Species 0/ UiocycliJse /row Britisli East Africa. 333 



Dorsum rugosura, luteralitcr sulcis parura profiuulis sulcatum, 

 per totum luiitritudiucra carinatum ; carina valida, obtusa, postice 

 tortuosa. Solea uniculor, zona mcdiana granulosa, laterales 

 transverse sulcata?. 

 Longit. dorsi mill. 34 ; clypei 26; soleae 72. 



J/ab. Between the Igeinbi Hills and Nyeri {Robin Kemp). 



Ditleriiig tVom the preceding species in its larger size, 

 twisted carina, less forwardly placed pulmonary oritice, and 

 by the total absence of all spots, either light or dark. 



The reproductive organ (fig. 8) differs from that of 

 T. kimj'i in the sliajte of the atrium, which terminates above 

 in two more lengthened, divergent, and less rounded points. 

 'J'he neck of the bursa copulatrix is less long, more jntted, 

 find terminated by a cylindrical arch Mhich is wanting in 

 7'. kempi. The penis is less twisted and of a different shape. 

 The lower flagelluni (fig. 11) is shorter, less pitted, and 

 greatly swollen by the rounded eminences of a tissue 

 which is more transj)arent than that of the flagellum ; it ends 

 on its free side in a small oval sacl of the same nature as the 

 lateral eminences. The upper flagellum (fig. 10) is very 

 small and permits a view of the white calcareous gland, 

 which is situated on the interior of its base ; in the atrium 

 I found five darts, much shorter and broader than those of 

 T. hn)pi (tig. 9), and I believe this to be the first case, 

 up to tlie present time, in which an uneven number of darts 

 has been noticed. 



Trichotoxon {Dendrotoxon) keniensis, sp. n. 

 (PI. VUI. ligs. o, 4.) 



T. sat parvulum, ochraceo-aurantiaco unicolor, antics pallide 

 ochracfcura. Clypeus postice rotundatus, granulosus ; apertura 

 palliali angusta ; apertura pulmonea distincte postmcdiaua. 

 Dorsum obtuse carinatum, rugoso-granulosum ; lateraliter sulcis 

 obliquis, parum profundis, sulcatum. tSolea, medio pallida, zonis 

 lateralibus pallide bruuneis, transverse sulcatis. 



Long, dorsi mill. 17 ; clypei 13 ; solea) 50. 



Hab. Mt. Kenia, at an altitude of 9000-10,000 feet {Robin 

 Kemp) . 



Differing from the two preceding species in its smaller 

 size, in its granular and not longitudinally furrowed shield, 

 on the posterior half of which is situated the pulmonary 

 orifice, in the colour of the shield and dorsal surface, which 

 is of a pale orange-ochre, disappearing on the posterior 

 portion of the animal, and in the brownish colour of the 

 lateral zones on the side. 



