AMXICOLA. 69 



Animal having an elongated foot, rounded posteriori}'-, with 

 each anterior angle produced hiterally ; head half the breadth of 

 tlie foot, and protruding beyond it; tentacula short, filiform, 

 unequal, ? the eyes seated at the side of the external base; 

 oviparous. Inhabits fresh water. 



137. Amnicola cincta, Gould. 



A7nnicola cincta, Gould, Proc. Bost. Soc. Xat. Hist, ii p 100 • 

 Otia Conch, p. 199. 



Original description: — Testa miinita, tenuis, ovato-oblongata, 

 imperforata, pallide cornea, decoUata : anfr. (superstitibus) 3, 

 veutricosis, ultimo magno, subcaiinato, lineis volventibus, et 

 interdum fascia fusca, cincto : apcrtura ovata, basi aduiodum 

 producta, labro simpliei. 



Alt. 2 mm. 



Hcd). Tenasscrim, Burma. 



Unfortunately no actual specimen has been accessible to tlie 

 author of the present work ; hence the nnpossibility of illus- 

 trating this hitherto unfigui'ed species. 



138. Amnicola parvula (Mutton). 



Amnicola parvula (Hutton), J. A. S. B. .wiii, pt. 2, p. 65") 



(as Pahiflina). 

 Bithinia glubula, I.ea, Proc. Acad. Philad. 1856, viii, p. 110, 



& Journ. Acad. Philad., n. s., vii, p. 119, pi. -22, tig. 12 {= Obs. 



Unio, xi probably) ; 11. & T., 0. I. pi. 151, tigs. 8, 9. 



Original description : — Animal dusky grey. 



Shell conoid, of four whorls exclusive of apex ; colour of 

 epidermis dull or dusky green; aperture ovate, rounded below, 

 angular above ; oblique; operculum horny; subumbilicate, pillar 

 lip partially reflected; sutures deep; epidermis of the upper 

 whorls usually eroded ; transversely striated by fine lines of 

 growth. 



Alt. 4-5 mm. 



Hah. A marshy patch of ground caused by a spring oozing from 

 the side of the Kojuck Pass, at Chummun. 



Subfamily LITHOGLYPHIN.^. 



Animal with simple foot ; radnla with several basal denticu- 

 lations ; penis simple or forked; operculum horny, spiral or 

 subspiral. 



Distribution. S.E. Europe ; S.E. Asia ; C. Africa ; N., S. and C. 

 America; Melanesia. 



