Genus Ornithodoros 



41 



transverse pre-anal and a transverse post-anal groove or furrow, and a 

 post-anal median groove 1 . Eyes present or absent. 



Type species Ornithodoros savignyi (Audouin). 



N.B. 0. savignyi differed so markedly from the species of Argas 

 known when Koch established the genus Ornithodoros that the diagnoses 

 of the two genera presented no difficulties. More recently described 

 forms have, however, tended to narrow the gulf between them. Argas 

 brumpti, for example, has some features more characteristic of Ornitho- 

 doros, while Ornithodoros tholozani in some respects approaches Argas. 



The genus Ornithodoros includes 11 well established species: 



42 

 46 

 55 

 57 

 59 

 62 

 63 

 65 

 67 

 70 

 71 



78 

 79 

 80 



Doubtful species are : 



12. canestrinii ........ 



13. papillipes 



14. morbillosus 



Suppressed are: 



americana = turicata 



miliaris = erraticus 



coniceps • = talaje var. coniceps 



rudis = talaje 



reticulatus Gervais, 1849-51, in de Gay, Zoologie, p. 44, 

 PI. V, Fig. 8. Latin description in two lines 

 and figure. Species purely nominal (Nn., 

 1896, p. 41). 



1 Refer to Fig. 1, p. 7. 



