468 ADDITIONS AND CORRECTIONS. 



sutures, elegantly granose-cingulate ; umbilicus with a white, crenate 

 margin ; columella thick, twisted, incised above, passing into a thick 

 tooth below; lip thickened, silicate within, and splendidly pearly. 



Alt. 6, diam. about the same. 



A beautiful species, allied to T. coralliuus Gmel., but much 

 slenderer, elevated riblets densely crenate, interstices canaliculate. 

 Spiral riblets on penultimate whorl 4, on last whorl inclusive of 

 base, 12-14. Color uniform ruddy or scarlet, variegated with white 

 in the umbilical region. (Dkr., in Mai. Blatt., xviii, p. 168, 1871.) 



Viti Is. 



I suppose this to be the form I mentioned as "rubicundus Migh." 

 in treating of Clanculus plebeius. See page 80. 



CLANCULUS ASSABENSIS Caramagna. PI. 51, fig. 4. 



Shell conoid, turbinate, thick, umbilicate ; spire subconic, as long 

 as the aperture; whorls 6, first two smooth, mamillated, whitish, 

 the third whitish, obsoletely spirally funiculate ; the rest ornamented 

 with regular, rounded, crenulate granulose spiral cords; granules 

 close, formed by axial sulci ; last whorl with about 12 cords; the 

 periphery subangularly rounded, base little convex ; umbilicus very 

 narrow, deep ; aperture subquadrangular ; columellar lip below with 

 2 or 3 delicate folds ; outer lip plicate within ; sutures canaliculate. 

 Surface whitish, with ashen or wine-tinted spots in oblique series. 



Alt. 8-1, diam. 9 mill. 



j Red Sea. 



MONODONTA. 



Page 94. Figure 28 of pi. 21 is not J/. crassa, but M. turbinata. 



Page 106. After M. neritoides Phil., add PI. 38, figs. 20, 21, and 

 the habitat Japan. The figures on pi. 38 are copied from Dunker ; 

 they are much more globose than Philippi's, and may prove dis- 

 tinct. 



DILOMA NANA Gould. T. miiiutii, fusca, oyato-globosa ; anfr. 4, 

 convexis, bene discretis, apicali simiplici, alteris liris et sulcis 

 angustioribus cinctis ; liris ordinatim quasi plicatis ; basi rotundato, 

 pallidiori, vix perforate ; columella arcuata, denticulata ; labro iutus 

 imdulato; fauce livida., diam. 5 mill. (Old. in Proc. Bost. N. H. 

 viii, p. 18). 



Loo Choo. 



DILOMA VERRUCA Gld. T. parvula, ovato-conica, dilute rosacea ; 

 anfr. 4 ; convexis, sutura canaliculate sejunctis, liris binis elevatis 



