144 



UNTOXID^E. 



scars somewhat deeply excavated, especially above ; posterior scars 

 ovate, lightly impressed ; interior of shell nacreous shading from 



Fig. 8.--1 & 2. Nodularia (N.} theobaldi, Preston (type), nat. size. 

 3. Hinge and muscular scars of same. 



pale flesh-colour to bluish iridescent, especially towards the 

 posterior margins. 



Long. 34, lat. 60, diam. 19 mm. 



Hob. Manipur. 



The type is in the Indian Museum. 



279. Nodularia (Nodularia) olivaria (Lea). 



Nodularia (Nodularia} olivaria (Lea) Simpson, Washington, D.C., 



Smiths. Inst.,,Nat. Mus. Proc. xxii, 1900, p. 817. 

 Unto olivarius, Lea, Philadelphia, Pa., Trans. Amer. Phil. Soc. iv, 



(n. s.) p. 108, pi. 16, fig. 38 ; Obs. Genus Unio, i, p. 118, pi. 16, 



fig. 33 ; H. & T., C. I. p. 5, pi. 10, fig. 1. 

 Margarita ( Unio) olivarius, Lea, Syn. 1836, p. 26 ; 1838, p. 20 ; 



1852, p. 30; 1870, p. 47. 

 Unio pumilio, Kiister, Conch. Cab., Unio, 1862, p. 268, pi, 90, 



fig. 7. 



Original description : Testa ovata, transversa, inflata, pellucida ; 

 valvulis pertenuibus ; natibus prominulis ; epidermide pertenui, 

 lajve et oliv* colorem habente ; dentibus cardinalibus magnis 



