1864.] Notes on some Indian and Burmese Helicidce. 



Ml 



VlTRIKA CHRISTIANS, Til. 



Testa sub-globosa, tenui, polita, diaphana, nitida, supra costulate 

 striata, infra planiore. Colore succineo. Apicc pallido, vix elevatius- 

 culo. Peripheric rotundata. Apertura parum obliqua. Anfractibus 

 3| lente erescentibus. Long. 13. Lat. 11. Alt. 8 mills. 

 Habitat in insulis Andamanicis. 



I have much pleasure in naming this shell after the lady of the 

 present Governor of the settlement, Lieut.-Col. Tytler, as a mark of 

 esteem and in pleasing remembrance of my sojourn at Port Blair in 

 his hospitable mansion. It is of the same type as V. Bensoni, Pfr. but 

 is at once distinguished from all species I am acquainted with by its 

 rich brown colour. 

 Helix extji., Th. 



Testa auguste umbilicata, depresso conoidea, faevi, tenui, striatula, 

 concolore fusca. Apice obtuso. Anfractibus sex, tarde creseentibus, 

 convexiusculis, ultimo non descendente. Apertura obliqua- Peristomate 

 recto, tenui, juxta umbilicum leviter reflexo. Long. 16.5, Lat. 15, Alt. 

 8.5 mills. Habitat in insulis Andamanicis. This shell seems a ISTamna 

 and somewhat recalls JSF. semifusca, Dh. but is a more tumid species. 

 Streptaxis Blanfordi, Th. 



Testa perforata, depressa, ovali-oblonga, oblique costulata, striata, 

 translucente ; spira obtuse conoidea. Anfractibus sesqui-quinque non 

 augulatis, Apertura obliqua, subquadrato-oblonga : lamella parietali 

 una et dente singulo in media parte superioris margims. Peristomate 

 expanse, juxta umbilicum reflexiusculo, marginibus callo tenui inter- 

 dum junctis. Varietas reperitur dente carens. Long. 7.5 Lat. 5.0 

 Alt. 4.0 mills. Habitat montibus Arakanensibus provincia Pe°*u. $. 

 AndamaniccB, B. peraffinis, sed differt dente marginal!, apertura, et 

 umbilico parum apertiore. Ab $. Birmaniea, Bl. differt forma minus 

 globosa, apertura et minore magmtudine. 



Streptaxis Birmanica. W. Blanford, (in MSS.). 

 Testa perforata, ovali-oblonga, depresse-globosa, hevi, flavescente, 

 diaphana, spira obtuse conoidea. Anfractibus sex convexiusculis levi- 

 ter costulate striatis ; ultimo subter laevigato, et circum umbilicum 

 compresse-angulato. Sutura profunda, Apertura perobliqua, sub- 

 triangulari-quadrata. Dente parietali unico, magno, alteroque par- 

 vulo, in parte anteriori marginis superioris posito. Peristomate 

 expanso, reflexiusculo, Long. 9.0. Lat. 6.5. Alt, 5,0 mills. Varietas 





