14. CTRENELLA TUMID A ? 



Mysia tumida, Nutt. 



Cyrenoida tumida. Jay's Cat. iv. ed. 33, 1850. Hab. ? 



SYNONYMY OF THE KNOWN SPECIES OF RANGIA, A GENUS 

 OF THE FAMILY MACTRACEA. 



BY TEMPLE PRIME. 

 RANGIA, Desmoulins. 



CLATHRODON, Gray, MSS. RANGIA, Desmoul. Soc. Linn. 

 Bord. v. 1831. Conrad, Marine Conch. 1831. CLATHRODON, 

 Gray. Conrad, Amer. II. xxiii. 1833. MACTRA. Conrad, 

 Amer. II. xxiii. 1833. GNATHODON. Rang. Ann. Mus. n. ser. 

 iii. 1834. Gray, London Mag. N. Hist. n. ser. i. 1837. 



1. RANGIA CYRENOIDES, Desm. Act. Soc. Linn. Bord. v. 48, 

 pi. 1, 1831. Conrad, Marine Conch. 57, pi. 13, 1831. Adams, 

 Rec. Gen. ii. 380, 1858. Conrad, Proc. Ac. N. S. Phil. 232, 



1860. 



Clathrodon cuneata. Gray. Conrad, Amer. II. xxiii. 340, 

 1833. 



Gnathodon cuneatus. Gray. Lond. Mag. N. Hist. n. ser. i. 

 77, f. 34, 1837. Hab. N. America. 



2. RANGIA CLATHRODONTA, Conrad. Proc. Ac. N. S. Phil. 



232, 1860. 



Mactra clathrodonta, Conrad. Amer. II. xxiii. 340, 1833. 

 Gnathodon Grayi, Conrad. Foss. Test. form. 23, pi. 13, f. 1. 

 Hab. N. America (fossil.) 



3. RANGIA FLEXUOSA, Conrad. Proc. Ac. N. S. Phil. 232, 



1860. 



Gnathodon flexuosa, Conrad. Amer. II. xxxviii. 92, 1840. 

 Hab. N. America. 



Rangia Grayi, Conrad. Foss. Test, form. 23. pi. 13, f. 1, is 

 Rangia clathrodonta, Conrad. 



