HELIX §. 18. 
85 
§. 18 *). 
20.L H. Monrovia Rang. 
T. uiiihilicnlii, turbinata, lenuiuscula, alliida, strigis vireiui- 
bus irrcgulariter ornata, superne regulariter et confcrtim striata; 
spira elevata, obtusiuscula; anfr. SYa convexiusculi, ultimus subtus 
laevigatus, nitidus, subpianulalus ; columella subvcrticalis, stric- 
tiuscula; apertura subtetragona, intus alba; perist. simplex, acu- 
tum, margine columellari dilatato, reflexo, umbilicum mediocrem, 
pervium partim occultante. — Diam. maj. 20, miu. 18, ait. 14- — 15 
milL (Mus. Cuming.) 
Helix Monrovia Bang ia Ann. tl. sc. nat. XXIV. p. 10. t. 3. f. 3. 
— — Pfr. in Phil. Icon. IT. I I. p. 83. t. 7. f. 9. 
Habitat in Africa : Liberia. 
204. H. tiara Mighels. 
T. depresse turbinata, flavida, strigis fulguralis, saturate 
brunneis* ornata; umbilicus latus et profundus;- striae incrementi 
riidiusculae ; anfr. 5 — 6 convexi ; apertura lunato - circularis ; 
labrum simplex, tenue. — Diam, circa Ya". (M.) 
Helix tiara Migliels in Bosl. Proc. I 8 43. p. I 9. 
Habitat in insula Sandwicli. Kauai. 
204^. H. tumulus Gould. -{* 
T. parva, solida^ flavida, orbiculalo-pyrainidata, basi subpla- 
nulala, umbilico modico perforata; spira elevata, conico-rotuu- 
data; anfr. 6 — 7 convexiusculi, striis perobliquis exarati, ultimus 
obluse ad peripheriarn angulatus, prope aperturam compressus; 
apertura parva, transversa, lunata; perist. simplex. — Long. ys, 
ait. Vao poli. (G.) 
Helix tumulus Gould 1 8 46. Expeti, shells p. 22. 
Habitat in insulis Feejee. 
Obs. «Persimilis H. pyraniitlylae , sed mimis olevala ot ajiiue magi.s 
rolumlala.» 
205. H. Parag^uayana Pfr. 
T. orbiculata, umbilicata, laevigala, tenuis, diaphana, succi- 
nea; spira elevata, apice obtusa; anfr. 6; apertura rotunda, semi- 
lunaris; labrum tenue, acutum. — Diam. 3, all. 3 mill. (0.^ 
Helix Paraguayana Pfr. Symb. II. p. 93. 
— elevata Orh, synops. p. 6. Ncc Say. 
— — Orb. voy, p. 234. t. 28. f. 3 — H. 
Habitat in Paraguay, Monlevideo. 
‘) Kum forsaa 11. Foullioyi (Nr. 7b.) huic sectioni ascribcuiln? 
