352 
HELICINA §. 4. 
591 28. Eft. Doiiiiiiicensis Pfr. 
T. globoso-conica, solidula, concen trice confertim striata, 
parum nitida , albida , luteo - vel fulvo - zonata ; spira conica, 
acuta; anfr. 6 planiusculi, sutura profunda juncti, ultimus con- 
Vexior, vix descendens; columella brevissima, basi denticulata, 
callum emittens tenuem, vix circumscriptum; apertura parum 
obliqua, semiovalis; perist. acutum, subrectum. — Operc. 
tenue , testaceum , carneum , margine columellari elevato. — 
Diam. maj. 6 V s , min. 5 3 / 4 , alt. 5 mill. (Mus. Cuming.) 
Helicina Dominicensis Pfr. in Proc. Zool. Soc. 1850. 
Habitat in insula Haiti (Salle). 
592 29. Iff. rotelloiilea Migliels. 
T. conica, tenuis, sublaevigata, nitida, olivaceo - flavida, 
flammis rufis superne picta; spira conica, obtusiuscula ; anfr. 5 
convexi, discreti, ultimus medio subangulatus , basi vix con- 
vexus; apertura parum obliqua, sub triangularis, aeque alta et 
lata ; columella subverticalis , cum margine basali peristomatis 
simplicis , acuti angulum fere rectum formans ; callus basalis 
tenuissimus. — Operc. tenue, testaceum. — Diam. maj. 57 a , 
min. 5, alt. 4 mill. (Coll. Nr. 34.) 
Helicina rotelloidea Migh. in Proc. Bost. Soc. 1845. p. 19. *) 
— — Chemn. ed. II. N. 21. p. 23. t. 3. f. 40- 43. 
— Bronniana Phil in Zeitschr. f. Malak. 1847. p. 124. **) 
Habitat in insulis Sandwich., Oahu (Migh.). 
593 30. Iff. laciitiosa JVffigftiels* 
T. subconica, tenuiuscula, striatula, vix nitidula, cinna- 
momea, irregulariter albido strigata et maculata; spira conoi- 
dea, acutiuscula; anfr. 4 — 4*/ a vix convexiusculi, ultimus peri- 
pheria lineis 1 — 3 subelevatis signatus , basi planiusculus ; 
columella brevissima, callum nitidum, diffusum retrorsum 
emittens; apertura obliqua, subtriangulari - semiovalis ; perist. 
*) Shell orbicular, low conical, convex at the base , sometimes reddish 
brown, sometimes greenish, with obscure light spots, surface smooth; whorls 
about 3'/ 2 , convex; aperture semilunate ; lip simple, acute. — Diam. from l / 10 
to */ 35 inch. (Migh. 1. c.) 
**) T. minima, conica, laevissima, flavida, flammis rufis picta ; anfracti- 
bus superius planis , inferius convexis , discretis , ultimo medio rotundato- 
angulato ; apertura semilunari aeque alta ac lata ; labro simplicissimo ; labio 
callo tenui obtecto ; operculo calcareo. — Alt. 2"' ; diam. 2 , / a " < . (Phil. 1. c.) 
