EXPIANATION OF PLATE XIII. 
Photographs of the type-specimens of Plumatella (A frindelia) 
testudinicola on the carapace of Kachuga lineata. 
Fic. 1.—The whole zoarium (nat. size). 
»,  2.—The central part of the same zoarium (enlarged). 
showing statoblasts (s) 27 s7tw. 
