152 BUCCINID^. 



dark brown epidermis, sometimes translucent, covers the living 

 shell, but cabinet speciiuens are usually denuded of this, exhib- 

 iting upon an ivory-white surface, spots and maculations of 

 orange-red. The aperture is usually white, sometimes tinged 

 with violet upon the columella. This pattern of coloring is most 

 uniform throughout the genus ; but the species are distinguished 

 by modifications of the arrangement of the color-spots, as well 

 as by the differences of shoulder and umbilicus. None of the 

 species are strictly banded, although in some the coloring coal- 

 esces into irregular revolving masses. The coloring reminds 

 one strongly of Phasianella, whilst the shell, except for the want 

 of its characteristic groove and tooth, recalls the genus Pseudo- 

 liva — one of the species of which was formerly erroneously 

 referred to this group. The surface of the shell is invariably 

 smooth, devoid of the sculpture of ribs, strige, tuberculations, 

 etc. The operculum is ample, filling the aperture. The Eburnse 

 are natives of the tropical seas of the Eastern hemisphei"e. 



ZEMiRA, H. and A. Adams. Umbilicus moderate ; oiiter lip 

 with a tooth near the fore-part- The revolving channel near the 

 base of the shell, ending in a tooth-like projection on the outer 

 lip, has induced Sowerby to class this species in the genus 

 Pseudoliva ; it seems nearly related to Eburna, however. E. 

 Australis, Sowb. (1, 40). 



Macron, H. and A. Adams. 



Distr. — 4 sp. California, W. Patagonia. M. Kellettii, A. Ad. 

 (],4n. 



Shell ovate, solid, with a thick epidermis ; spire elevated ; colu- 

 mella wrinkled, with a callosity at the upper part ; outer lip thin, 

 with a small tooth anteriorly. Operculum ovate, with apical 

 nucleus. 



This was originally described as a subgenus of Pseudoliva, 

 which it resembles in having an inferior revolving groove termi- 

 nating in a small tooth-like projection of the outer lip ; the 

 operculum, however, is unguiculate like that of the Eburnse, 

 whilst that of Pseudoliva is purpuroid. The more decided canal 

 and absence of sutural channel, and the rather persistent blackish 

 brown epidermis, will distinguish it from the subgenus Zemira 

 of Eburna. Its locality, West Coast of America, is also a 

 distinctive character; Eburna being East Indian, and Pseudo- 

 liva African in distribution. 



Subfamily PHOTIN^. 



Phos, Montfort. 

 Etym. — P/ios, light. 

 Syn. — Rhinodomus, Swn. Strongylocera, Mdrch. 



