940 CYCLOSTOMUS $. 11. 
$i d 
394 81. €. Rangelinus Pocy. 
395 
T. perforata, conico-turrita, breviter truncata, tenuiuscula, 
lineis elevatis spiralibus et confertioribus longitudinalibus (in 
anfr. ultimo obsoletioribus) sculpta, diaphana, lutescenti-cornea, 
lineis castaneis spiralibus permultis, hine inde in fascias con- 
junctis picta, interdum omnino lutescens vel vinosa; sutura 
crenis validis albis fasciculatis munita; anfr. superst. 5 con- 
vexi, ultimus rotundatus; apertura subverticalis, ovali-rotunda; 
perist. duplex : internum. continuum, breviter porrectum, ex- 
pansiuseulum , externum breviter patens, superne subauricula- 
tum, infra anfr. penultimum excisum. — Operc. C. costulati 
Z. — Long. 22'/,, diam. 12 mill Ap. fere 8 mill. longa, 
6/*, lata. (Coll. Nr. 167.) 
Cuyclostoma  Rtangelinum Poey Memorias hist. nat. Cuba I. t. 8. f. 13—19. 
ns — Chemn. ed. II. N. 388. t. 47. f. 17—19. 
Cyclostomus Rangelinus Pfr. Consp. N. 350 a. 
Habitat in insula Cuba (Poey). 
82. €. retrorsus Adams. 
T. subperforata, ovato-oblonga, tenuis, truncata, lineis 
spiralibus et costis longitudinalibus confertis arcte clathrata, 
asperata, non nitens, palhde cornea, rufo irregulariter punctata 
et strigata; sutura subcanahculata, denticulata; anfr. superst. 
4 ventrosi, ultümus non solutus, teres, circa perforationem 
lris 4—5  fortioribus munitus; apertura verticalis, circularis; 
perist. multiplex, concentrice striatum, album, fornicatim late 
retroflexum, canalem posteriorem formans, ad anfractum pen- 
ultimum excisum, superne angulatum. —  Operc. terminale, 
testaceum, planum, canaliculato -spiratum , nucleo vix excen- 
trico. — Long. 16—17, diam. 9 mill. Ap. 5, c. perist. 8 mill. 
longa. (Coll. Nr. 168.) 
Cyclostoma retrorsum dams Contrib. to Conch. N. 6. p. 91. *) 
more distant on the upper whorls; spire with moderately convex outlines; 
apex truncate with the loss of two or three whorls; about three and one- 
half whorls remaining, quite convex, with a rather deep suture; last whorl 
a little detached from. the preceding near the aperture; aperture like that 
of C. Wilkinson??, but smaller, with the outer peritreme a little wider pro- 
portionally and without spots; umbilieus very narrow, but extending through. 
Mean divergence about 25?; length 0,26; greatest breadth 0,15; least breadth 
0,11 inch. (Adams l. c.) 
*; Shell subovate: horn colour, with small irregular flames of brown, 
