1862.] Contributions to Indian Malacology, 141 



I obtained one imperfect specimen at Shoukbeng on the Prome and 

 Tongoop road, close to the summit of the hills. 

 7. AiiYCJsrrs nitidtjs, n. s. 

 Testa anguste umbilicata, depresse turbinata, solidula, fulvo-cor- 

 nea, nitida, polita, translucens. Spira conoidea, lateribus convexis, 

 apice obtusa, sutura impressa. Anfr. 4 convexi, ultimns ad periphe- 

 riam subangulato-compressus, subtus planulato-convexus, ad latus 

 breviter tumid us, ibidem confertissime costulatus. Spatium constric- 

 tum longum, nitidum, lira retro-recumbente, parum elevata, prope 

 regionem inflatam munitum. Tubulum suturale breve. Apertura 

 diagonalis, undata, circularis. Peristoma ad basin antice, superne 

 prope anfractum penultimum retro sinuatum, duplex ; interno con- 

 tinuo, breviter porrecto, basi canaliculato ; externo expanso, retro 

 relicto, in processum auriform em subtus product©. Operc. tenue ; 

 corneum, multispirum. 



mm. inch 



Diam. maj. 3| or O.J 4 



„ min. 3 0.12 



Alt. 2| 0.09 



Ap. diam. 1 0.04 



Hab. prope Tongoop in Arakan. 



This very pretty and distinct little species occurred rarely at the 

 roots of trees near Thaloo and Bandiyo, on the Prome and Tongoop 

 road, not far from the last-named place. It combines the canalicu- 

 late inner peristome of A. succineus with an ear-shaped process like 

 that at the base of A . polygonorna, while the ridge on the peristome 

 is curved backwards in a similar manner to that in A. hebes, Bens. 

 A. gemmula, Bens, and A. Footei, Blanf. although much less elevated 

 than in either of those species, to which the shell now described has 

 otherwise but little resemblance. The somewhat flattened base is 

 peculiar. 



The preceding 7 species shew how numerous must be the forms 

 belonging to this peculiar and well marked little genus. Ten species, 

 including A. wnbonalis, armillatus and sculptilis of Mr. Benson, 

 have now been described from the partially explored provinces of 

 Pegu and Arakan.* 



* Since the above was written I have obtained 2 more species from Upper 

 Burma. 



