120 PROCEEDINGS OF THE ACADEMY OF 



52. C. sinuosa, Broil. Zool. Trans, i. 303, t. 39, f. 11. Reeve, Icon. 



sp. 11. 1846. 

 C. ferruginea, Reeve, Icon. sp. 21. 1846. 



West Indies to Brazil. 



53. C. spinosa, Broil. Zool. Trans, i. 306, t. 38, f. 8, 9. Reeve, 



Icon, sp. 44. 1847. 

 C.fragum, Reeve, Icon. sp. 48. 1847. 

 C. Jukesii, Reeve, Icon. sp. 39. 1847. 

 C. pellisphocse, Reeve, Icon. sp. 54. 1847. 



Lord Hood's I. to California, Philippines, Australia. 



54. C. tumulosa, Reeve, Icon. sp. 52. 1847. 



Honduras. 



55. C. variegata. Reeve, Icon. sp. 50. 1847. 



Honduras. 



56. C. venosa, Reeve, Icon. sp. 34. 1847. 



G. Janus, Reeve, Icon. sp. 36. 1847. 

 Perhaps = G. sordida, Broil. 



Gallapagos Is. 



CATALOGUE OF THE FAMILY CHAMETRACHJEIDJE. 

 BY GEORGE W. TRYON, JR. 



Family CHAMETRACHiEID^E, H. & A. Adams. 



Genera of Recent Mollusca, ii. 404. 1857. 



Genus CHA.METRACHJEA, Klein. 



Ostracol. 149. 1753. 



Hippopus, Martini, Verzeichn, e. auserl. Sam ml. 1773. 

 Tridacna, Da Costa, Elem. Conch. 274. 1776. 

 Ghama, sp. Linn. Syst. Nat. 



1. C. elongata, Lam. Anim. s. Yert. Reeve, Icon. sp. 2. 1862. 

 (Var.) C. compressa, Reeve, Icon. sp. 5. 1862. 

 (Var.) C. elongatissima, Bianconi, Mem. Acad. Bologna, vii. 

 t. 25, f. 2. . 



Mozambique, Ph ilippines. 



