CHELYDIDjE. - TRIONYCHID^. 571 



Genus HYDROMEDUSA. 



74. Hydromedusa maximiliani (Mikan). Maximilian's Ter- 



rapin. 

 Hob. Brazil. 



. Presented by Dr. Palm, C.M.Z.S., Sept. 19, 1871. 

 e. Purchased, Jan. 20, 1876. 



Genus CHELODINA. 



75. Chelodina oblong a, Gray. Oblong Chelodine. 

 Hob. West Australia. 



a. Presented by W. Ayshford Sandford, Esq., March 18,1856. 



76. Chelodina longicollis (Shaw). Long-necked Chelodine. 

 Hob. Australia. 



a. Presented by P. Joske, Esq., Jan. 9, 1861. From the 



TarraEiver. See P. Z. S. 1861, p. 59. 



b. Presented by H.R.H.The Duke of Edinburgh, July 4, 1868. 



c. Purchased, May 2, 1870. 



d. Presented by John Brazier, Esq., C.M.Z.S., March 18, 1872 



Genus CHELYS. 



77. Chelys matamata (Brug.) . Matamata Terrapin. 

 Hob. Upper Amazons. 



a, b. Received in exchange, March 21, 1878. See P. Z. S. 



1878, p. 378. 



c, d. Purchased, Nov. 26, 1880. 

 e. Purchased, March 3, 1881. 

 /, g. Purchased, April 25, 1881. 

 h. Purchased, Oct. 25, 1882. 



Family TRIONYCHID^E. 



Genus TRIONYX. 



78. Trionyx cegyptiacus (Geoffr.) . Egyptian Trionyx. 

 Hob. River Nile. 



a. Presented by Alexander Baird, Esq., April 17, 1869. 



b. Purchased, Feb. 16, 1872. 



