— 178 - 



leviter angulato-canaliculata, peristomate expanso, vix 



incrassatulo. 

 Alt. 19, diam. max. 3,5 ram. 

 Hab. Sanssouci in parte meridionali insulae Haiti. 



3. Macroceramus costatus n. 



Testa anguste perforata, conoidea, lutescenti-albida, castaneo 

 vel cinereo-fusco profuse raaculata et tincta, costis 

 distinctis irregularibus sculpta, inter costas subobsolete 

 spiraliter striata. Anfractus 12 — 13 regulariter cres- 

 centes, convexiusculi, sutura impressa subirregulari 

 discreti, ultimus vix attenuatus, basi carina prominente, 

 fascia fusca insigni, cinctus. Apertura ovato-circularis, 

 supra leviter truncato-emarginata, subverticalis ; peri- 

 Stoma Simplex tenue, extus strictum, infra et ad basin 

 expansum et leviter reflexiusculum, marginibus distan- 

 tibus, coluraellari reflexo, appresso. 



Alt. 14, diam. anfr. ult. 5 mm. 



Hab, Gonaives insulae Haiti. 



4. Macroceramus nitidulus n. 



Testa angustissime rimato-perforata, elongato-conica, tenuis, 

 nitidula, oblique costato-striata , costis vix prominulis, 

 interstitiis malleatis, albida, inter costas obsolete fulvo 

 signata strigisque interruptis fuscis regulariter picta. 

 Anfractus 10 convexiusculi regulariter crescentes, su- 

 tura lineari discreti, ultimus vix major, basi obsolete 

 angulatus et infra angulum fascia interrupta fusca 

 cinctus. Apertura parva, subverticalis, lunato-ovalis, 

 peristomate simplici, marginibus distantibus, columellari 

 vix reflexo. 



Alt. 10, diam. 4,5 mm. 



Hab. prope Port-au-Prince insulae Haiti. 



