-11, Recluz. — N. politw similis, magis 

 anguste ovata, area columellari subverrucosa, columella 

 minute dentata, coloribus variis fasciata et maculata. — Smaller 

 and narrower than N. polita, with the columella only slightly 

 toothed and shelving. JSf. argus seems only to be a dark 

 variety slightly speckled with white. 



6. Okbignyana, f. 48, 49, Recluz. — Ovato-oblonga, 

 angusta, laevigata, tenuis ; punctis nigris albo-marginatis 

 angulatim dispositis picta ; area columellari ad marginem 

 externum verrucosa, margine interne dentato, medio emar- 

 ginato.— Not far differing from N. Rumphii, but thinner 

 and more elongated. The zigzag markings are formed by 

 white-edged black dots. 



7. Umlassiana, f. 125, Krauss. — N. Rumphii similis 

 oblique magis elongata, labio externo ad spiram magis ex- 

 tenso, colore subviridi, nigro marmorata. — Narrower than 

 N. Rumphii, with the outer lip extended over part of the 

 spire. 



8. HiSTiuo, f. 6, Linnceus. — Magna, solida, oblique elon- 

 gata, spiraliter subdistanter striata, pallida griseo seriatim 

 maculata, et partim tessellata ; spira brevissima anfractibus 

 superne subplanatis apertura expansa ; area columellari sub- 

 verrucosa, margine valide dentato.— More oblong than N. 

 pjolita, rather flat, with rather flat spire, strongly spirally 

 striated, and tessellated with black and grey. 



9. MAUKA, f. 37, 55, Recluz. — Quam N. histrio spira magis 

 elevata, apertura multo magis expansa, colore griseo-nigri- 

 canti, nigro obscure tessellato. — The spire is much more 

 elevated and rounded, the whorls less depressed, the aperture 

 more expanded, and the columellar area more coarsely ver- 



