172 PLAN AXIS. 



sulci almost obsolete and a row of tile-like markings in the 

 middle of the last whorl. 



4. Saa'IGNYi, f. 4, Deshayes. — Quam P. aulcatus brevior, 

 Btilcis baud profundis ; ultimo anfractu infra medium 

 angulato, subconcavo. — Like No. 1, but shorter, with shallow 

 grooves, and an angle below the middle of the last whorl, 

 which is concave beneath. 



5. OBSCUBUS, f. 33, A. Adams, Proc. Zool. Soc. 1851. — 

 Angustus pyramidatus, fuscus et cinereus, strigis nigrescen- 

 tibus undatis flammulata, liris rotundis spiralibus cincta ; 

 anfractibus altis, ultimo obtuse angulato ; apertura euita, 

 intus valide dentata ; margine late fusco, labio externo prope 

 suturam depresso ; columella alba, planata truncata. — Of tlie 

 same general character as the four preceding, but narrower, 

 with aperture shorter and whorls elevated. 



6. CEASSisPiRA, f. 14, Smith. — Subcylindricus, grisescens, 

 maculis linearibus catenatis ornata ; spira obtusa anfractibus 

 elevatis; apertura brevi infra subtruncata, fusco marginata ; 

 columella infra planata, truncata. — The whorls exhibit a slow 

 increase, and thus give a cylindrical appearance to the shell, 

 which is prettily streaked with chain-like markings down- 

 wards. 



7. PLANicosTATUS, f. 12, Soiuerby. — Elevatim pyramidatus 

 solidus fusco-nigricans, inter liras planatas profunde sulcatus ; 

 apertura breviuscula margine, intus lirato, extus crenato, 

 columella late planulata truncata. — Sculptured by flattened 

 ribs between deep grooves. 



8. suTURALis, f. 13, Smith. — Parvus albus sulcatus pyra- 

 midalis ; apertura subtrigona, labio externo denticulato. — 

 A small white pyramidal shell slightly grooved, with teeth on 

 the outer edge of the aperture. 



9. CASTANEUS, f. 34, Smith. — Pyriformis acuminatus 

 castaneus tenuis ; anfractibus rectiusculis, ultimo infra sub- 

 rotundo, apertura trigona, intus lirata columella angusta. — 

 Chestnut in colour, pyramidal in foim, and quite smooth. 



10. BRASiLiANU?, f. 15, 16, LcmidrcJc. — Elevatim pyramid- 

 atus albus, laevigatus, epidermide piloso indutus ; anfractibus 

 convexiusculis ; apertura brevi lutea, labio externo superne 



