RISSOID^. 51 



22. Hydrobia (Bythinella) viridis. 



Bulimus viridis, Poiret, Prod. Moll. Aisne, 1801. 



9 France ; coll. A. Malherbe, Esq. [A. S. B.] 

 2 Grasse ; ex " Linnaea." 



23. Hydrobia (Bythinella) elachista. 



Hydrobia elachista, Pourguignat, Rev. Mag. Zool. 1862, 2^' 112 — long. 3, 

 diam. 2 mil. — Constant itie ; sect. Frauenfeldia,fide Kohelt. 



It Constantine ; ex c. P. Joly, Esq. 



24. Hydrobia (Bythinella) n. sj), 

 2 Clieragas, Algeria -, coll. P. Joly, Esq. 



25. Hydrobia (Bythinella) n. sp. [?] 



Conf. Paludina miuutissiina, /Sc^Wiit^^, Conch.- Cab. II, pi. 13, fig. 26—27, 

 " Krain." 



1 Marees de la Macte, Oran ; coll. P. Joly, Esq. [long. 1| m.J 



26. Hydrobia (Bythinella) carinulata. 



Hydrobia carinulata, Drouei, Moll. Cote d' Or, 1867, Dijon. 

 30 Dijon ; coll. G. Nevill, Esq. 



27. Hydrobia (Bythinella) rubiginosa. 



Paludina rubiginosa, Bouhee, Bull, ffist. Nat. 1833, St. Oirons {Arihge) ; 

 fide Moquin-Tandon = Hgdr. viridis, Poiret, var, [not Palad.']. 



30 Ariege ; ex c. P. Joly, Esq. 



28. Hydrobia (Bythinella) abbreviata. 



Paludina abbreviata, Michaud, Compl. Drap. 1831, Lyons. 

 20 S. Saulge (Dep, Nievre) ; coll. P. Breviere, Esq. 



29. Hydrobia (Bythinella) reyniesi, 



Hydrobia Eeyniesi, Bupug, Hist. Moll. Fr. 1851, Cauterets,^c.; fide Fischer 

 ^Hydrobia canaliciilata, Palad. 1869, " pres Cierp ;" sect. Frauenfeldia, 

 fide Kobelt, 



7 Cauterets ; coll. G. Nevill, Esq. 



