09 DIPLOMMATINA $. 8. 9. 
inaequalibus, tenuibus, undulatis et crispatis, ad peripheriam 
angulosam spiniforme productis, latere interiore excavatis; 
anfr. penultimo haud distinete constricto; ultimo angustiore, 
basi convexiusculo; apertura perobliqua, circulari, extra dila- 
tata, intus continua, laevi, supra leviter adnata, ad latus colu- 
mellare inerassata 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.* (St.) 
Diplommatina  erispata. (Palaina) ;Stol. in Journ. As. Soc. Beng. XL. Pt. 
9. 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? — ütel Catal. 1813. p. 16. 118: genus Diplomma- 
tinaceorum. 
S. 9r 
e2. D. problematica (Pupa) Mousson. 1 
»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, !/, 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. !/, altt. ?/, mill. — Rat. anfr. 3:1. — Rat. 
apert,. d :1.* M.) 
Pupa problematica Mouss. in Journ. Conch. XIII. 1865. p. 176. 
Moussonia typica O. Semp. in Journ. Conch. XIII. 1865. p. 296. 
— — . Crosse in Journ. Conch. XIV. 1866. p. 354. t. 10. f. 9. 
— — . Pütel Catal. p. 118. 
— —  Schmeliz 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 (Gráffe). 
