PLATE XV. 



Goniopygus zitteli Clark (p. 52). 

 U. S. Nat. Mus. 12234, type. 



Figure la. Upper surface of the test. 

 lb. Lower surface of the same, 

 lc. Interambulacrum, X 3. 

 Id. Ambulacrum, X 3. 

 le. Side of tubercle, X 10. 

 If. Apical system, X 4. 

 lg. Portion of interambulacrum, X 4. 

 lh. Lower portion of ambulacrum, X 10. 

 244 



