MONILEA. 253 



Easily to be distinguished from T. calliferus by the thin shell, 

 fine sculpture, and colored columellar callous. The example figured 

 is about double the size of the othei- specimens seen, according to 

 Dr. Fischer. 



M. EGENA Gould. Vol. IX, PI. 6, figs, 22, 23 ; vol. XI, 'pi. 37, f. 

 13. 



Shell minute, low ovate-conic, thin, amply umbilicated, ashy white, 

 pearly beneath ; whorls 6, convex, the last obtusely angular, each 

 one encircled by 4 sharply-compressed well-elevated ribs the two 

 uppermost of which are beaded ; interspaces concave, smooth, with 

 a single groove near the margin of the umbilicus ; the latter occupies 

 i of the base, is tunnel-shaped, penetrating to the apex, its sides ex- 

 cavated on each whorl, the verge of which is crenulated ; aperture 

 nearly circular, slightly encroached upon by the inflection of the 

 columella ; lip simple ; interior pearly. 



Alt. I, diam. 3-10 inch. (Gould.) 



New Zeakuid. 



Solarium egenum GoulL', Proc. Bost. Soc. X. H. iii, p. 84 (1868) ; 

 U. S. Expl. Exped. Shells, p. 196, atlas, fig. 226. — Monilea zeland- 

 ica HuTTON, Cat. Mar. Moll. N. Z. (187 S).—3Iargarita zelandica 

 Hutton, SowB. in Conch. Icon., Monog. Margarita, f. 17. — Monilea 

 egena Hutton, Proc. Linn. Soc. X. S, Wales, 1884, p. 365. — Torinia 

 egena Marshall in Tryon, Manual of Conchology^ ix, ]:». 22, t. 6, 

 £ 22, 23. 



I have not seen this shell. I follow Prof. Hutton in referrino- it 

 to Monilea. PI. 37, fig. 13 is the Margarita zelandica of Sowerby. 



Unfigured species of Monilea. 



M. TURBiNATA Tenison-Woods. 



Shell turbinately conical, perspectively umbilicate to the apex, 

 fleshy whitish, clouded with pale brown spots and streaks ; whorls 

 6, rounded, obtusely angulate and subcanaliculate above, spirally 

 sulcate, and girdled with numerous (about 12) lir?e alternating great 

 and small ; suture impressed ; apex obtuse and pearly ; last whorl 

 angulate at the periphery ; base convex, lirate and transversely 

 slenderly spirally striate ; aperture transversely ovate ; lip thickened 

 and nacreous, lirate within ; columella short, sloping, concave ; 

 umbilical margin 3-costate, terminating with 4 tubercles. Closely 



