HELIX &. 43. - 155 
Strialura ferrea Morse in Journ. Portl, soc. I. 1864. p. 47. 
f. 36— 40. Conf. Tryon Amer. journ. 
Conch, I. p. 72. 
Helio ferreo Pfr. Mon. Helic. V. p. 150. Nr. 724. 
Hyalina ferrea. Tryon*, in Amer. journ. Conch. If. 1866, p. 253. 
(o o Dein 
— — . Binn. V Bland Landsh. North-Am. I. p. 40. f. 59. 
Habitat in Statu Maine. 
* 
886. hilum (Hyalina) W'einl. & Mart. (Coll. 318.) V. 147. — Haiti. 
887. H. umbratilis (Zonites) Guppy. t 
«Testa minuta, depressa, profunde umbilicata, distincte 
el regulariter striata, diaphana, cornea vel albida; anfr. 5!/5,— 6, 
lente accrescentes; spira convexa, depressa; apertura lunaris; 
peristoma simplex. — Alt. 3/,, lat. 1'/5; apert. alt. !/5 mill.» (G.) 
Zoniles umbralilis Guppy in Ann. and Mag. n. h. 4^ ser, I. 
'4868. p. 440. 
Habitat in insula Trinidad Indiae occidentalis. 
* 
888. Antoni Pfr. |. 98. V. 149. — Panama. 
889. Hondana Pír. IV. 84. V. 149. — Nova Granada. 
* * 
* 
890. limatula WVVard. (Coll.319.) I. 143. IV. 85. V. 149. — Jlyalina 
limatula Mart., Binn. Amer. landsh. p. 36. f. 48. — Pseudo— 
hyalina. limatula Tryon Amer. journ. conch. 1l. p. 264. t. 4. f. 65. 
— Zoniles limatulus Bland & Binn, Proc. Ac. Philad. 1873. p. 240. 
— Síatus Uniti. 
891. capsella Gould. (Coll. 320.) III. 107 (rotula Gould). IV. 85. V. 149. 
— Zoniles placentula  Shuttl. — Helix placentula Pfr. MI. 634. 
IV. 81. — Hyalina placentula Mart. — Hyalina capsella Tryon 
Amer. journ. conch. I|. p. 252. t. 3. f. 20; (Mesomphix) Binn. 
Amer. landsh. p. 46. f. 72. — Tennessee. 
892. H. Tehuantepecensis (Zonites) Crossc & Fischer. Jj 
«Testa umbilicata, subdepressa, tenuis, nitida, sublaevi- 
gata, sub lente striatula, pallide viridulo-albida, hyalina; spira 
vix prominula; sutura impressa; anfr. 4 convexiusculo - plani, 
*) «Whorls 3, not shining, steel grey; last whorl rapidly enlarging ; 
aperture very large, well rounded; spire slightly elevated; suture distinct, 
deeply channeled near the apex; umbilicus small and abrupt, exhibiting 
all the volutions; periostraca minutely marked with fine revolving lines. — 
Diam. 2,5, height 1,25 mill.» (T.) 
