144 [DU. A. C. OUDEMANS). NOTES ON ACAKI. 



abdomen and cephalotorax , and a good distance from the lamellae ; 

 tliey are long and stili'. — Abdomen oval with narrow free blades 

 at anterior corners of doisuni. This free blade bears /«;o stilf hairs. 

 There are four longitudinal rows of stiff hairs ; the two outer ones 

 of six hairs each, the two inner ones of four hairs each; you may 

 also say: there are two dorsal rows of three hairs each, and a 

 submarginal row of 14 hairs. — The pseudostigmala are small 

 cups at the base of the lamellae, — The pseudostigmatic organs 

 are small and have a slender peduncle and a thick davate head. — 

 Ventral J ace. No striking particularities. — Lßgs, slender; femur 

 1 and 2 with thin peduncle, — Claws tridactyle, very heterodactyle. — 

 All the hairs, except those of the tarsi, are feathered, or serrated, 

 which is best visible in those of the dorsum of the creature. 



Habitat: Vesper ug pagenstecJi eri ^ck; most probably strayed here 



Patria: Banana (Congo). 



Found by Mr. Paul Hesse, at present in Venise. 



24. Emendation of the key to the species of Eremaeus. 



(Das Tierreich, Oribatidae, p. 43.) 



, ( With tr. lam E. hessei Oudms. 



( Without tr. lam 4a 



Lam. wider anteriorly than pos- 



\ leriorly E. exilis (Nie.) 



^' j Lam. narrower anteriorly than 



posteriorly E. tibialis (Nie.) 



25. Trichotarsus helenae Oudms. nov. sp. 



(With Plate 12, fig. 44—45,) 



Hijpopus. Length 165 ^u. 



The creature is related to T. trijilis Can, , T. ornatus Oudms, 

 and T. manicati Giard., and has Wkeiheaea^etiefi tivo dorsal shields. 

 The anterior dorsal shield (Fig. 44) has only two minute bristles 

 on the tip of the rostrum and two, situated on the edges, nearly 



