1 1 6 NERITA. 



labio externo intus crenato, superne conspicue bideiitato. — 

 This species, the Le Guillouana of Recliiz, fid. Reeve, I believe 

 to be well shown in Chemnitz's f. 1950, 1951, and referred 

 to by Grmelin and Lamarck. 



62. Savieana, f. 47, Recluz. — Quam N. undata magis 

 globosa, spira magis depressa, liris magis conspicue sculptis ; 

 grisea, nigro fasciatim tessellata. — Shorter, thicker, and more 

 strongly ribbed than N. imdata ; grey, linearly tessellated 

 with black in bands. 



63. CHEYSOSTOMA, f. 35, Recluz. — Quam N. undata magis 

 elevata et acuminata, costis magis conspicuis et distantibus ; 

 anfractibus superne concavo-depressis ; apertura aurantio fre- 

 quenter tincta, area colnmellari rude plicata et dentata. — 

 N, oleagina, Eeeve, should be referred to this species, 

 although smaller and whiter in the mouth. 



64. AscENSiONis, f. 72, Reeve. — Globoso-acuminata, lutea, 

 costis prominentibus, nigro articulatis tenuiserratis lirata ; 

 spira elevata, anfractibus subrotundis ; -apertura Iffivi, fulva, 

 columella fortiter dentata. — With very prominent, minutely 

 serrated ribs, which are conspicuously tessellated with black ; 

 the mouth is smooth, with several large marginal teeth. 



65. GRISEA, f, 16, Reeve. — Grloboso-acuminata, leviter 

 spiraliter costata, trifasciatim nigro variegata ; spira elevata 

 anfractibus obliquis ; columella corrugata et dentata, labio 

 externo intus moderate plicato et superne unidentato. — Like 

 N. Ascensionis in form, but without prominent ribs, varie- 

 gated with mottled black in three bands. 



66. riLOSA, f, 17, Reeve. — Oblique globoso-acuminata, 

 lutea, tenuiter fills elevatis rubris distantibus subserratis 

 lirata; spira elevata, anfractibus declivibus ; apertura an- 

 gusta, Isevi, moderate dentata. — With a raised spire and 

 sloping whorls, threaded with very thin, divided, red, serrated 

 ridges. The aperture is rather small, white, moderately 

 toothed, with smooth columellar plaits. 



67. EssiNGTONi, f. 42, Reeve. — Globoso-acuminata, grisea 

 nigro purpurascente late fasciata et marmorata ; spira 

 elevata, acuminata, anfractibus subter suturam excavatis ; 

 apertura subccerulea, Igevi, moderate dentata. — Of a dark grey 

 colour mottled with black, in bands ; spire raised, acuminated ; 



