NERITA. 109 



pansa, area columellari laeviuscula, nigra, zonis aurantiis 

 binis cincta. — More globose and less expanded than the pre- 

 ceding, strongly ribbed, black, with an orange band at the 

 suture and another below the last whorl. 



23. HAUSTRUM, f. 77, Reeve. — Ovato-globosa, nigro profuse 

 marmorata sulcata ; spira paulo elevata ; apertura profunda 

 angustiuscula, area columellari minute granulata, margine 

 vix dentato. — Rather more obliquely oval than globose ; 

 rather sulcated than ribbed, with the mouth a little con- 

 tracted, the columella minutely granular and rather hollow, 

 with very inconspicuous teeth. 



24. coMMA-NOTATA, f. 59, Reeve. — Quam N. haustrum 

 magis rotunde ovata, dentibus columellse majoribus, costis 

 latis, distinct! s, nigro quadratim articulatis, interstitiis an- 

 gustis profundis. — Distinctly broad-ribbed, with deep narrow 

 grooves. The ribs are j&attened, and marked by long comma- 

 like spots, 



25. EXCAVATA, f. 84, Soiverby. — Oblique ovato-globosa, 

 nigra, albo variegata, costis validis, subcomplanatis, approxi- 

 matis lirata, spira subproducta obtusa ; apertura flavida, nigro 

 marginata, angusta, profunda ; area columellari granulata, de- 

 clivi, excavata, dentibus marginalibus tumidis, acutis ; labio 

 externo intus sublirato, supra infraque acute bidentato ; 

 margine externo nigro, crenulato. 



26. FRAGUM, f. 7, Reeve. — Subovato-globosa, dense lirata, 

 nigra, maculis lutescentibus sparsim variegata ; apertura 

 fulva, angustiuscula; area columellari Isevi, fere edentula, 

 sanguineo unimaculata. — More globose than the two or three 

 preceding, with a smooth columella marked by a broad 

 reddish- brown spot. 



27. TESSELLATA, f. 86, 87, 88, 89, Gmelin. — G-loboso- 

 subquadrata, rotunde lirata, alba, nigro concinne tessellata, 

 vel rude maculata ; apertura leevi, dentibus columellae mi- 

 nutis, labii externi superne conspicuis. 



28. ALBiPUNCTATA, f. 119, 120, Reeve. — N. tessellatce 

 similis, liris subdistantibus nigris, interstitiis albipunctatis. — 

 I have not examined Reeve's shell, but if it really differs 

 from iV. tessellata, it will be in the interstices rather than 

 the ribs being spotted with white, and broader in proportion. 



