400 HELICINA $. 11. 
138. ES. ecomeentrien E'fr. 
T. depresse trochiformis, tenuiuseula, stris longitudinalibus 
et obliquis sub lente minutissime sculpta, lineis concentricis 
elevatis utrinque munita, acute carinata, nitidula, carneo-fusca, 
albido variegata; spira conoidea, subpapillata; anfr. 4'/ vix 
convexiusculi, ultimus utrinque convexior; apertura obliqua, 
subsecuriformis, latior quam alta: columella subrimata, breviter 
arcuata, basi incrassata in callum album subcircumscriptum 
retrorsum dilatata; perist. simplex, breviter expansum, margine 
basali immediate in columellam continuato. —  Operc. tenue, 
castaneum. — Diam. maj. 10, min. 8, alt. vix 6 mill. (Coll. 
Ng 12.) 
Helicina conventriea. Pfr. in Proc. Zool. Soc. 1848. p. 129. 
-- -— Chemn. ed. IL. N./83. ;p. 61..1-. 7. (141,28. 99. 
B. Spira paulo magis elevata, diam. maj. 9, min. 77?/, alt. 6 mill. (Mus. 
Cuming.) | 
y. Major, lineis spiralibus elevatis infra carinam obsoletis; diam. maj. 12!'/,, 
min. 10'/A, alt. 7'/, mill. (Mus. Cuming.) 
Helicina concentrica var. Chemn. l. c. t. 8. f. 18. 19. 
9. Major, carina compressiore, perist. subincrassato, ad carinam subrostrato ; 
diam. maj. fere 15, min. 12'/4, alt. 9 mill. (Mus. Cuming.) 
Habitat in Venezuela; var. 8 in Nova Granada (Lattre), var. 
y Mirador reipublicae Mexicanae (Galeottü), var. ó Caraccas 
(Salle). 
702 139. Hi. enrinata Orbigny. 
T. orbiculato-conoidea, tenuiuseula, concentriee confertim 
striata et lirata, diaphana, mnitidula, citrina; spira conoidea, 
acuta; anfr. 4'/, convexiusculi, ultimus medio carinatus, antice 
non descendens, basi paulo convexior; apertura obliqua, sub- 
triangularis, alüor quam lata; columella brevissima, verticalis, 
basi subnodosa, callum tenuem, circumscriptum retrorsum 
emittens; perist. album, breviter expansum. — Diam. maj. 
1!/, min. 6?/4, alt. 4?/, mill. (Mus. Cuming.) 
Helicina carinata Orb. Synops. p. 28. *) 
-— — Orb. Voy. Amér. p. 360. t. 46. f. 6—9. 
— - Som. 'Thes. N. 56. p. 11. t. 3. f. 96. (nec t. 2. f. 60.) **) 
— -— Chemn, ed. II. 'N. 84. p. 62. t. 7. f. 22. 93. 
Habitat in provincia Yungasensi reipublicae Bolivianae. 
*) T. orbiculato-conica, depressa, subcrassa, carinata, striata, flava; 
spira conica, anfr. 5; apertura triangulari; columella angulosa, crassa; 
labro margine crassiore reflexo. — Alt. 7, lat. 10 mill. (Orb. l. c.) 
**) T. forma AH. Candeanae simili, spiraliter obsolete distanter striata ; 
