24 



4. M, Candida, Rinieri, Coq. cle Adriatic. 



Deshayes, Traite Elem. pi. 6, f. 12, 13, 1835. 

 jSolen stn'gillatus, var., Chemnitz. Var. B., Philippi. 



5. M. Cumingiana, Dunker, Zool. Proc. 425, 1861. Antilles. 



6. M. debilis, Gould, Proc. Bost. Soc. Nat. Hist. viii. 26^ 



1802. Loo Choo. 



7. M. exarata, Philippi, 



H. and A. Adams, Gen. of Shells, ii. 346, 1858. 



8. M. Q,UOyi {>Sole7i), Deshayes. 



Lam., An. sans Vert. vi. 6'6, 1818. 

 S. candldus, Quoy, Voy. Astrolabe, pi. 83, f. 11, 12, 1830. 



Tongataboo. 



9. M. SanctaB-Marthae {Solen), Chem., Conch. Cab. xi. 203, 



f. 1938, IT'clo. Cuba, 



10. M. Scheepmakeri, Dunker, Zeit. Malak. 56, 1852. 



11. M. strigilata (*S'o/en), Linn., Syst. Ed. xii. 1115, 1767. 



Lister, Conch, t. 416, f. 260, 1685. Encyc. Method, pi. 

 224^ f. 3. Mediterranean and Atlantic, 



12. M. strigosa {Soleenrtus], Gould, Proc. Bost. Soc. Nat, 



Hist. viii. 26, 1862. Whampoa. 



Genus SILiaUA, Mllhlfeldt, 

 . Entw. 44, 1811. 

 Aldus, Oken, 1815, 



1. S. alba {Sole7i), Martyn, Fniver. Conch, pi. 157, 1782. 



Valenciennes, Cat. Miis. Voy. Astrolabe, pi. 26, f. 6, 1830, 



Borneo, 



2. S. borealis, Conrad. 



Macha^ra costata, Middendorff, Malac. Ross. pt. 3, p. 78, pL 

 21, f. 4, 1847. Sitka, 



3. S. californica, Conrad, Amer. Jour. Coneh. iii. 193, 1867, 



Body Bay, California, 



4 S. costata {Sokcurtus), Say, Jour. Acad. Nat. Sci, ii. 315^ 

 1821. 

 Amer. Conch, pi. 8. 

 Machcera eo8tata, Gould. 



Great Egg Harbor, N. J",, Atlantic United States-, 



5. S. exarata, Philippi. 



6. S. Gray anus {Aulus}, Dunker, Zool. Proc. 427, 1861. 



7. S. inflexa {Solen), Wood, Gen. Conch. pL 32, f, 1, 2, 1&15, 



