434 MESSRS. H. AND A. ADAMS ON NEW SHELLS. [Nov. 10, 



ornata, transversim lirata, liris incequalibus fusco articulatis ; 



apertura subcirculari ; labia subcalloso, refiexo. 



Hab. 1 {Coll. Cuming.). 



A prettily marked species, with an elevated conical spire, and with 

 the inner lip reflexed and callous. 



24. Stomatella caliginosa, H. & A. Ad. 



S. testa auriformi, imperforata, oblonga, nigricante, spira parva, 

 transversim lirata, liris majoribus cum minoribus alternantibus, 

 obsolete albido articulatis; apertura oblonga, perobliqua, intus 

 viridescenti-alba, margine nigro crenulata ; labio planiusculo, rima 

 umbilicali anguste lunari. 



Operculum tenue, orbiculare, multispirale. 



Hab. ? (Coll. Cuming.). 



A brownish-black lirate auriform species, more resembling a Gena, 

 but with the operculum of Stomatella. 



25. DiALA LIRATA, H. & A. Ad. 



D. testa turrita, rimata, semipellucida, alba ; anfractibus 6, con- 

 vexis, postice subangulatis, lineis longitudinalibus et liris validiori- 

 bus transversis obsolete cancellatis ; apertura rotundato-ovata, 

 antice vix effusa. 



Hab. ? {Coll. Tyler.). 



A neatly fashioned, white, semipellucid species, with the whorls ob- 

 scurely cancellated. This and the species described below belong to 

 the section of Alaba in which the whorls are not variced. 



26. DiALA NODICINCTA, H. & A. Ad. 



D. testa ovato-conica, rimato-umbilicata, alba, subdiaphana ; anfrac- 

 tibus A\, postice angulatis, carina nodulosa concinne ornatis, an- 

 fractu ultimo vix sejuncto ; apertura rotundato-ovata ; peritremate 

 acuto, continue. 



Hab. ? {Coll. Tyler.). 



A very pretty species, with the whorls posteriorly angulate, and 

 encircled with a row of nodules. 



27. POMPHOLYX LEANA, H. & A. Ad. 



p. testa helicoidea, depressa, tenui, epidermide viridi ohtecta, spira 

 parva; anfractibus 2\, convexis, rapide accrescentibus, ultimo per- 

 magno ; apertura patula ; labio planiusculo, arcuato ; labro sim- 

 plici, acuto. 



Alt. li line, lat. 2i lines. 



Hab. West Columbia (Coll. H. Adams.). 



This is a second species of Pompholyx, and differs from P. effusa. 

 Lea, in being thinner and smaller, in the spire being more elevated, 

 and in the aperture not being so produced anteriorly. 



28. ASSIMINEA LATERICEA, H. & A. Ad. 



A. testa ovato-conoidali, solidiuscula, latericea ; anfractibus 5^, 



