(dr. a. 0. OUDEMANS). NOTES ON ACaBI. 133 



rounded posterior edge ; 10 pair of the same hairs are placed 

 symmetrically on it, a group of 4 pairs anteriorly, a group of three 

 pairs in the middle, and a group of again three pairs posteriorly. 

 On the very post, edge a pair of minute hairs. 



Ventral side (Fig. 63). Esimerà I forming a long V and joined 

 to the long sternum. Epimera I running toward the post, end ot 

 the sternum, but not leaching it ; they join the epimera III. A 

 curved chitinous bar limiting outwardly the coxal plates II runs, 

 parallel to epimera II, toward the distal end of epimeron III, but 

 does not reach it. Epimera III normal, joining to a second sternum 

 which runs backward up to the genital aperture, passing the united 

 normal epimera IV. — Genital aperture usual, with the two pairs 

 of interior suckers. Anal opening behind the cannon-shaped suckers. — 

 Near the distal ends of epimera II a pair of indistinct spots, which 

 certainly are rudimental minute suckers. Before epimera IV a pai 

 of more distinct spots ; most probably still functional minute suckers. 

 Before and touching the suckerpla te a pair of small suckers. Sucker- 

 plate broad-heart-shaped, with 8 suckers, arranged 2, 4, 2. The 

 first two suckers are pedunculate, and as their peduncles grow 

 thicker towards their attachment on the body, the suckers are 

 connon-, or telescope-shaped. They are movable, for in none of 

 the more than 20 individuals in my possession they have the same 

 direction. (See also fig. 64). The inner pair of the second row is sligthly 

 larger than the outer one, and as usual provided with two central 

 points. The last row of two suckers touches the inner pair of the 

 second row, but is remote from the posterior edge of the plate ; 

 and this again is remote from the posterior edge of the abdomen. 

 Capitulum or rostum small, scai'cely extending beyond the ant. 

 edge of Cephth ; a little excavate ant., and bearing two hairs, 

 slightly longer than the capitulum itself. 



Legs. First leg (without the sticking hair) as long as the ab- 

 domen, robust in comparison with the other legs. Second and 

 third of equal length and shorter than I; fourth leg slightly longer 

 than céphalothorax, and the less in size of all the legs. Femur 

 and genu 1 and II not fused. Tarsi I and II proximally with long 

 Tijdschr. voor Entom, XL VII. 10 



