194 
HELICINA §. 10. 
78. H, retracta Poey. 
T. globoso-conica, tenuis, laevigata, pellucida, nitida, 
carneo-rufa; spira conoidea, acutiuscula; sutura vix impressa, 
plerumque albo-marginata ; anfr. 5 , superi convexiusculi, ulti- 
mus magnus , rotundatus; columella callosa, verticaliter ab 
anfr. penultimo descendens , desinens in denticulum, callum 
retrorsum emittens suturatiorem , nitidum , circumscriptum 5 
apertura vix obliqua , triangulari-semiovalis ; perist. simplex’ 
brevissime expansum, margine supero prope insertionem, ba- 
sali juxta columellam sinuoso. — . Operc. tenue, fusco-purpu- 
reum. — Diam. maj. 10, min. 8, alt. 7 mill. (Coll. Nr. 70 .) 
Helicina retracta Poey Memor. I. p. lie. 120. t. 12. f. 22—26. 
— — Pfr . in Malak. Bl. I. 1854. p. 103. III. 1856. p. 146. 
Habitat Cayajabos insulae Cubae (Don Nazareno de la Paz). 
Obs. Affinis H. rotundae Orb., spira parvula facile distinguenda. 
79. bulla Pfr. (Proc. 1852. p. 145. — Gray Phan. 
p. 264. — Ad. Gen. p. 302.) .... . Mon n 364 
80. pellucida Sow. f (Gray Phan. p. 264. — Ad ' P ’ 
Gen. p. 302.) ............. _ . 365 . 
81 . XI. sphaeroldea Pfr. 
T. subglobosa, solidula, sub lente minutissime striata, pa- 
rum nitens , pallide virenti-straminea • spira rotundata, sub- 
acuminata; anfr. 4 J / a convexiusculi, ultimus magnus, infra 
medium obsoletissime angulatus; columella albo-callosa, rece- 
dens, basi indistincte dentata, callum emittens diffusum ; aper- 
tura diagonalis , late semiovalis ; perist. simplex, brevissime 
expansum, margine basali cum columella angulum subacutum 
formante. — Operc.? — Diam. maj. 7 , min. 6, alt. 5 V a mill. 
(Mus. Cuming.) 1 
Helicina sphaeridea Pfr. in Proc. Zool. Soc. 1855. p. 102. 
Habitat „Loyalty Island 44 Oceani Australici (Macgillivray). 
82. H. eoneinna Ciuiidlach. 
T. conico-globosa , solidula, laevigata, albida vel pallide 
rosea, saepe fasciis 1 — 2 rubris ornata ; spira convexo-conoidea, 
apice flavo vel igneo mucronulata; anfr. 5 l / 2 planiusculi, ulti- 
mus m flatus, antice breviter deflexus et subconstrictus ; colu- 
mella brevis , callum emittens latiusculum luteum vel auran- 
tiacum , ^ terminata in denticulum acutum ; apertura obliqua, 
late semiovalis, intus nitide flava vel ignea; perist. brevissime 
