92 
DIPLOMMATINA §. 8. 9. 
inaequalibus, tenuibus, undulatis et crispatis, ad peripheriam 
angulosam spiniforme productis, latere interiore excavatis; 
anfr. penultimo hand distincte constricto; ultimo angustiore, 
basi convexiusculo; apertura perobliqua, circulari, extra dila- 
tata, intus continua, laevi, supra leviter adnata, ad latus colu- 
mellare incrassata et infra dente pliciforme, vix distinguendo, 
instructa, margine interno acuto, undique libero; peristomate 
externo tenui, lamelliforme undulato et late expanso. — Alt. 
testae 2,5; diam. anfr. penult, (spinis incl.) 1,5; diam. apert. 
intus 0,8, c. perist. 1 mill. 44 (St.) 
Diplommatina crispata (Palaina) Stol. in Journ. As. Soc. Beng. XL. Pt. 
2. 1871. p. 153. t. 6. f. 4. 
Habitat Damotha prope Moulmein. 
* * 
* 
Subgenus Moussonia 0 . Semper. 
Journ. Conch. XIII. 1865. p. 296: genus Diplommatina- 
ceorum. Conf. Crosse ibid. XIV. 1866. p. 354. — Stoliezka 
in Journ. As. Soc. XL. 1871. Pt. 2. p. 156: subgenus Diplom- 
matinae? — Patel Catal. 1873. p. 16. 118: genus Diplomma- 
tinaceorum. 
§. 9. 
82. D. problematica (Pupa) Mousson. t 
„T. minutissima, rimata, conico-turriculata, pellicula nigra 
limosa induta, subopaca. Spira turriculata, subscalarina; summo 
magno, corneo, obtusiusculo ; sutura perprofunda. Anfr. 7, 
primi cylindracei; sequentes convexi, in medio anguloso-inflati, 
oblique costulati, ultimus subattenuatus , non descendens, nec 
ascendens, lamellis distantibus membranaceis transversis orna- 
tus. Apertura parvula, obliqua, :1 ^ 3 spirae aequans, irregula- 
riter circularis, fuscula. Perist. non expansum, obtusum, perin- 
crassatum; marginibus valde conniventibus, callo fusculo fere 
junctis; columella arcuata, infra dente lamelliformi circum- 
data. — Diam. altit. 3 / 4 mill. — Rat. anfr. 3:1. — Rat. 
apert. 1:1.“ (M.) 
Pupa problematica Mouss. in Journ. Conch. XIII. 1865. p. 176. 
Moussonia typica 0. Semp. in Journ. Conch. XIII. 1865. p. 296. 
— — Crosse in Journ. Conch. XIV. 1866. p. 354. t. 10. f. 9. 
— — Patel Catal. p. 118. 
— — Schmeltz in Mus. God. Cat. V. p. 102. 
Diplommatina problematica (Moussonia) Stol. in Journ. As. Soc. XL. Pt, 
2. 1871. p. 156. 
Habitat in insula Upolu, Samoa (Graffe), 
