HELIX 8. 34. 165 
849. Hi. polycycla Morelet. 4. 
«Testa latissime umbilicata, discoidea, polygyrata, utrinque 
concava, confertim striata, parum nitens, cereo-cornea; anfr. 7 
convexi, sutura profunda discreti, lente crescentes; ultimus sub- 
depressus, non descendens; umbilicus late concavus; apertura 
diagonalis, oblique semilunaris; peristoma simplex, rectum, mar- 
gine supero sinuato, columellari regulariter arcuato. — Diam. 
maj. 15, min. 13, alt. 4 mill.» (M.) 
Heli polycycla Mor. in Journ. Conch. VIIL 41860. p. 3723; 
Sér. conch. Livr. IIl. 1863. 
Habitat in intima Peruviae regione (Angrand). 
* 
850. (612. tessellata IMühlf. (Coll. Nr. 353.) Stephanoda A7?. 88. — 
H. contortula Fér. — Juan Fernandez. (1. 417.) 
851. H. Montrouzieri Souverbie. T 
«Testa profunde latissimeque perumbilicata, subconoideo- 
orbiculata, depressa, planorboidea, biconcava, tenuis, subdia- 
phana, pallide cornea, oblique et minutissime unduloso - stria- 
tula; spira perdepressa, medio profunde immersa, perinfundi- 
bularis, apice laevigato; anfr. S—8!/, angustissimi, vix con- 
vexiusculi, omnes, infra supraque in infundibulum immersi, 
scalares, carinati (carina plicato-corrugata extus intusque mar- 
ginata), ab anfractu praecedenti sutura profunde impressa 
separati; apertura obliqua, teretiuscula, subfissurata (alt. & mill., 
lat. vix 7/ mill), inferne latior quam superne. — Perist. sim- 
plex, unduloso -sinuatum, marginibus remotis, callo arcuato 
(tantum duplex) a margine dextro remoto junctis. — Diam. 
maj. 8, min. 7!/, alt. & mill.» (S.) 
Helix Monirouzieri Souv. in Journ. Conch. VIL 1858. p. 63. 
t. 8. f. 7. (Malak. Bl. 1859. p. 9.) 
—  biconcava Gass. mss. (ib. p. 68.) 
Habitat in insula Art Novae Caledoniae (P. Montrouzier). 
Obs. Conf. H. Mariei Crosse Nr. 1335. 
852. H. xanthochroa Crosse. j| 
« T. late umbilicata, depressa, planorbiformis, laevis, lutea; 
apice concavo, nigricante; anfr. 7 lente accrescentes, primi 2 
concavi, sequentes planiusculi, sutura profunda discreti, ultimus 
non ascendens (descendens?), rotundatus, subtus planus; 
umbilieus late pervius; apertura lunaris, stricta; peristoma 
simplex, acutum. —- Diam. maj 3'5, min. 3, alt 1, 
mill.» (Cr.) | 
