472 ADDITIONS AND CORRECTIONS. 



an elevated ridge, inside decussated by concentric line and radiating 



lines. (P. Z. S. 1854, p. 40.) 



A^istralla, Mas. Caming. 



Sowerby's figure (^ Conch. Icon. Margarita, f. 25) is copied on uiy 



pi. 61, fig. 37. 



Margarita pulcherrima ("A. Ad.") Sowerby. PI. 37, fig. 1. 



Shell raised, trochus-shaped, rather distantly spirally ridged, 

 between the ridges regularly striated ; ridges minutely beaded, 

 spotted with red ; umbilicus large, keeled ; columella oblique. (Soivb.) 



Japan. 



M. pulcherrima (' A. Adams. ? ') Sowerby, Jr. in Reeve, 



Conch. Icon., f. 11. 



Probably belongs to Minolia. 



Margarita marmorea Pease. Shell somewhat depressedly turb- 

 inate; spire short, spirally striated ; aperture circular, umbilicate ; 

 inner lip reflected over the umbilical region. Color light green, 

 clouded with white and green of different shades, and marked with 

 occasional longitudinal and oblique zigzag lines of dark green. 



( W. H. Pease, in P. Z. S. 1860, p. 435.) 



Sandwich Is. 



The following six descriptions are from Proc. Bost. Soc. Nat. Hist. 

 viii, 1861, p. 15, 16. They are reprinted in the original order. 



Margarita ianthina Gould. T. globoso-conica, dilute ianthina, 

 striis crebis volventibus cincta, satis umbilicata, ad peripheriam sub- 

 angulata; anfr. 6+, ventricosis ; sutura profunda; apertura ro- 

 tundata, antice subangulata ; columella recta, acuta ; fauce mar- 

 garitacea. Axis 8, diam. 20 mill. 



Arctic Ocean. 



Similar in form and size to L. shantarica INIidd., but thinner, more 

 angular, differently colored, and with a much larger umbilicus. 

 ( Gld.) 



MarctARita musiva Gould. T. i^yramidalis, margaritacea, 

 crusta cinerea, fusco tessellata induta ; anfr. 6, ultimo tricarinato, 

 (ceteris bicarinatis) ; base convexiusculo, polito ; umbilico amplo, 

 conico, carina plicata marginato ; apertura circularis ; columella vix 

 reffexa, ad carinam umbilicalem terminante. Operculum corneum, 

 lineis incrementi conciune granulatis. Axis 6, diam. 5 mill. 



Ho)ig Kong Harbor, 10 fms. 



Allied to M. carinata, biaugulosa, etc. {Gld.) 



