PLATE LXXII. 



Macrofneustes mortoni (Conrad) (p. 155). 

 U. S. Nat. Mus. 146468. 



Fir.uRE la. Upper surface of the test, 

 lb. Lower surface of the test, 

 lc. Lateral surface of the test. 

 Id. Posterior surface of the test. 



Figure 2a. Upper surface of the test. 

 2b. Lower surface of the test. 

 2c. Lateral surface of the test. 

 2d. Posterior surface of the test. 

 39800°— 15 25 



Sarsella gregoryi Clark, n. sp. (p. 155). 

 Am. Mus. Nat. Hist., type. 



