45 



26. Cyclostoma mini u m Gundlach. 



Poe?/ Ind. p, 4. nr. 464. — T. rimato-perforata , tur- 

 rita, liris oonfertis cincta et striis elevatis levioribus decus- 

 satula, miiiiata, interdum albido variegata vel lineis fuscis 

 signata; spira subregulariter attenuata, integra, acutiuscula; 

 sutura conferte albo-denticulata; anfr;. 7 convexi, ultimus 

 antice solutus, circa umbilicum liris fortioribus munitus; 

 apertura vertiealis, ovali-circularis ; perist. duplex : internum 

 vix porrectum , externum sublate rectangule patcus , con- 

 centrice lamcllatiun , superne auriculatum, juxta anfr. pro- 

 ximum fere excisum. — Operc. coueavura, rnarginibus an- 

 fractuum late elevatis. — Long. 15 - 16, diam. 7 mill. Ap. 

 excl. perist. 4" 2 / 3 mill. longa, 4 lata. 



Wieder eine schöne, zu Choanopoma gehörige Art 

 von der an Novitäten so reichen Lokalität Guisa. 



27. Cyclostoma tractum Gundlach. 



Poet/ Ind. p. 4. nr. 346. — T. vix perforata, oblongo- 

 turrita, tenuiuscula, liris obtusis et striis elevatis confertio- 

 ribus plathrata, parum nitens, corneo-albida, punetis rufis 

 subfasciata et strigata; spira sursum parum attenuata, trun- 

 cata; sutura confertissime denticulata; anfr. superst. fere 5 

 modice convexi, ultimus non solutus; apertura verticalis, 

 subovalis ; perist. duplex : internum breviter porrectum, ex- 

 ternum subaequalitcr patens, concentrice striatum, superne 

 subauriculatum, margine sinistro undulato. — Operc. prae- 

 ced. — Long. 16, diam. 6 ' / 2 mill. Ap. 4 1 / 2 mill. longa, 

 3 2 / 3 lata. 



Ebenfalls von Guisa, gleichfalls zu Choanopoma ge- 

 hörig. 



28. Cyclostoma luridum Gundlach. 



Poey Ind. p. 4. nr. 366. — T. vix perforata, ovato- 

 turrita, solidula, liris obtusis et costulis confertioribus cla- 

 thrata, parum nitens, albido-cornea, lineis rufis strigatim 

 interruptis cincta; spira sursum sensim attenuata, late trun- 

 cata; sutura denticulis albis acutis munita; anfr. supei'st. 



