IIRfJX ^. 74. 225 



subconoideo-convexa, vertice obtusiusculo; anfr. 5 convexius- 

 culi, ultimus antice descendens, peripheria rotundatus, basi 

 planiusculus; umbilicus infundibuliformis, saturate castaneus; 

 apertura fere diagonalis, kinalo-subcircularis ; perist. nigrum, 

 marginibus conniventibus, late expansis, columellari dilatato, 

 subplano, patente. — Diam. maj. 34 V^, min. 28, alt. 22 mill. 

 (Mus. geol. Londin.) 



Helix Ynlei Forbes iii Voy. Rattlesnake. App. p. 377. t. 2. f. 6. 

 Ilabitat ad Port Molle Australiae borealis (Macgillivray). 



1278 H. Gaskoini Pfr. 



T. umbilicata, turbinato-depressa, solida, oblique rugato- 

 plicata, nitida, alba; spira conoideo-convexa, obtusa; anfr. 57^ 

 convexi, ultimus antice deflexus, medio carinatus, basi conve- 

 xiusculuS;, sublaevigatus; apertura perobliqua, lanceolato-ovalis; 

 perist. subincrassatum, marginibus callo umbilicum mediocrem, 

 pervium semioccultante junctis, supero breviter expanso, basali 

 reflexo. — Diam. maj, 31, min. 27, alt. 15 miU. (Mus. Cuming. ) 

 Helix Gaskoini Pfr. m Proc. Zool. Soc. 1851. Jul. 



— — Reeve Conch. ic. N. 2 8 6. t. 58. 

 Habitat in insula Ilaiti (Salle). 



1279. H. chlorozona Grateloup. 



T. umbilicata, conoideo-semiglobosa, solidula, oblique stria- 

 tula, parum nitens, rufo-castanea, zonis 3 luteis vel albis or- 

 nala; spira conoidea, obtusa; sutura late albo-fasciata; anfr. 

 vix 5 fere plani, ultimus obsolete angulalus, antice non de- 

 scendens, basi convexus; umbilicus infundibuliformis, pervius; 

 apertura diagonalis, truncato-ovalis; perist. simplex, breviter 

 expansum, marginibus subconniventibus, columellari superne 

 perdilatato. — Diam. maj. 31, min. 26, alt. 17 mill. (Mus. 

 Cuming.) 



Helix chlorozona Grat, Pfr. Mon. I, p. .331. N. 870. 



— — Reeve Conch. ic N. 563. t. 102. 



_ _ Chemn. ed. II. Helix N. 980. t. 148. f. 21. 22. 



Ilabitat Madagascar. 



1280. H. Vesconis IWorelet. -{• 



T. umbilicata, orbiculato-convexa, oblique costulato-striata, 

 castanea, zonis 3 albido-rufis, strictis cingulata, una suturali, 

 altera mediana, tertia aream umbilicarem circumscribente; 

 anfr. 5 sensim crescentes, ultimus basi convexus, antice pau- 

 lulum deflexus; apertura obliqua, ovalis, intus concolor; perist. 

 vix incrassatum, margine externo subrecto, columellari refle- 

 xiuscuio. — Diam. 30, alt. 20 mili. (M.; 



III. 1 3 



