207 



58. Odostomia gravida, Gould, p. U. pi. 14. f. 14. 

 Hab. Sta. Barbara {Jewett). Mus. Gould. 



59. Chemnitzia tenuicula, Gould, p. 10. pi. 14. f. 15. 

 Hah, Sta. Barbara {Jewett). Mus. Gould. 



60. Chemnitzia TORauATA, Gould, p. 11. pi. 14. f. 16, 

 Hab. Sta. Barbara {Jeivett). Mus. Gould. 



61. SiGARETUS DEBILTS, Gould, p. 6. pi. 14. f. 17. 



Hab. La Paz {Lieut. Green). Mus. Gould. 



62. Fasciolarta bistriata, n. s. 



F. t. regulari, tenui, aurantio-fusca, epidennide fenui induta ; 

 anfr. ix. quorum duo nucieosi Iceves, ajnce mamillato, subdeclivi ; 

 normalibics convexis, sutura distincta ; costis tfa7isversis (in 

 anfr. penuU. xvi.) tumentibus sed planatis, attingentibus, in- 

 tershtns parvis, ad basin evanidis ; lirulis acutis spiralibus 

 {in anfr. penult. vi.) et inter eas striulis crebris, costis trans- 

 euntibus, eleganter ornata ; apertura ovali, albida ; labro 

 acuto, secundum liruJas intus sulcato ; parietė secundum lirulas 

 plicato; labio ad basin parvo, mx plicato ; canuli elongato, 

 subrecto. 



Loug. 1-07, long. spir. -42, lat. -48, div. 50°. 



Hab. Panama, teste Gould ; sp. unic. in Mus. suo. 



The columellar folds in this very elegant and delicate shell are in- 

 distmct, but are compensated by the continuations of the spirai 

 lirulse over the bodj whirl. 



63. Olivella intorta, n. s. 



O. t. parva, ovoidea, subfumenfe ; sutura vix sukata; albido- 

 gnsea, fascia indistincta siibsuturali olivacea, Jlammulis et ma- '^ '^ ■ 

 culis purpureo-fuscis plūs minusve ornata ; apertura antice 

 aperta, postice angusta ; callositate parietali ad suturam pen- 

 ultimam producta ; columella maxime intorta, plica ad basin 

 acuta, in parietė duabus seepe indistinctis ; extus, linea spirali 

 antica unica. 

 Long. -52, long. spir. -17, lat. -26, div. 60°. 

 Hab. San Juan ; legit Dr. Green. Mus. Gould. Item, loc. in- 

 cert. Mus. Cuming. 



A well-marked species, resembling the West Indian O. buUata, 

 on a much larger scale. The specimens vary in tumidity and height 

 of spire. The panetal callosity extending over the penultimate 

 whirl hides the colour of the spire. 



64. Marginella Jewettii, n. s. 



M. t. parva, alba, ovoidea ; spira depressa, sutura celata, antice 

 angustiore, postice tumidiore ; labro via: incrassato, medio in- 



