CISTULA §. 1. 141 



lato-striata, superne isabellina, corneo indistincte variegata, 

 siibtus albida; spira parum elevata, vertice mucronulato; anfr. 

 4^2 convexiusculi, ultimus teres, circa umbilicum filo obsoleto 

 vel nullo munitus; apertura obliqua, ovali-rotundata ; perist. 

 simplex , breviter adnatum , margine dextro ad inscrtionem 

 subsinuato, duplicato-producto, tuni expansiusculo, sinistro 

 breviter reflexo. — Operc. planum, albidum. — Diam. maj. 

 13, min. 10, alt. G^/o mill, Ap. fere 6 mill. longa, (Coll. 

 Nr. 390.) 



Cistula arctisirkt Pfr. in Malak. Bl. X. 1863. p. 195. 

 Habitat in parte orientali insulae Cubae. 



6. C tnterstitialis Ciuncllaclt. 876. 



T. umbilicata, globoso-turbinata, tenuis, radiatim conferte 

 plicatula et costulis filiformibus remotioribus sculpta, sub- 

 diaphana, vix nitidula, cerea vel flavido-rubella ; spira conica, 

 acutiuscula; sutura subtiliter denticulata; anfr. 41/.2 modice 

 convexi, ultimus antice sublonge solutus, descendens, circa 

 umbilicum mediocrem obtuse unicarinatus ; apertura obliqua, 

 subcircularis ; perist. duplex : internum vix porrectum, externum 

 latere supero et dextro breviter expansum. — Operc. praece- 

 dentis. — Diam. maj. 10 — 11, min. 8 — 9, alt. 8 — 9 mill. 

 (Coll, Nr. 391.) 



Cydostoma interslitialc Gundl. in litt. 



Cistida interstilialis Pfr. in Malak. Bl. VI. 1859. p. 74. 

 /S. Anfractu ultimo breviter soluto, vertice rubenti-corneo. 

 Habitat in insula Cuba : Yateras (Gundl.), Cayo del Rey 

 (Wright). 



7. C. eumuSata Pfr. 877. 



T. anguste unibiHcata, conoidea, solidula, plicis subcon- 

 fertis, plus minusve elevatis, sculpta, parum nitens, isabelHna; 

 spira conoidea, vertice obtusulo ; anfr, 4% convexi, summi 

 laevigati, rcHqui ad suturam subcarinati, ultimus non solutus, 

 circa umbiHcum Hris 2 fiHformibus munitus ; apertura obHqua, 

 ovaH-1'otundata; perist, duplex : internum vix prominens, ex- 

 ternum breviter patens. — Operc. planum, — Diam. maj. 9, 

 min. 72/3, alt. 7 miU. (CoH. Nr. 392,) 



Cistida cumxdata Pfr. in Malak, Bl. X. 1863. p. 194. 



Habitat prope Baracoa insulae Cubae (Wrlght). 



