154 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



EXPLANATION OF PLATE 25 



PAGE 



Fig. la. Macropneustes mexicanus Kew. Upper surface of test. Cal. 



95 



Acad. Sci. No. 375, type. X 134 



76.5 

 Fig. lb. Macropneustes mexicanus Kew. Lateral surface of test. 



92 



Cal. Acad. Sci. No. 375, type. X — 



76 



