144 



UNIOXID.E. 



sears somewhat deeply excavated, especially above ; posterior scars 

 ovate, lightly impressed ; interior of shell nacreous shading from 



Fig. 8.— 1 & 2. Noduhtria {N.) theohaldi, Preston (type), nat. size. 

 o. Hinge and muscular scars of same. 



pale flesh-colour to bluish iridescent, especially to\\ards the 

 posterior margins. 



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



Hah. Manipur. 



The type is in the Indian Museum. 



279. Nodularia (Nodularia) olivaria {Lea). 



Nodularia (Nodularia) olivaria (Lea) Simpson, AVashiiigton, D.C., 



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

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



(u. s.) p. 108, pi. 16, tig-. 38; Ubs. Genus Unio, i, p. 118, pi. 16 



fig. 3;'. ; H. & T., C. I. p. 5, pi. 10, tig. 1. 

 Margarita {Unio) olivarins, Lea, Svn. 1836, p. 26 ; 1838, p. 20 



18r)2, p. 30 ; 1870, p. 47. 

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



fig. 7. 



Original descyqAion : — Testa ovata, transversa, inflata, pellucida 

 valviilis pertenuibus ; natibus prominulis ; epidermide pertenui 

 loive et olivsB colorem habente ; deutibus cardinalibus magnis 



