100 



Genus FOLINIA, Crosse. 

 J. de C., 1867, type Rissoa insignis, Folin,from Panama. 



Two species have since been described from Suez in the 

 " Fonds de la Mer," but not figured ! I have never seen the 

 Genus. 



Genus HIS SO A, Freminville, ms. 



Desmarest, Bull. Sci. Soc. Philom. 1814, type S. violacea, Desm.; type fide 

 Gray, P. Z. S. 1847, R. laliosa [ = membranacea'] ; type fide Herrm. 1848, 

 Turbo cimex ; sect. = Mohrensternia, Stol., Palcsont. Ind. 1867, type R. 

 angulata, Eichw. ; sect. Zippora, Leach, Syn. Moll. Gt. Brit. 1852, type 

 R. auriscalpium, Lin. ; sect. = Rissostomia, Sars, Moll. Norveg. 1878, type 

 R. membranacea, J. Ad. [as Z. drummondi, Leach.~\ 



1. Rissoa sulzeriana. 



Alvania sulzeriana, Risso, Hist. Nat. Mer. 1826. 



3 Piedmont [fossil] ; coll. Herr Schwartz von Mohrenstern. 



2. Rissoa lachesis. 



Turbo lachesis, Basterot, Mem. Geol. Bord., 1825. 



5 Steinabrunn [fossil] ; coll. Herr Schwartz von Mohrenstern. 



3. Rissoa albella. 



Bissoa albella, Loven, Index Moll. Scand., 1846, Bohnslau; var. R. sarsii 

 Lov., Bergen, fide Jeffreys. 



6 " Kattegat j " coll. Herr Schwartz von Mohrenstern. 



4. Rissoa decolorata. 



Rissoa decolorata, Phllippi, Mai. Zeits., 1846, Lesina long. 3, diam. 1^. 

 3 Mediterranean ', coll. Herr Schwartz von Mohrenstern. 



5. Rissoa interrupta. 



Turbo inter rupta, J. Adams, Trans. Lin. Soc. V, 1798 ; fide Jeffreys -R. 

 parva, var. 



