PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. [1886. 



EXPLANATION OF PLATE VII. 



Pandama Snuatua Say 9 (page 310). 

 (Unless otherwise stated, all appendages of this species figured on this plate are 

 from sand-shark specimens.) 

 Fig. 1. Swimming foot of first pair, enlarged 52 diameters; from Carcharodon 



Atwoodi. 

 Fig. 2. Swimming foot of first pair, enlarged 29 diameters. 

 Fig. 3. Swimming foot of second pair, enlarged 22 diameters. 

 Fig. 4. Swimming foot of third pair, enlarged 22 diameters. 



Figs. 5, 6. Swimming feet of fourth pair of two specimens, enlarged 22 diameters. 

 Fig. 7. Swimming foot of fourth pair, from Carcharodon Atwoodi, enlarged 22 



diameters. 

 Fig. 8. Swimming foot of fourth pair, from Mustelua eanis, enlarged 22 diameters. 



Pandarue Smithii, sp. n. 9 (page 315). 



Fig. 9. Swimming foot of fourth pair, enlarged 22 diameters. 



