/. ricinus 



149 



forward and macula anterior. Gapitulum 500 fi long ; base trapezoid, 

 broader in front, slightly convex behind, without comua. Hypostome 

 with six or eight marginal teeth, increasing in strength and con- 

 nected by crenulations, two large basal teeth being directed ventrally. 

 Palps broad, article 2 as broad as long, impressed dorsally, article 

 3 slightly longer than 2. Legs : long and strong ; coxa I with internal 

 spine overlapping coxa II, and slight external tooth. A single external 

 conical tooth on coxae II-IV, the postero-internal angles of coxae II 

 and III are sub-dentate. Tarsi long, tapering gradually. 



Fig. 140. I. ricinus i : capitulum in dorsal and ventral aspects, x 70. Specimen from 

 Coilessan, Scotland. (N. 933. Original, G.H. F. N. del.) 



Fig. 141. I. ricinus s ■ tarsi 1 and 4 seen in profile, x 33. (N. 930, drawn from balsam- 

 mounted specimen. Original, G. H. F. N. del.) 



Fig. 142. I. ricinus : (C) digit x 155, and (H) hypostome x 100 ; (C) digit x 220, and 

 (H) Hypostome x 75 of cf and ? respectively. (Neumann, 1899, Figs. 2, 3, 

 illustrating the structures in 2\ ovatus. We find them identical in I. ricinus.) 



