PARKEYSIA. 163 



raised line borders the iuner side of the umbonal slope, which 

 exhibits a few rugae at the upper part." 



Hal. Cane River, near Banda, Bundelkhund. Specimens in the 

 Indian Museum are labelled as follows : Patna ; Langlai ; Alipur, 

 Calcutta (Dr. J. Anderson), Beerbhoom (J. Wood-Mason). 



293. Parreysia (Parreysia) smaragdites (Benson). 



Parreysia (Parreysia) smaragdites (Benson) ; Simpson, Washington 



D.C., Nat. Mus. Proc. xxii, 1900, p. 843. 

 Unio smaragdites, Benson, A. M. N. H. x, 1862, p. 190 ; Blanford, 



J. A. S. B. xxxv, 1866, p. 147 j H. & T., C. I. 1876, p. 5, pi. 10, 



fig. 5 ; Psetel, Conch. Sam. iii, 1890, p. 167. 



Original description : Testa transverse ovato-rhomboidea, in- 

 aequilaterali, crassiuscula, tumida, antice rotundata, postice alata, 

 recta, turn valde declivi, demum subangulata, margine ventrali 

 convexo ; disco laevigato, polito, vix striatulo, sub epidermide 

 pulchre viridi tenuissima obscure radiata albo, margine lutescente ; 

 umbonibus prominentibus, apicibus approximatis, subdecorticatis, 

 margaritaceis, breviter et minute radiato-sulcatis ; lunula angusta, 

 elongata, transverse rugata ; ligamento subelongato ; carina um- 

 bonali prominente obtusiuscula, areola versus apicem depressi- 

 uscula, viridi obscure radiata ; dentibus cardinalibus duplicibus, 

 subangustis, rugosis, lateralibus curvatis elongatiusculis, valvae 

 dextrae simplicibus, sinistrae duplicibus, nonnunquam subtri- 

 plicibus : margarita albida, nonnunquaui luteo tincta. 



Long. 31, lat. 42, diam. 20 mm. 



The above description is amplified by the following note : 



"Remarkable for the smoothness of the beautiful green 

 epidermis, which is very thin, and, when rubbed off, exhibits a 

 plain white colour, not nacreous, underneath. The anterior 

 cicatrices are confluent, the posterior nearly distinct, the apical 

 ones situated under the cardinal teeth. Cavity of beaks very 

 deep ; a few rugae cross the stria3 on the posterior slope. In 

 general characters it approaches most nearly to the Jellingyhy 

 variety (deltce) of U. [P. (P.)] favidens, which has a more tumid 

 ovate form, a regular, sulcate, olivaceous surface, longer and dis- 

 tinctly angulate-flexuous umbonal furrows, and a broad lunule." 



Hob. Berhampooter Eiver, Assam (Col. Jenkins). 



There is a fine series of this interesting form in the collection 

 of the Indian Museum bearing the Burmese localities, Bhamo and 

 Zayleytnan (Dr. J. Anderson). 



294. Parreysia (Parreysia) bhamoensis (Theobald). 



Parreysia (Parreysia) bhamoensis (Theobald) ; Simpson, Wash- 

 ington, D.C., Smiths. Inst., Nat. Mus. Proc. xxii, 1900, p. 483. 



Unio bhamoensis, Theobald, J. A. S. B. xlii, 1874, pt. 2, p. 207, 

 pi. 17, fig. 1; PHanley & Theobald, Conch. Ind. 1876, p. 62; 

 pL 155, fig. 2; Psetel, Conch. Sam. iii, 1890, p. 146. 



ic2 



