DISEASE RELATIONS 

 Unstudied. 



REMARKS 



The frequent records of specimens taken from grass are due to 

 the large size and conspicuovisness of the rhinoceros amblyorama. 



This species often has been referred to as A. petersi (Karsch, 

 1878), but according to Schulze (1932A), this najoe is synonymous 

 with A. rhinocerotis (de Geer, 1778). This decision is acceptable 

 for tTie present, but it must be noted that Theiler (correspondence) 

 is far from certain of its validity. Obviously needed is a careful 

 stiiiy of the original material and literature by a competent contem- 

 porary student with full access to pertinent specimens. 



The specific name rhinocerotis (de Geer, 1778) frequently has 

 been applied to Dermacentor rhinocerinus (Denny, 18^-3). However, 

 as Bequaert (193 OB j pointed out, DSnitz (191 OB) has long ago indi- 

 cated that de Geer's specimens belonged in the genus Amblyomma be- 

 cause of their longer palpi. 



The remarkable parallel or convergent evolution of rhinoceros- 

 infesting Amblyomma and Dermacentor ticks, and the relationship of 

 Cosmiomma hippopoCamense (Denny, 1843) > a hyalommalike beast, is 

 worthy of speciaJ. study. 



The capsule of larval haller^s organ in A. rhinocerotis has 

 been noted by Schulze (19^1), who atlso (1950A7 discussed the adult 

 dentition of this species. 



IDENTIFICATION 



Males , at least 8.0 mm. long and 7.0 mm. wide, are as large 

 as any other African amblyorama. The scutvun lacks lateral grooves, 

 has bicolored festoons, small and flat eyes, extensive pale 

 (yellowish) ornamentation on a dark (reddish- brown) background, 

 and a few large scattered punctations. The leg segments have nar- 

 row pale distal rings. 



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