176 LITTORTNIDiE. 



Tar. jQ.losa. 

 TrocTius filosus, Relbling, PHvatg. Bohmen IV, 1779 {fide MorcJi, 1876). 



Morch. does not record the following important locality. 



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



5. Modulus unidens. 



Trochilus unidens, Listeri, Chemn., Conch. Cab. I, Vol. X, p. 290, 1788 ;= 

 Monodonta carcTiedonicus, Lam. 1822, Rab. ? ; fide Morch =^Trochus 

 perlatus, Dillwyn, also Wood {not of Gmelln), and var. minora 

 Monodonta angulata, C. B. Adams, P. Bost. S. 1845, Jamaica. 



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

 W. Newcoinb. 



6. Modulus disculus. 



Trocbus disculus, Fhilippi, Zeits. Malalc. 1846, Mazatlan. 



var. [fide Newcombl. 



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



7. Modulus ototusatus. 



Trochus obtusaius, Fhilippi, Conch. Cab. II, 1846, Los. ?, for Chemnitz, 

 Jig. 1569—70. 



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



Despite tlie higHy valued opinion of von Martens, I consider 

 this a distinct species. 



1 Rodriguez ; coll. J, Caldwell, Esq. 



A doubtful specimen ; in very bad condition. 



8. Modulus tectum. 



Trocbus tectum, Gmelin, Syst. Lin. 1788, West Indies; from Madagascar, 

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

 retusa, Bruguiere = Modulus eidaris. Reeve. 



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



3 Natal ; coll. G. Nevill, Esq. 



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



