EXPLANATION OF PLATES XII. AND XIII. 



Fig. 



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 6. 



9. 

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Head of Macropsi/lla hercules . 

 ,, Stephanocircus simsoni 

 „ IscknopsijUus hexactenm 

 „ Ctoiop/itkalmxs si'i/nis . 

 „ Palaeopst/lla gracilis . 

 „ Ctenocephalus canis 

 ,, Pulex initans 

 „ Malarops>/lla ffrossire/itris 

 ,, Dolichops>/Ua sf'jlosus . 

 „ Ceratophyllus cohtmbae 

 ,, larva of Ceratophyllus fringillai 

 Antenna of Ni/cteri(hps>jlla eusarca 

 „ Ceratophyllus sciiirorum 

 „ Spilopsyllus leporis 

 ,, Ornithopsylla laetitiae 

 ., Ctenocephalus felis 

 ,, Pulex irritans 

 ., Echidnophaga gallinaceus 

 ,, Hectopsylla psittaci 



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136 

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