139 
apice obtusa; sutura subcrenata; anfr. 55 convexiusculi, ulti- 
mus subinflatus, a medio deorsum striis spiralibus destitutus ; 
columella arcuata, basi late truncata; apertura verticalis, acu- 
minato-ovalis, intus margaritacea ; perist. rectum, acutum. 
Long. 43, diam. 22 mill. 
Hab. La Parada, Oajaca, Mexico (Mr. Sallé). 
28. CyLinpRELLA GRANDIS, Pfr. (Pl. L. fig. 3.) TT. profunde 
rimata, turrita, late truncata, solidiuscula, oblique filoso- 
striata, interstitiis sub lente oblique striatulis, nitidula, fusco- 
rubella ; sutura sub-albo-marginata ; anfr. superst. 8 convexius- 
cult, ultimus basi obtuse carinatus, antice vix protractus ; colu- 
mella subplicata ; apertura vix obliqua, ovalis, superne suban- 
gulata ; perist. continuum, breviter expansum, vix reflexiuscu- 
lum. 
Long. 56, diam. 17 mill. 
Hab. Juquila, Mexico (Mr. Boucard). 
29. CyLINDRELLA MEXICANA, Cuming in litt. T. suleato-rimata, 
turrita, truncata, leviter arcuato-striata et sub lente punctu- 
lata, parum nitens, violaceo-fusca ; sutura levis, subalbida ; 
anfr. superst. 10 planiusculi, ultimus infra medium obtuse an- 
gulatus, antice protractus, dorso carinatus; columella plica com- 
pressa, dentiformi munita; apertura vix obliqua, irregulariter 
ovalis, superne angulata ; perist. continuum, undique reflecum, 
margine dextro incrassato, regulariter arcuato, sinistro sinuoso. 
Long. 55, diam. 15 mill. 
8. Minor, anfr. superst. 8. Long. 323, diam. 10 mill. 
Hab. Mexico. 
30. CyLINDRELLA SPLENDIDA, Pfr. (Pl. L. fig. 1.) 7’. rimata, 
turrita, late truncata, solidula, oblique filoso-costulata, nitidula, 
carneo-violacea; sutura sub-albo-filosa, crenulata; anfr.superst. 
8-83 modice convexi, ultimus obsoletissime filo-carinatus, antice 
breviter solutus ; columella subplicata ; apertura fere verticalis, 
oblique ovalis; perist. continuum, album, breviter reflexum, 
superne subangulatum. 
Long. 46, diam. 15 mill. 
Hab. Zacatepec, Mexico (Mr. Boucard). 
31. CyLInDRELLA ARcTospiRA, Pfr. (Pl. L. fig. 2.) TT. rimata, 
cylindraceo-turrita, late truncata, solidula, confertim subar- 
cuato-costata, subopaca, albida; sutura profunda, subnodulosa ; 
anfr. superst. 18, arcte voluti, convexi, ultimus angustior, filo- 
carinatus, antrorsum breviter protractus ; apertura parvula, 
obliqua, oblique ovalis; perist. continuum, nitidum, undique 
breviter reflecum, margine sinistro lateraliter producto. 
Long. 38, diam. 10 mill. 
Hab. Juquila, Mexico (Mr. Boucard). 
