Apodal Fishes of Bengal. 203 



PL VII. Fig. 1. Thcerodontis reticulata, J. M. half size, with 

 the disposition of the teeth represented full 

 size. 



2. Strophidon liter ata, J. M. natural size, with 

 the disposition of the teeth enlarged. 



3. Strophidon punctata, J. M. natural size, with 

 the teeth somewhat enlarged. 



PL VIII. Fig. 1. Strophidon maculata, J. M. or, Murseno- 

 phis tile, Buch. from a drawing in the Bucha- 

 nan collection, Bot. Gard. Calcutta. 



2. Strophidon longicaudata, J. M. from a draw- 

 ing in the Buchanan collection, marked by 

 that author as Murcenophis sathete. 



3. Murcenesox Hamiltonii, J. M. from a drawing 

 in the Buchanan collection, marked Murceo- 

 phis Bazi. 



4. Murcenesox exodontata, J. M. head and jaws 

 natural size, and a reduced figure of the 

 whole. 



PL IX. Fig. 3. Ptyobranchus erythreus, J. M. natural size, 

 three figures, one representing the external 

 form, another the internal struture, and a 

 third the jaws and branchial rays enlarged ; a. 

 a. branchial rays, i.i. the lower jaw separated 

 at the symphisis; 1.1. the hyoid bones, nun. 

 small opercula, b.b. the gills natural size, 

 c. the branchial arteries, d. the heart, n.n. 

 pericardium forming the diaphragm, e. the 

 liver raised from its place to show the con- 

 tinuation of the oesophagus; h. f. the sto- 

 mach ; g. the intestine. 



4. Ptyobranchus multidentata, J. M. natural 

 size, with the teeth enlarged. 



5. Ptyobranchus parvidenlata, J. M. natural 

 size, with the teeth enlarged. 



