>I \. 



continued, and more OOnaplGUOUl "ii the ba-e ; whorl- , . with 

 lirate suture, aj>erture conspi<MKu-ly bilabiate. L> njili. :; mill. 



ini'i. 



\\. M \i I:ITI \N \, Martens. PI. lii. lig. 



Kat her thick, white. >t roiigly, rat her clo--ly. loirjit udinally ribbed 

 throughout, crossed by spiral ridges, forming Spiral seri- of nodule-, 

 of which there are two on the penultimate and five or -ix on tin- 

 last whorls; whorls 4-j, convex; prristoinc thickened, simple. 



Length, 1*5 mill. 



Mauritius, 



R. VKNTSTA, (Jarrett. PI. IIS, fig. 90. 



Shell imperforate, solid, vitreous, shining, white, with strong- 

 compressed spiral ridges, of which there are ~> on the body whorl 

 and 2 on the spire, crenulated by close, less conspicuous, longitudi- 

 nal, rounded riblets; whorls about 7, convex, with deep, margined 

 suture; lip very thick, varicose. Length, 3'5 mill. 



Vit: Tt. 

 Section GALEODIXA, flouts. 1884. 



H. STIIIATULA, Montagu. PL 66, fig. 58. 



Rather solid, opaque, yellowish white, thinly longitudinally 

 striate in the interstices between much stronger spiral ridires, which 

 carinate and shoulder the whorls; aperture a little dilated below, 

 smooth within, ridged- varicose externally. Length, 4'"> mill. 



R. Russinoniaca, Locard, R. labiata, Phil. R. trochkn. Mich., and 

 /.'. r.h-inttfit, Da Costa, are synonyms. 



It. < ONSOCIKLI.A, and R. KI.KCTA, Mts. ( rntigured . .17 



Section TiiAi'siKi.i.A, Fischer, i 

 R. BTJDI8, Phil. PI. lii;, Ii- -V.l. 



Hyaline, sometimes faintly .-Innate \\ith che-t nut, spirally striate. 

 spire and upper part of body whorl longitudinally, rather faintly 

 costatc; whorls ;', somewhat convex; lip simple, plain within and 

 without. Length, 2'<5 mill. 



P. FI:I:MI:NVILI,KI, Audouin. PI. C.7. fig, 



Imperforate, shining, white, with lonj-'mnlinal -ubdi-tant ribs, 

 tailing out on upper part of body whorl, closely -pirally >tri:ite 



