HELIX $8. 59. 201 
dermide in lineis elevatis radiantibus disposita, ad peripheriam 
in ciliis modicis producta; anfract. 6, planis, ultimo ad peri- 
pheriam acute angulato, basi convexo; apertura obliqua, lunata; 
peristomate recto, acuto. — Lat. 6, alt. 3 lin.» (A.) 
Helir selocincta (Plectotropis) 4. Adams in Ann. and Mag. 
n. h. 4th. ser. I. 4868. p. 465. 
Habitat Sado, Awa-Sima Japoniae. 
Obs. «Affinis H. ciliosae Pfr., sed magis conica et epidermis ad pe- 
ripheriam longius ciliata.» 
1219. H. percompressa W. Hlanford. | 
«Testa aperte et pervie umbilicata, perdepressa, lenticu- 
laris, tenuis, cornea, acultissime carinata, nitida, striis incre- 
menti oblique curvatis notata. Spira fere plana, apice vix ex- 
.serto, sutura impressa marginata. Anfr. 5, convexi, ultimus 
carina mediana acuta utrinque compressa instructus, circa um- 
bilieum tumidior, non descendens, Apertura parum obliqua, 
securiformis; peristoma tenue, rectum.—Diam. maj. 412, min. 101/5, 
axis 3 mill.» (Bl.) 
Helio percompressa (Sivella) W. Blanf. in Proc. Zool. Soc. 
1869. p. 448. 
Habitat Bhamo in regno Avae (J. Anderson). 
Obs. «Affinis H. sani Bens. et H. castrae Bens., sed utraque de- 
pressior.» 
" 
1980. Sanis Bens. | V. 186. — Ins. Andaman. 
1281. semiconvexa Pfr. IV. 115. V. 186. — Ins. Salomonis. 
12982. Cantoriana Bens.- V. 186.— Trochomorpha Cantoriana Stol. 
in Journ. Às. Soc. XLII. p. 22. t. 4. f. 13. — Pulo Sung- Sung 
prope Pulo Pinang. 
1288. H, abrochroa Crosse. | 
« T. latissime umbilicata, depressa, lenticularis, tenuis, dia- 
phàna, nitidula, sublaevigata, vix oblique striatula, luteo-cornea, 
unicolor; spira depressa, parum prominula; sutura marginata; 
anfr. 5 sensim accrescentes, planati, embryonales 1!/, laeves, 
nitiduli, ultimus non descendens, acutissime carinatus, basi con- 
vexiuseulus, circa umbilicum magnum, perspectivum angulatus; 
apertura subquadrata, concolor; perist. simplex, acutum, mar- 
ginibus disjunctis, distantibus, columellari vix dilatato, externo 
 angulato. — Diam. maj. 10, min. 9, alt. 3 mill.» (Cr.) 
8. pseudoplanorbis Mouss.: spira minus depressa (diam. 10, 
alt. 6 mill.); anfractu ultimo ad basin planiori, umbilico minus 
aperto. 
