168 TINIONID^E. 



beaks very deep and angular The green Dojora variety is 



remarkable for the great development of the teeth. The lateral 

 ones are disposed to be treble in the right as well as in the left 

 valve; and several parallel plicae intervene between them and 

 the exaggerated cardinal teeth in a perfect specimen with the 

 following dimensions: Long. 37, lat. 50, diam. 23 mm." 



299. Parreysia (Parreysia) vulcana (Hanley). 



Pnrreysia (Parreysia} vulcana (Ilanley) : Simpson, Washington, 

 D.C., Smiths. Inst., Nat. Mus. Proc/xxii, 1900, p. 844. 



Unio vulcanus, Hanley, P. Z. S. 1875, p. 606 : H. & T.. C. I. 1876, 

 p. 62, pi. 155, fig. 3 ; Pastel, Conch. Sam. iii, 1890, p. 172. 



Original desertion: Testa solida, inaequilateralis, subovata, 

 viridis, undique (nisi fortasse ad extremitatem anticam) plicato- 

 rugosa ; plica? (sen tubercula elongata confluentia) undatim angu- 

 lariter et oblique ordinata3. Margo dorsalis posticus et margo 

 ventralis convexi, subparalleli. Costa umbonalis nulla ; area 

 postica nequaquam concava. Lunula lata, hand multum impressa. 

 Margarita alba, vix minime iridescens. Margo cardinalis latus ; 

 dentes cardinales solidi, lacerati ; in valvula sinistra dens lateralis 

 inter duos valvulae dextra3 insertus. 



Long. 25, lat. 38 mm. 



Hcib. Burma. 



Described from an isolated specimen and appearing to somewhat 

 resemble P. tavoyensis (Gld.), in form. 



To the description the following note is appended : 



" . . . . When hold before a light the valves appear of a yellowish 

 green, richly embossed with zigzag ridges of ii darker or bluer ver- 

 dure. The hinge is nearly the same as in U. \_P. (P.)] fitoridcn* of 

 Benson, the central teeth being short and complicated." 



300. Parreysia (Parreysia) feae (Tapparone-Canefri). 



Parreysia (Parreysia} few (Tapparone-Canefri) ; Simpson, Wash- 

 ington, D.C., Smiths. Inst., Nat. Mus. Proc. xxii, 1900, p. 844. 



Unio fees, Tapparone-Canefri, Ann. Mus. Civ. St. Nat. Geneva, 

 xxvii, 1889, p. 340. 



Original description : Testa solida, crassiuscula, subcordato- 

 ovata, insequilateraii, postice attenuata, margine ventrali sub- 

 arcuato postice sinuato, umbonibus tumidiusculis, decorticatis. 

 Valvse rugis concentricis profundis 3-4-5 saepius exaratae, epi- 

 dermide luteo olivacea, tenui, ]a3vi indutae, umbonibus prsesertim 

 et latere postico in jtmioribus varie ex Ia3te-viridi depictis et 

 fulgurato-corrugatis. Dentes cardinales crassi, subtrigoni, laciniati 

 et striati, dentibus in valva dextera unico, in sinistra duplici, 

 postico majori triangulari, antico-oblongo minori. Margarita laete 

 carnea. 



Long. 42-43, lat. 55, diam. 25-29 mm. 



Hal. Meetan, Houugdaran Eiver (L. Fca). 



