LITTOKINID^. 175 



2 Loc. ? J ex c. G. Nevill, Esq. 

 1 Devonshire ; ex " Linnaea." 



5. Lacuna variegata. 



Lacuna variegata, Carpenter, Ann. Mag, XIV, 1864, p. 428, Neeah Bay, 

 Vancouver District, 



12 Monterey [California]; coll. Prof. E. C. Stearns. 



6. Lacuna unifasciata. 



Lacuna unifasciata, Carpenter. 



20 Monterey ; coll. Profs. W. Newcomb and E. C. Stearns. 



Genus MODULUS, Gray. 

 Si/n. Brit. Mils. 1849, type Trochus tectum, Qmelin. 



1. Modulus lividus. 



Trochus lividus, Philippi, Zeits. Mai. VI, 2849, p. 168, Eab. ? 

 6 Panama; coll. Prof. E. C. Stearns. 



2. Modulus cerodes. 



Modulus cerodes, A. Adams, P. Zool. S. 1850, Mozainbique, 



4 Gulf of California ; coll. Prof. E. C.Stearns. 



3. Modulus floridanus. 



Modulus floridanus, Conrad, Amer. J. Conch. V, 1870, Florida. , 



8 Florida ; coll. Profs. E. C. Stearns and W. Newcomb. 



Sent as M. cancellatus, Lamarck, a species unknown to 

 me and not recorded by Morch, Malak. Blat. 1876, -wlio seems 

 to confirm Conrad's name. 



3 Pine Key, Gulf of Mexico j coll. Prof. E. C. Stearns. 



4. Modulus modulus. 



Troclms modulus, Linn<Bus, Syst. Nat. X, 1758, Sab. ? = Trochus lentU 

 cularis, Chemnitz, 1781. 



5 West Indies; ex c. Prof. W. Newcomb, and J. Wood- Mason, Esq. 



