Ill 



39. D. trifasciatus, Linn., Syst. Nat. 3233, 1767. Hanley, 



Ipsa, Linn. t. 1, f. 5. 

 Z>. vittata, Lam., Anim. s. Vert, v, 548, 1818. Delessert, t. 



6, f. 12, t. 2, f. 4, 1828. 

 D. hiradiata. Wood, Index Test. Supp. 

 B. semistriatus, Poli, Test. Utr. Sicil. 1, t. 3, f. 12, 1791. 



Reeve, Donax, Sp. 25. 

 D. fahagella^ Lamarck, Anim. s. Vert, v, 552, 118. 



England — 3Iediterranean. 



40. D. veneriformis, Lam., Anim. s. Vert, v, 548, 1818. 



Asiatic Ocean. 



Sub-genus HECUBA, Schum. 

 Essai, 157, 1817. 



41. D. acutocarinatus, Sowerby. 

 Thes. Conch, iii, 305, f. 6, 7. 



42. D. asper, Hanley, MSS. Reeve, Donax, Sp. 12, 1854. 

 Thes. Conch, iii, 307, f. 24. Peru. 



43. D. carinatus, Hanley, Zool. Proc. 5, 1843. 



Wood's Index, Test. Supp. t. 14, f. 28, Reeve, Donax, Sp. 

 11. 

 D. culmifiatus, Carpenter, Mazat. Cat. 43, 1855. Jlab. — P 



44. D. dcntlfera, Hanley, Wood's Index, Test, Supp. t. 14, f. 



20, 1828. 

 Thes. Conch, iii, t. 307, f. 23. Reeve, Donax, Sp. 2. 



iSo. America. 



45. D. rostratus, C. B. Ad., Panama, Cat. 1852. 



Panama — 3Iazatlan. 



46. D. SCOrtum, Linn., Syst. Nat. 1126, 1767. 



Sowerby, Thes, Conch, iii, 305, f. 1 — 3. Reeve, Donax, 

 Sp. 1. 



D. pubescens, Linn., Syst. Nat. 1127. Anim. sans Vert, v, 



546, 1818. 

 H. lamellaris, Schum., Essai, 157, 1817. Cape Crood Hope. 



Sub-genus SERRULA, Chemn. 



Ouneus, Gray, (non DaCosta or Muhlfeldt). 



Brit. Aceph. 46, 1851. 



47. D. aeneus, Morch, Deshayes, Zool. Proc. 350, 1854. 

 Thes. iii, 315, f. 83. Reeve, Donax, Sp. 52. T7'anquebar. 



48. D. angustus, Philippi, Zeit. Mai. 145, 1848. Hab.—? 



