No. 49.— 1898.] CEYLON MALACOLOGY. 



153 



CONTRIBUTIONS TO CEYLON MALACOLOGY. 



(2) Description of a new Helicoid Land Shell from the Southern 



Province. 



By 0. Collett, F.R.M.S., Cor. Member of the Malacological 

 Society of London, &c. 



Acavus (Oligospird) poleii, n. sp. 



Shell large, imperforate, depressed, globose, oblong, 

 solid. Of a general pinkish-brown colour all over, encircled 

 by two or more narrow chocolate bands ; the whole upper 

 surface dotted over with irregular golden speckles. 



Spire flattened, slightly elevated ; apex very obtuse. 

 Whorls convex, and rapidly increasing ; suture im- 

 pressed. The last whorl inflated, descending in front, 

 striated by lines of growth, and crossed by obsolete trans- 

 verse encircling ridges, which give a roughened appearance 

 to the shell. The back of the reflected lip is yellowish- 

 white. Aperture oblique, oblong, bluish-white, and shiny 

 within. Peristome white, polished, expanded, and renexed. 

 Columella thickened, dilated, and slightly incurved ; joined 

 to the outer lip by a broad callus which covers the umbilical 

 region. Entire peristome, columella, and callus pure milk- 

 white. Base rose-colour, swollen, and rounded. 



Diameter : major 52 mm., minor 36 mm., altitude 26 mm. 



Habitat : " On decaying logs in forest swamps in the 

 Udagama district, Southern Province." — Pole. 



A collection of land shells sent to me for examination by 

 Mr. E. Ernest Green contained a single specimen of the 

 above species labelled " Udagama." I learned that the shell 

 had been given to my friend by Mr. J. Pole, who was 

 formerly stationed in that district. I accordingly despatched 

 a native collector to the jungles of Udagama to try to secure 

 further specimens for the purpose of comparison. He 



