254 
Tick Abnormalities 
dorsally, the caudal protuberance is accompanied by two rounded 
protrusions, the festoons are somewhat underdeveloped. Viewed 
Fig. 6. RMpicephalus longiceps Abnormal: protrusions above the caudal process; 
underdeveloped adanal shields of the left side. 
ventrally, the adanal shield on the left side is reduced to a small pro¬ 
jecting chitinized point. A normal d is illustrated by Warburton in 
Parasitology, v. 13, Fig. 6. 
Specimen 7 
(Fig. 7.) Amblyomma ynarmoreum Koch, 1844, ^ (N. 240), from 
Khartoum, Soudan, 1908 ; sent by Dr A. Balfour. This example was 
found by Mr L. E. Robinson whilst examining our numerous specimens 
of this species. The abnormality here figured is remarkable in that 
Fig. 7. Amblyomma marmoreum (J. Abnormal: irregularities of the festoons. 
there are but eight festoons present and that they show great irregu¬ 
larities and partial fusion, especially on the right side. The ventral 
festoons correspond with those seen dorsally. Normally, there are 11 
festoons present as in other ticks which possess festoons. 
