Calmonia signifer Clarke 



(See plate 8) 



Fig. I A large entire individual in which all the essential char- 

 acters are well displayed. Attention may be directed to 

 the short head, obscurely lobate glabella, small anterior 

 eyes, angled extremities of the segments becoming 

 sharper backward, the six pairs of pygidiae lappets and 

 the relatively short caudal spine 



2 A smaller entire individual with exsert genal spines and 



a longer caudal spine. The thoracic segments are only 

 ten and one seems to be buried at the junction with the 

 pygidium 



3 Head and thorax 



4 An entire but somewhat distorted specimen 



Calmonia signifer var. micrischia Clarke 



Fig. 5 A small entire individual 

 6 A larger entire example 



Locality: Ponta Grossa, Sao Paulo, Brazil 



is8 



