FIG. 952. Conochilus unicornis Rousselet. A, Colony. X4O. 

 B, Single animal isolated. X 150. (After Weber.) 





FIG. 953. Conochiloides natans 

 Seligo. X8y. (After Hlava.) 



FIG. 954. Psetidoecistes rotifer Sten- 

 TOOS. X 150. (After Stenroos.) 



616 



FIG. 955. Megalotrocha alboftavicans 

 Ehrenberg. Single individual. 

 X8 7 . (After Hlava.) 



FIG. 956. Cephalosiphon 

 limnias Ehrenberg. Xa8o. 

 (After Dixon-Nuttall.) 



