OPISTHOSTOMA. DIPLOMMATINA. 69 
4. O0. macrostoma Beddome. 1 
» lesta perforata, conoideo-ovata, albida vel pallide rubella, 
subdistanter oblique filiformi-costulata, sub lente spiraliter mi- 
nutissime et confertissime striata. Spira elevato-conoidea, la- 
teribus convexis, apice acutiusculo; sutura valde impressa. 
Anfr. 5!/, convexi, apicales normales non deviantes, penultimus 
vix major, ultimus confertius costulatus, brevissime constrictus, 
antice sigmoideo-deflexus. Umbilicus ab anfractu ultimo non 
occultus. Apertura retrorsa subrotunda, fere verticalis; peri- 
stoma brevissime ad anfractus duos, penultimum et antepenul- 
timum, adnatum, duplex, internum continuum expansiusculum, 
externum expansum, breviter interruptum. — Long. 3, diam. 
maj. 3, min. 2, apert. diam. cum. perist. 1!/, mill.* (Bl) 
Opisthostoma macrostoma .Bedd. mss.; W. T. Blanf. im Journ. As. Soc. 
Beng. XXXVIII. Pt. 2. p. 139. t. 16. f. 7. (Contrib. 
to Ind. Malac. X. 1869.) 
Habitat in montibus Bramagiri dictis, in regione W ynaad, 
haud procul a littore Malabarico Indiae (H. Beddome). 
XIX. Diplommatina Benson. 
Dn Mon. Pnaeum. I. p.121; IL. p. 9; LLL p..8.. —. 
Semper in Journ. Conch. XIII. 1865. p. 289. — Crosse ibid. 
XIV. 1866. p. 348. — Martens Ostas. Zool. IL. 1867. p. 
164. — W. T. Blanford 1 Ann. and Mag. nat. hist. 3d. ser. 
XIX. 1867. p. 306 (animal cum icone: oculi ut in Cyclo- 
phoro); Contrib. to Ind. Malae. IX. 1868 (Journ. As. Soc. 
XXXVII. Pt. 2; Ann. and Mag. n. h. Ath. ser. III. 1869. 
p. 943. — Macdonald in Ann. and Mag. n. h. 4th. ser. IV. 
1869. p. 17: genus Cyclophoridarum. —  Godwin Austen in 
Journ. As. Soc. X XXIX. 1870. Pt. 2. p. 1. — Stoliczka ibid. 
XL. 1871. Pt. 2. p. 153. —  Péátel Catal. 1873. p. 16. 118. 
Injungantur genera (vel subgenera) Palaina O. Semper, 
Moussonia O. Semper, Nicida W. 7T. Blanford et Aríinia H. 
& ÀÁ. Adams. 
Conspectus specierum. 
4A. Normales, 
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