ILLUSTRATIONS. 



FIGUEE PAGE 



1. The Gi'een water-frog, Bana es- 



culenta, L. . . . .4 



2. The Brown grass-frog, Rana tern- 



poraria, L. . . , ,8 



3. 'Eevanr oî Bana esculenta . . 16 



4. Vertebrae of do. . . .17 



5. Vertebral column of do. . .18 



6. 7. Section through a vertebra of 



Rana esculenta . . .20 



8, 9. Urostyle oï Rana esculenta . 21 



10-14. Skull of do. . 22, 23, 25, 28 



15. Nasal Cartilages of frog . . 29 



16, 17. Skull of Rana esculenta 29, 30 

 18. Origin of suspensory cartilage 



from the skull . . -32 

 19,20. Skull oi Bana esculenta 32,33 



23. 



24. 



25 



21. Mandible of Bana esculenta 



22. Hyoid of Rana esculenta 

 Omosternum of Bana esculenta 

 Shoulder-girdle and sternum of 



do 



Shoulder-girdle of the frog 

 26, 27. Suprascapula of Bana es- 

 culenta .... 



28. Left scapula of Rana esculenta 



29. Scapula seen from behind 



30. Left coracoid .... 



31. Clavicle of the left side . 



32. Right shoulder-girdle of Rana 



esculenta .... 



33. Hinder border of the scapula 

 and coracoid 



Clavicular cartilage of Rana 

 esculenta .... 



34 



35 



34 

 35 

 36 



36 



37 



38 

 38 

 38 

 39 

 39 



40 

 40 

 40 



Humerus of Bana esculenta 

 (female) . . . -41 



36. Do. (male) . . . -41 



37. Do. (female) . . . .41 



38. Radio-ulnar of Bana esculenta 43 



39. 40. Bones of the forearm and 



hand of Bana esculenta 44, 46 

 41, 42. Pelvis of Rana esculenta . 48 



43. Horizontal section through the 



iliac bones, etc. . 



44. Femur of Rana esculenta 



45. Tibio-fibula of do. . 



46. Section of the tibio-fibula 



47. Right foot of Rana esculenta 

 48-50. Eye-muscles of do. . 55 

 51. Skull and orbital cavities of 



Bana esculenta . 



57 



FIGUEE PAGE 



52. M. levator bulbi of Bana es- 



culenta . ■ ■ -57 



53. Eye-muscles of Bana esculenta 58 



54. Facial muscles of do. . -59 



55. Muscles of the back and shoul- 



der ..... 60 



56. 57. Muscles of the lower jaw of 



Bana esculenta . . 61, 62 



58. Muscles of the throat, chest, 



and abdomen of do. . . 63 



59. Muscles of the hyoid bone and 



the tongue of do. . . 64 



60. Do. (from below) . . . 65 



61. Do. (from right side) . . 66 



62. Muscles of the throat, chest, 



and belly of Bana esculenta 68 



63. Muscles of trunk of Rana es- 



culenta (from the right side) 69 



64. Second layer of abdominal mus- 



cles of Rana esculenta, from 

 right side and below . . 7° 



65. M. obliquus internus . • 7^ 



66. Muscles of the back and shoul- 



der blade . . . • 1'^ 



67. Muscles of the back and pelvic 



girdle of Bana esculenta . 74 



68. Muscles of the shoulder, from 



below 77 



69. Muscles of the right shoulder 



and upper arm . . -78 



70. Right shoulder, from below . 79 



71. Muscles of the back and shoul- 



der 79 



72. Muscles of the chest, throat, 



and belly of Rana esculenta 81 



73. Muscle of right shoulder and 



upper arm . . . -83 



74. Muscles of the right arm of 



Rana esculenta . - .84 



75. Do. (deep layer) . . -85 



76. Muscles of forearm of JBana es- 



culenta . . . .86 



77. Muscles of hand of Bana es- 



cîilenta, volar surface . . 88 



78. Second layer of muscles on 



volar surface of hand of 

 Bana esculenta . ■ .88 



79. Muscles of hand of Bana es- 



culenta . . . -92 



80. Muscles of left thigh of do. . 95 



81. 82. Do. (ventral surface) . 98, 99 



