346 HELICINA 8. 2. 
sanguinea; spira brevis, conoidea, acutiuscula; anfr. 4!/, plani, 
ultimus utrinque convexiusculus, medio subangulatus; apertura 
obliqua, subtriangularis, altior quam lata; columella basi an- 
trorsum dentata, calum tenuem,  semicireularem retrorsum 
emittens; perist. rectum, intus sublabiatum, margine basali 
strictüusculo. — Operc.? — Diam. maj. 10'4, min. 9, alt. 
6 mill. (Mus. Cuming.) 
Helicina sanguinca Pfr. in Proc. Zool. Soc. 1848. p. 124. 
— — Chemn. ed. II. N. 10. p. 17. t. 8. f. 20. 21. 
Habitat Honduras (Dyson). 
571 14. E. striatula Sowerby. 
T. subsemiglobosa, solidiuscula, oblique striatula, diaphana, 
vix nitidula, fuscescenti-rufa; spira convexa, mucronulata; 
sutura linearis, submarginata; anfr. 6 planiuscuhi, ultimus vix 
convexior; columella brevissima, retrorsum in callum basalem 
tenuissimum abiens; apertura obliqua, subtriangulari - lunaris ; 
perist. rectum, incrassatum, ad columellam obsolete tnbercu- 
hferum. — Operc.? — Diam. maj. 8?/, min. 7?/, alt. 5 mill. 
(Mus. Cuming.) 
Helicina striatula Som. in Proc. Zool. Soc. 1842. p. 6. *) 
— — Som. 'Thes. N. 638p. 3. t. 1. f£. 43. 
—- — (Chemn. ed. IL. N, 11. p..18.,1..8. f. 39. 33. 
Habitat in insula Martinique. 
Obs. Nomen forsan ob H. síriatulam Pot. et Mich., mihi incognitam, 
mutandum. 
578 15. M. occulta Say. 
T. orbiculata-conoidea, striata, crassa, sordide alba; spira 
conoidea, acuminata; anfr. 5'/, planiusculi, carinati, ultimus 
convexior, obtuse angulatus, antice paululum descendens; 
apertura perobliqua, integra, obtuse triangularis; columella 
subnulla, retrorsum callum basalem diffusum formans; perist. 
rectum, obtusum, intus incrassatum. —  Operc.? — Diam. 
maj. 7, min. 6'A, vlt. 4'/, mill. (Coll. Nr. 27.) 
*) T. subdepressa, concentrice substriata, fulvo-rufescente; apertura sub- 
quadrata, margine albo, crasso, reflexo, integro, subsinuato, postice subde- 
presso. — Alt. 0,23, lat. 0,30 poll. — Hab.? — The margin of the aper- 
fure in this species is slightly lobed, and sinuous above and below. (Sow. l.c.) 
