HELIX &. 25. 26. 115 
531. scorpio Gould. 4 I. 431. III. 272. IV. 54. V. 111. — Helicarion 
scorpio H. $ A. Ad. — Orpiella scorpio H. & A. Ad. — Na- 
nina scorpio Mart. — ns. Feejee. 
&. 206. 
532. sculptilis Bland. 4 V. 4103. — IHyalina sculptilis Tryow Amer. 
journ. conch. IL p.249. t. 3. f. 48. — Zonites (Omphalina) sculp— 
tilis Binn. Amer. landsh. p. 290. f. 522. — Carolina septentrionalis. 
533. effusa Pífr. (Coll 171.) V. 105. — Haiti. 
534. inornata Say. (Coll. 172.) I. 84. IV. 48. V. 105. — ZIyalina in— 
ornata Mart., Tryon Amer. journ. conch. II. p. 249. t. 4. f. 92; 
(Mesomphix) Pütel Cat. p. 86. —  Zonites (Omphalina) inornata 
Binn. Amer. landsh. p. 289. f. 518. 519. — Ohio. 
535. demissa Binn. (Coll. 173.) L. 58. IV. 48. V. 4105. — Mesomphix 
demissa Tryon Amer. journ. conch. IL. p. 255. t. 4, f. 35. — 
Hyalina. demissa Alb., Binn. Amer. landsh. p. 45. f. 74; (Mesom- 
phix) Pátel Cat. p. 86. — Status Uniti. 
536. ptychoraphe (Hyalina) Weinl. & Mart. 4 V. 105. — Ilaiti. 
5831. incisa Pífr. (Coll. 174.) V. 107. — Barbados. 
538. Guildingi (Stenopus?) Bland. 4 V. 107. — Zonites Guil- 
dingi Guppy in Ann. and Mag. n. h. 4th. ser. I. 4868. p. 439: 
ins. Trinidad. Conf. Bland in Amer. journ. conch. IV. p. 480. 
— Sienopus Guildingi Mart. Binn. Venez. p. 10. — Venezuela. 
539. albicans Pfr. IIl 64. IV. 50. V. 107. — Jamaica. 
540. indentata Say. (Coll. 175.) I. 59. III. 65. IV. 51. V. 408. — 
Ij alina indentata Mart., Tryon in Amer. journ. conch. II. p. 246. 
t. 3. f. 44. — Binn. Amer. landsh. p. 35. f. 44. — Status Uniti. 
DA1. H. chersinella Dall. 4 
«Testa minuta, subelevata, laevigata, exceptis striis incre- 
menti interdum impressis; umbilieus minute perforatus; aper- 
tura semilunaris, leviter obliqua; anfr. rotundi, 4!/,—5; sutura 
impressa, non profunda; labrum neque incrassatum neque re- 
flexum. — Diam. 0,14, alt. 0,09 poll.» (D. angl.) 
Helia chersinella (Conulus) Dall in Tryon Amer. journ. Conch. II. 
1866. p. 328. t. 24, f. 4. 
Conulus chersinella Tryon ibid. III. 1867. p. 162. t, 14. f. 33—35. 
Hyalina. chersinella Binn. & Bland Landsh. North-Am. I. p. 43. 
T2651. 
Habitat «Big Trees, Calaveras Co.» Californiae. 
Obs. Species affinis H. chersinae Say et indentatae Say; differt ab 
hac numero majore anfractuum, statura multo minore et magnitudine re- 
lativa anfractus ultimi. 
* 
542. mediocris Pfr. IV. 5!. V. 108. — Nova Granada. 
543. fulvoidea Morelet. -- Il. 66. V. 110. —  Zonites (Hyalinia) 
fulvoideus Cr. $' F. Moll. terr. Mex. p. 177. — Ins. Carmen. 
&* 
