HELICINA §. 5. 
249 
41. rotelloidea Mighels. (Coll. 23.) I. 352. II. 189. III. 220. — 
Helicina JBronniana Phil. — Ins. Sandwich. 
42. H. Wloussoniana Pfr. 
T. depressa, sublenticularis , solidula, striatula et liris 
spiralibus confertis, subtus subtilioribus sculpta, alabastrina; 
spira convexa, yertice minuto, prominulo; sutura vix impressa; 
anfr. fere 5 planiusculi, ultimus peripheria subcarinatus, subtus 
convexior, medio callo parvulo circumscripto munitus; colu- 
mella brevissima, denticulo antrorsum desinens; apertura obli- 
qua, subtriangulari - semiovalis ; perist. simplex, rectum, acu- 
tum. — Operc.? — Diam. maj. min. 5, alt. 3 mill. 
(Coll. Nr. 24.) 
Helicina Moussoniana Pfr. in Malak. Bl. XIII. 1866. p. 89. 
Habitat Turk’s Island, Inagua Bahamensium. 
n 
* 
43. pictella Pfr. II. 189. III. 220. — Ins. Norfolk. 
44. exigua Pfr. I. 353. II. 189. III. 220. - — Honduras. 
45. humilis Hombr. & Jacq. f II. 189. III. 220. — Ins. Hogoleu 
Carolinarum. 
46 . H. mediana Gassies. + 
„Testa conica, obtuse carinata, transversim striatula, lon- 
gitudinaliter costulata, colore varians, lutea, fulva, alba, viri- 
dans, brunnea, irregulariter ad suturam fasciata, fasciis trigonis 
albidis; sutura linearis; apice nitido; anfractus 5 planati, ulti- 
mus magis valide; apertura ovato-trigona; peristoma acutum; 
columella abbreviata, callo umbilicali corneo, parum crasso; 
intus albo-roseo-fulva , nitida. — Operculum corneum, tenue, 
fuscum. — Diam. maj. 5, min. 4, alt. 3 mill. 44 (G.) 
Helicina mediana Gass, in Journ. Conch. XVIII. 1870. p. 145. 
Habitat in insula Art Novae Caledoniae (Montrouzier) et 
in insula Lifu (Deplanches, Lambert). 
47. H. parvula Pease, f 
„T. tenuiscula, orbicularis, oblique tenuistriata ; spira 
elevata; sutura bene impressa; anfr. 4, convexis, ultimo supra 
plano-depresso et angulato; callus basalis elevatus, tenuissime 
granulosus; labro tenui, ad angulum vix emarginato; aper- 
tura late lunaris; rufescens aut flavescens. — Diam. 3, alt. 
l‘ 1 / 2 mill. 44 (P.) 
