Plecotrema Cubense Pfr. 
Blauneria heteroclita Sh. 
Leuconia occidentalis Pfr. 
— suceinea Pfr. 
Proserpina depressa d’Orb. 
Cyclotus minimus @dl. 
— perdistinetus Gdl. 
Lieina percrassa Wright. 
Megalomastoma alutaceum Mke. 
— apertum Poey. 
— auriculatum d’Orb. 
— bitubereulatum Sow. 
— complanatum Pfr. 
— digitale Gdl. 
— Gundlachi Pfr. 
— leoninum Pfr. 
— Mani Poey. 
— seminudum Poey. 
— tortum Wood. 
— ventricosum d’Orb. 
Choanopoma alatum Pfr. 
— Arangianum Gdl. 
— auricomum Gdl. 
— Bebini Ar. 
— Blaini Gdl. 
— Daudinoti Gdl. 
— decoloratum Gdl. 
— eburneum Gdl, 
— echinus Wright. 
— fragile Gdl. 
— Humboldtianum Pfr. 
— hystrix Wright. 
— Jeannereti Pfr. 
— Jiguanense Pfr. 
— Lachneri Pfr. 
— majusculum Mor. 
— minimum Gdl. 
— perplicatum Gdl. 
— Pretrei d’Orb. 
— Sauvallei Gdl. 
— Storchi Pfr. 
266 — 
Choanopoma tractum Gdl. 
— Troscheli Pfr. 
— Yaterasense Pfr. 
— Yunquensis Pfr. 
Ctenopoma argutum Pfr. 
— bilabiatum d’Orb. 
— bufo Pfr. 
— coronatum Poey. 
— deficiens Gdl. 
— denegatum Poey. 
— echinatum Poey. 
— enode Poey. 
— Garridoianum Poey. 
— honestum Poey. 
— immersum Gdl. 
— nigrieulum Gdl. 
— nobilitatum Gdl. 
— nodulatum Poey. 
— perspectivum Gdl. 
— pulverulentum Wright. 
— rotundatum Poey. 
— rugulosum Pfr. 
— sculptum Gdl. 
— semicoronatum Gdl. 
— sordidum Gdl. 
— torquatum Gut. 
— undosum Gdl. 
Adamsiella chordata Gdl. 
Cyelostoma Heynemanni Pfr. 
— Rangelinum Poey. 
— rectum Gdl. 
— Roemeri Pfr. 
Diplopoma architeetonicum Pfr. 
Cistula Agassizi Pfr. 
— agrestis Gdl. 
— arctistria Pfr. 
— catenata Gould. 
— cumulata Pfr. 
— illustris Poey. 
— ineulta Poey. 
— interstitialis Gdl. 
