NO. 1205. SYNOPSIS OF THE NAIADES- SIMPSON. 633 



'Anodon irisana ANTHONY, Am. Jl. Couch., 1, 1865, pi 163, pi. xvi, fig. 2. 

 *Anodonia irisanx B. H. WRIGHT, Check List, 1888. 

 *Anodon1a irisans P/ETEL, Conch. Sara., Ill, 1890, p. 180. 



* ? Anodon liordettm SOWERBY, Conch. Icon., XVII, 1867, pi. xvm, fig. 66. 



* t Anodonta snbcarinata CURRIER, Am. Jl. Conch., Ill, 1867, p. 113, pi. vi, fig. 5. 



* B. H. WRIGHT, Check List, 1888.' 



* ? Anodon subcylindracea SOWKRBY, Conch. Icon., XVII, 1867, pi. x v, fig. 47a. 

 "Anodon exllis SOWERBY, Conch. Icon., XVII, 1869, pi. xxn, fig. 84. 



* ? Anodon pholadlformis SOWERBY, Conch. Icon., XVII, 1870, pi. xxvn, fig. 106. 



St. Lawrence Kiver drainage. 



ANODONTA TERES Conrad. 



"Anodonta teres CONRAD, New F.W. Shells, 1834, p. 47, pi. vu, fig. 2." * FKRUSSAC 

 Guerin. Mag., 1835, p. 25. * MOLLER, Syn. Nov. Gen., 1836, p. 194. * CHENU, 

 Bib. Couch., 1st ser., Ill, 1845, p. 25, pi. 11, fig. 9.* CONRAI>, Pr. Ac. N. Sci. 

 Phila.,VI, 1853, p.264. 



Santee Canal, South Carolina. 



f ANODONTA IMPLICATA Say. 



Anodonta implicata SAY, New Harm. Diss., II, No. 22, 1829, p. 340. * CONRAD, New 

 F. W. Shells, 1834, p. 73. FERUSSAC, Guerin. Mag., 1835, p. 250.- SAY, New 

 L. and F. W. Shells, 1840, p. 10.* L. W. SAY, Terr, and Flnv. Shells, 1840, p. 

 11. STIMPSON, Shellsof N. Eng., 1851, p. 15.* CONRAD, Pr. Ac. N. Sci. Phila., 

 VI, 1853, p. 264.* H. and A. ADAMS, Gen. Kec. Moll., II, 1857, p. 502.* CLES- 

 SIN, Conch. Cab. Ano., 1873, p. 78, pi. xix, fig. 3. * LATCHFORD, Tr. Ottawa V. 

 N. Club, 1882, p. 56.* B. H. WRIGHT, Check List, 1888.* H. CARPENTER, 

 Nautilus, IV, 1890, p. 57. 



* Anodon implicata GOULD, Inv. Mass., 1841, p. 118, fig. 78; 2d ed., 1870, p. 180, fig. 



481.* DE KAY, Zool. of N. Y., Pt. 5, 1843, p. 202.* HARTMAN and MICH- 

 KNEU, Conch. Cest., 1874, p. 94, fig. 193. 

 "Margaron (Anodonta) implicata LEA, Syn., 1852, p. 50; 1870, p. 80. 



* 1 Anodon implicatus SOWERBY, Conch. Icon., XVII, 1867, pi. xm, fig. 44. 3 



*t Anodonta neictonemis LKA, Tr. Am. Phil. Soc., VI, 1838, p. 79, pi. xxi, fig 66; 



* Obs., II, 1838, p. 79, pi. xxi, fig. 66.* HANI.EY, Teat. Moll., 1842, p. 219. 



* Margarita (Anodonta) newtonensis LEA, Syn., 1838, p. 30. 



* Anodon newtonensis SOWERBY, Conch. Icon., XVII, 1867, pi. xvn, fig. 62. 



* Anodonta neictoniensis TROSCHEL, Arch. fiir. Naturg., V, 1839, p. 239. * P^ETEL, 



Conch. Sam., Ill, 1890, p. 182. 



* Anodon netvtoniana CATLOW and REEVE, Conch. Nom., 1845, p. 67. 



*1 Anodon excurvala DE KAY, 4 Zool. of N. Y., Moll., Pt. 5, 1843, p. 202, pi. xvn, fig. 

 233. CONRAD, Pr. Ac. N. Sci. Phila., VI, 1853, p. 264. * B. H. WRIGHT, Check 

 List, 1888.* P^TEL, Conch. Sam., Ill, 1890, p. 179. 



1 The type of this is in Mr. Bryant Walker's collection, and seems to be a variety 

 ofmarginata. 



2 It is hard to say where this belongs, or what it is. The figure shows it a dirty 

 yellowish, without rays, and shaped something like A. fragilis, while the description 

 is too brief to properly characterize it. 



3 This may be A. grandia Say. 



4 1 am not certain whether this is the implicata of Say or his cataracta. De Kay 

 states that the shell is thin and fragile, and the figure shows it to be brown, green, 

 and yellowish, in irregular bands, and apparently shining and smooth like cataracta. 

 He says that it is nearest to implicata. 



