DES M01XKS ACADEMY OF SCIENCE. 



from tin- Ilarpcth river, Tennessee aiul no other localities have yet occurred. 

 See under I'nio li<j<nni-ntinuN, Lamarck. 



t Unio inemlithii, Lea. 



tOhsf rvaiim.s on the (Jenus I'nio, Vol. VIII, PI. VI, Fig-. 214.) 

 The original locality of this species was the Tennessee river, near Tuscumbia. 

 Alabama. Specimens have been taken in Spring creek, at Tuscunibia. It be- 

 longs to the group of <ir<n'.nt<'itx, and is rather close to estctbrooManus. 



* Uisio inctaiiever, Ilafinesque. 



(Am. Jour, of Sci. and Arts, latteries. Vol. VI, PI. VI, Figs. 7a, 7b. as L'tn'o ncKtotnx. 



Barnes.) 



The orthography of this word is unsettled, usage often sanctioning mct<n\cv- 

 n/.s-. This shell is a member of the group which includes 77. t N/KTOXUX, U. 

 irnrdii. and 7". i:ijlin<1i"lcus. Its range is from the Ohio south to the Coosa 

 and Alabama rivers, Alabama; to Neosho and Elk rivers, Kansas; and north 

 to Lake Pepin, Mississippi river. 



* Unit) inississippiensis, Conrad. 



(Figured ?) 



This form was described from the lower Mississippi. It is synonymous with 

 r. suhrostratus, Say, which see. 



f Unio nionodoiitiis, Say. 



See under Mg/rgaritana monodontd, Say. 



f Unio iiiooresiiiiiiis. Lea. 



(Jou . Acad. Nut. Sci Philn. Vol. VI. PI. XI V T , Fig. 37.) 



Clinch, Holston and Tennessee rivers, above Tuscunibia, Alabama. This 

 form belongs to the group represented by r. tlwrnKniii, and is possibly synony- 

 mous with the type of the group. 



I Unio imihliiehlianus, Lea. 



(Trans. Am. Phil. Sue.. Vol. VI, Pi. XII, Fi.j-.3B.) 

 "Cumberland river, Tennessee." This is a member of the irix group, which 



JI 



