U N I 0. 



Species 119. (Mus. Cun 



Un'IO GrayaNUS. I'll, testa eloni/ato-lanceolata, cram- 

 uscidd, snperni laid plaiiald, latere antico breDtssimo 

 rotitudaio, poslico loiiymimo, a>igulalo-acuininato, circa 

 uiiiboues divaricatim plkato-currugatd ; olicaceo-viridi. 



Gkay's Unio. Shell elongutely lanceolate, rather thick, 

 broad and flattened at the upper part, anterior side 

 very short, rounded, posterior very long, aug'ularly 

 acuminated, divaricately plicately wrinkled about the 

 uraboes ; olive-green. 



Lea, Trans. Amer. Phil. Soc. 1832. Obs. vol. i. p. 178. 

 pi. 9. f. 26. 



Hab. China. 



Ueniarkable on account of 

 posteriorly acuminated form. 



extremely narrow and 



Species 130. (Mus. Cuming.) 



Unio Vignonana. Un. tesld oblomjd, medio coniprensu, 

 latere antico declici-rotundato, poslico declivi-tru/icuto, 

 obtuse angulalo, imdique coiisjjiciie dioaricutim corru- 

 patd ; olivaceo-iiigricante. 



The Vignon Unio. Shell oblong, compressed in the 

 middle, anterior side slopingly rounded, posterior 

 slopingly truncated, obtusely angled, conspicuously 

 divaricately wrinkled throughout ; olive-blaek. 



Beknardi, MS. in Mus. Cuming. 



/lab. ? 



The whole surface of this shell is curiously divaricatelv 

 wrinkled. 



Species 131. (Mus. Cuming.) 



10 ELECTlllNUS. Uit. tesld siibq/iaJrato-obtom/d, coiu- 

 pressd, latere antico rolmidaio, postico oblique triiii- 

 cato, superiie sabalato, ad umbones pUcato-corriigatd ; 

 fulvo-slramiiicd, lieviijatd, vet teutdstriald. 



E AMBER Unio. Shell somewhat squarely oblong, 

 compressed, anterior side rounded, posterior obliquely 

 truncated, slightly winged at the upper part, jdi- 

 cately wrinkled at the umboes ; fulvous straw-colour, 

 smooth, or finely striated. 



■« Sagii, Ward (not of Tappau). 



Of a peculiar pale-fulvous str 

 being thin and nearly smooth. 



Species 133. (Mus. Cuming.) 

 Unio LUTULENTUS. Un. tesld .snbqnndrato-nblongd. valde 

 cumpressd, latere antico modice rolitndato, postlcu de- 

 clivi-e.rpauso, delude truucato, coucealrice rude plicato- 

 striatd ; nigra. 

 The JiuuDY Unio. Shell somewhat squarely oblong, 

 very compressed, anterior side moderately rounded, 

 posterior slopingly expanded, then truncated, concen- 

 trically rudely plicately striated; black. 

 Gould, Pro. Nat. Hist. Soc. Boston, U.S. 18.50, vol. vii. 



[lab. Kew Zealand. 



Of a peculiarly compressed fori 

 general aspect of a Ulgciuieris. 



with somewhat of tl 



es i;:3. (Mus. Cuming.) 



I'n. testii elongalo-oblongd, later 



Unio ricToRUM 



roluudato, poslico modice declivi, subacuminalo , 



olicnced. 

 The painters' Unio. Shell elongately oblong 



side rounded, posterior moderately slopir 



what acuminated ; fulvous-olive. 

 Mya pictorum. LinuKus. Sysl. Nat. lOth i-dit. p 



Unio pictoriim, I'lulippson. 



Unio rostrata, Lamarck. 



ISlijsca piclorum, Turton. 



Unio liiuosus, Nilsson. 



Unio Turtoni, Payrandeau. 



Unio Requieui, Michaud. 



Unio Dcsliaijesii, Michaud. 



Unio longiroslris, Ziegler. 



Unio Ardusianus, Renies. 



Unio ponderosiis, Spitzi. 



Unio Aleronii, Couiiianyo and .Massun. 



Uniu dacliihis, Morelct." 



Unio muculns, .MnivK't. 



Unio I'Inlippi, Dupuy. 



Unio platgiiiicliuides, Dupuy. 



Unio Roussii, Dupuy. 



Unio curvirostris, Dupuy. 



fnlvo- 

 nterior 



April, li 



