150 HELIX $. 49. 43. 
anfr. 31/5, ultimus acerescens, convexus, superne ad aperturam 
leviter depressus, basi convexus, striis indistinetis rubello- 
corneis notatus; umbilicus mediocris; apertura fere diagonalis, 
leviter ovato-lunata; perist. tenue, simplex, marginibus appro- 
ximatis, columellari superne levissime dilatato. — Diam. maj. 0,15, 
min. 0,11, alt. 0,06 poll.» (B. angl.) 
Helia: Nelsonensis (Hyalina) Braz. in Proc. Zool. Soc. 1870. 
p. 661. 
Habitat Mount Nelson Tasmaniae (W. F. Petterd ). 
846. H. decreta Gassies. T 
« Testa minima, late umbilicata, depressa, lenticularis, sub- 
üliter striata, pallide cornea sub epidermide luteo-fusca, parum 
nitente, maculis et fasciis destituta. Spira anfractibus 5 sat 
convexis, pressis, regulariter accrescentibus composita; anfr. 
ultimus leviter descendens; apex planus, nitide flavus; sutura 
linearis, parum profunda; apertura semilunaris, parte superiore 
angulosa, inferiore rotundata et descendens; perist. simplex. — 
Diam. max. 2, min. 4!/;, alt. 1 mill.» (Ex descript. 1873.) 
Helix decreta Gass. Faune Nouv. Caléd. IL. 1871. p. 180; 
Journ. Conch. XXI. 1873. p. 47. t. 2. f. 3. 
Habitat in insula Nou Novae Caledoniae (Lambert); subfossilis 
in insulis Koutoumo et Pinuum. 
Obs. Similis H. vel(ulae Gass., sed minor, anfractibus 5, ultimo ma- 
jore vix striato. 
&. 43. 
847. fuliginosa Griff. (Coll. 298.) I. 88. HI. 83. IV. 74. V. 440. 471. 
— Omphalina cuprea Rafin. Enum. and Acc. 3; ed. Binn. 9 Tryon 
p. 67. — Zonites [uliginosa Ad., (Omphalina) Binn. Amer. landsh. 
p.285. f. 506. 510. — Zonites (Moreletia) fuliginosus Crosse y Fisch. 
Moll. terr. Mex. p.164: Orizaba reipubl. mexicanae. — ZJlyalina 
fuliginosa  Tryon Amer. journ. conch. lI. p. 248. t. 3. f. 16. — 
Mesomphix Pütel Cat. p. 86. — Pennsylvania, Ohio. 
848. Igopnodes Binn. (Coll. 299.) IV. 346. V. 141. — Hyalina kopno— 
des Tryon Amer. journ. conch. II. p. 248. t. 4. f. 24. — Mesom- 
phix Pütel Cat. p. 86. —  Zonites (Omphalina) kopnodes Binn. 
Amer. landsh. p. 284. f. 507. 508. — Alabama, Georgia, Tennessee. 
819. caduca Pfr. (Coll. 300.) I. 98. IV. 74. V. 4144. — Hyalina caduca 
Mart., Tryon Amer. journ. conch. II. p. 288. t. 3. f. 45. — 
Amonoceras Pütel Cat. p. 86. — Zonites (Omphalina) caduca Binn. 
Amer. landsh. p. 286. f. 513. — Zonites (Moreletia) caducus Crosse 
& Fisch. Moll. terr. Mex. p. 463. t. 7. f. 3. — Mexico, Texas. 
350. omalomorpha Orb. 1.409. IIL 104. IV. 74. V. 141. — Hya- 
lina omalomorpha, Alb. — Bolivia. 
