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



*Anodon irtsans Anthoxy, Am. Jl. Concli., 1, 1865, p. 163, pi. xvi, fig. 2. 

 *Anodonta irisans B. H. Wright, Check List, 1888. 

 *Anodonta irisans P.etel, Conch. Sara., Ill, 1890, p. 180. 



* ? Anodon liordemn Sowerby, Conch. Icon., XVII, 1867, pi. xa'iii, fig. 66. 



* t Jmofionto s»fccanna/a Currier, Am. Jl. Conch., Ill, 1867, p. 113, pi. vi, fig. 5. — 



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



* ? Anodon suhcylindracea Sowerby, Couch. Icon., XVII, 1867, pi. xv, fig. 47a. 

 "" Anodon exilis Sowerby, Conch. Icon., XVII, 1869, pi. xxii, fig. 84. 



* 1 Anodon iiholadiformis Sowerby, Conch. Icon., XVII, 1870, pi. xxvii, fig. 106. 



St. Lawrence River drainage. 



ANODONTA TERES Conrad. 



'"Anodonta teres Conrad, New F. W. Shells, 1834, p. 47, pi. vii, fig. 2.2—* Fkrussac 

 Guerin. Mag., 1835, p. 25.— * Moller, Syn, Nov. Gen., 1836, p. 194.— * Chenl', 

 Bib. Conch., 1st ser., Ill, 1845, p. 25, pi. ii, fig. 9. — * Conrad, Pr. Ac. N. Sci. 

 Phila., VI, 1853, p. 264. 



Santee Canal, South Carolina. 



t ANODONTA IMPLICATA Say. 



Anodonta impUcata 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 Fluv. Shells, 1840, p. 

 11. — Stimpson, Shells of N. Fug., 1851, p. 15. — * Conrad, Pr. Ac. N. Sci. Phila., 

 VI, 1853, p. 264.—* H. and A. Adams, Gen. Rec. Moll., II, 1857, p. 502.—* Cles- 

 siN, Conch. Cab. Ano., 1873, p. 78, pi. xix, fig. 3.—* Latchford, Tr. Ottawa F. 

 N. Club, 1882, p. 56.—* B. H. Wright, Check List, 1888.—* H. Carpenter, 

 Nautilus, IV, 1890, p. 57. 



* Anodon impUcata Gould, In v. 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- 

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

 ^Margaron (Anodonta) im2)Ucata Lea, Syn., 1852, p. 50; 1870, p. 80. 



* '^Anodon implicatiis Sowerby, Conch. Icon., XVII, 1867, pi. xiii, fig. 44.^ 



*\ Anodonta neivtonensis Lea, Tr. Am. Phil. Soc, VI, 1838, p. 79, pi. xxi, fig 66; 



* Obs., II, 1838, p. 79, pi. xxi, fig. 66.—* Hanley, Test. Moll., 1842, p. 219. 



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



* Anodon newtonensis Sowerby, Conch. Icon., XVII, 1867, pi. xvii, fig. 62. 



* Anodonta neivtoniensis HwoscuF.i., Arch. fiir. Natnrg., V, 1839, p. 239. — * P^tel, 



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



* Anodon newtoniana Catlow and Reeve, Conch. Nom., 1845, p. 67. 



""% Anodon excurvala De Kay,^ Zool. of N. Y., Moll., Pt. 5, 1843, p. 202, pi. xvii, 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. 



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

 oi' marginata. 



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 lihe A. fragilis, while the description 

 is too brief to properly characterize it. 



^This may be A. grandis Say. 



•■I am not certain whether this is the impUcata of Say or his caiaracta. 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 impUcata. 



