220 



columellari recedente, superne dilatato, fornicatim patente. 

 — Long. 29, diam. vix 10 mill. Apert. I21/2 mill. longa, 

 5 1/2 lata. 



Habitat In Columbia ad fluviüm Maranhon. 

 20 Glandina alabastrina Alb. 



Testa fuöiformis , solida , confertim regulariter striata, 

 Candida, sericino-nitens; spira conico-turrita , acutiuscula; 

 sutura marginata, denticulato-crenulata; anfractus 7 con- 

 vcxiusculi, ultimus spiram aequans, basi attenuatus; colu- 

 mella superne breviter arcuata, basi striata, abrupte trun- 

 cata; apertura angusta, oblongo-elliptica. — Long. 51, diam. 

 21 mill. Apert. 25 mill. longa, medio 10 lata. 



Habitat in America centrali. 



21. Glandina subvaricosa Alb. 



T. oblongo-subfusiformis, tenuis, longitudinaliter sub- 

 arcuato- plicata, striis spiralibus confertissimis sub lente 

 sculpta, pallide carnea, irregulariter albo et fulvido strigata, 

 quasi varicosa; spira elongato-conica, apice obtusa; sutura 

 albo-crenulata ; anfr. 7 parum convexi, ultimus spira paulo 

 brevior, basi attenuatus; columella arcuata, ad basin aper- 

 turae verticalis, sinuato-ellipticae late truncata ; perist. Sim- 

 plex, rectum. - - Long. 61, diam. 23 mill. Apert. 31 mill. 

 longa, infra medium 11^/2 lata. 



Habitat in Venezuela. 



22. Clausilia Maranhon ensis Alb. 



T. non rimata, fusiformi-cylindracea, truncata, tenuius- 

 cula, confertim filoso-striata, haud nitens, Cornea, striis albi- 

 dis subpruinosa; sutura submarginata; anfr. superst. 7, 

 superi convexiusculi, reliqui subplani, ultimus solutus, bre- 

 viter descendens, antice coiiipressus, basi bicristatus; aper- 

 tura verticalis, ampla, pyriformi-subcirculaiis ; lamellae con- 

 vergentes, supera valida, linguaeformis, infera liexuose ascen- 

 dens; lunella distincta, angusta; plica palatalis 1 supera, 

 elongata, subcolumellaris inconspicua; perist. continuum, 

 albo-callosum, undique late expansum, reflexiusculum, ma>' 



