1 76 LlTTORlNIDiK. 



var. filosa. 



TrocTiusfilostis, Selbling, Prioatg. Bohmeii IV, 1779 {fide Morch, 1876). 



Morcli does not record the following important locality. 

 2 Florida ; coll. Prof. E. C. Stearns. 



5. Modulus unidens. 



Trnchilus unidens, Listeri, Chemn., Conch. Cab. I, Vol. X, ;;. 290, 178S ;= 

 Monodonta carcliedoiticus. Lam. 1822, Hab.l ; fide Morvli ■^^Trochtis 

 perlatus, Dillivi/n, also Wood {not of GmeJin), and var. minoi^ 

 Monodonta angulata, C. B. Adamn, P. Bost. S. 1843, Jamuica. 



7 Panama and Gulf of Fonseca ; coll. Profs. E. C. Stearns and 

 W. Newcomb. 



6. Modulus disculus. 



Troclius disculus, Philippi, Zeits. Malak.]1846, Mazatlan. 



var. [fide Newcombl. 



20 Gulf of California ; coll. Profs. E. C. Stearns and W. Newcomb. 



7. Modulus obtusatus. 



Trocbus obtusaUis, PhiUiipi, Conch. Cab. II, 1846, Lo;. ?, for Chemnitz, 

 fiy. 1369—70. 



7 Mauritius and Ceylon; coll. G. Nevill, Esq., 



Despite tlie highly valued opinion of von Martens, I consider 

 this a distinct species. 



1 Rodriguez ; coll. J. Caldwell, Esq. 



A douhtful specimen ; in very bad condition. 



8. Modulus tectum. 



Trnchus tectum, Gmelin, Sust. Lin. 17SS, West Indies ; from Iladaqascir, 

 Natal, Beii Sea, Bourbon, fide v. Martens ; fide Petit = Monodonta 

 retusa, Brugulere = Modulus cidaris, Reeve. 



7 Mauritius and Seyclielles ; coll. G. Nevill, Esq. 



3 Natal ; coll. G. Nevill, Esq. 



3 Triucomalee (?) ; ex c. Dr. F. Stoliczka. 



