Platk 

 32. Skult. of Arapaima. 



/CiROLANA GALLiCA, 11. sp., H. J. Hansen. 

 „- I CiROLANA SciiMiuTir, ti. sp., H. J. Haiiseu. 



I CiROLANA CRANCriii, Leacli. 



'^CiROLANA Hansenit, Bonii. 



I CiROLANA Hansenii, Bonu. 



34. I EuRYDicE TRUNCATA, Norm. 

 ' EuRYDicE PULCiiRA, Leacli. 



f EuRYDiCE PULCHRA, Leacli. 



35. \ EuRYDicE APFiNis, n. sp., H. J. Hansen. 

 1- EuRYDiCB iNERMts, H. J. Hansen . 



36. 1 



37. I Pelomyxa palustris (Greeff). 



38. J 



39. Sk0ll, Pelvis, and Knee-joint of the Mctsk-Duck. 



40. Membranous Lahyrinths of Sharks. 



41. 1 



^„ \ Jacobson's Organ in Sphenodon. 



42. J ^ 



43. Isis iiiPPURis. 



44. Membranous Labyrinths oi Echinorldnus and Cedraciun. 



