2 Geomelania. 



Species fossilis: Acme constellata Reuss 1849. 

 Species exclusa: Acicula striata Gray (Pfr. Pneum. II. 

 p. 4) zz Truncatellae species? 



II. Geomelania Pfr. 



Pfr. Mon. Pneuni. p. 7. Suppl. p. 5. — Omnes species 

 insulae Jamaicae incolae. 



Species : 



1 Jamaicensis Pfr. (Coll. 4.) Pneum. II. p, 5. 



2. minor C. B. Adams. (Coll. 5.) - - - 5. 



C. B, Adams. t 



I Chitty. t - - - 6. 



Species exclusae: 



Geom. Greyana > 



— Beardsleana | C. B. Adams = Truncatella sp. 



— pygmaea ' 



— sinuosa Chitty = Chittya Livesay. 



III. Chittya Livesay. 



„Testa imperforata, conico-cylintlrica; apertura ovata, 



mediocriter effusa; peristoma incrassatum, acute rettexum, non 



productum, sinu lateris interioris prope axin munitum." (Ad.) 



Chitlia novum genus Truncateilidarum : Livesay u\ 11. ^- A. Adams 



Gen. II. (Pt. 35, 1858.) p. 647. t. 138. f. 14. 



