A. C. OUDEMANS. ACARI. 123 



Epïstoma (Fig. 16) triangular, with rounded top and slightly wavy edges. Styli knife- 

 like, curve. 



Mandibles (Fig. 17) short; if vve consider the membranaccous slicatli of each mandible 

 as the trochantero fémur, the genu is short, scarcely longer than wide ; the tibia] part of the 

 tibiotarsale scarcely longer; the basitarsus or fixed finger longer. Seen from above (fig. 18) 

 the fixed finger shows two basai dark chitinizations (the condylus of the movable finger), an 

 internai transparent sharply pointed membrane, before which another transparent serrate mem- 

 brane is distinctly visible, and externally the curious copulation-organ. Seen from the internai 

 side (Fig. 20) the chelae show better the condylus of the movable finger or telotarsus and 

 the two transparent membranes with serrate edge (curious things, unknown to me in other 

 Parasitidae); further the enormous flagellnm with broad base, rodlike smooth proximal half 

 and haired distal half: finally the curious more or less spoon-shaped or boat-shaped copul- 

 ation-organ of which the keel is turned toward the movable finger, and the edges are suf- 

 flexed and serrate (see also fig. 19). The basitarsus or fixed finger is provided with an end- 

 incisor and two minute incisors, a rniddle-sized backwardly-curved sharply-pointed canine and 

 a range of about S minute triangular molars. The telotarsus or movable finger is provided 

 with a single end-incisor, a range of about 6 canine-shaped middle-sized teeth, diminishing in 

 size backward, and a triangular strong molar which fits in a cavity of the fixed finger. A 

 tibial sense-organ, small, rodlike, lies in a dorsal impression at the base of the basitarsus or 

 fixed finger. Fig. 19 represents an external aspect of the chela, the flagellum and the copu- 

 lation-organ. A little behind the canine of the fixed finger you observe a little hole or open- 

 ing; in which I in vain searched for a sense-organ. 



Maxillae (Fig. 22). The base of the coxae is ornated with an extremely fine chitinous 

 marking which is better understood by a figure than by a minute description. The distal 

 portion of the coxae is deeply cleft, showing a triangular gap which is flanked by three 

 pairs of bristles. Near the chitinous junction of the coxae with the palp again a bristle. 

 Horns or external malae short, wide, pointed. Internai malae slip-like, small. Médian portion 

 (fusion of internai slips of internai malae?) long, fiât, ending in two smooth slips, imitating 

 a tritosternum. Lingua not discernible. Trochanter ventrally with médian tooth. Moreover 

 the palps are normal, showing no peculiar hairs or setae or appendages. 



Legs I shorter than the length of the body, longer than its width, slender. Of the 

 joints the trochanter is the shortest, the tarsus the longest. Tarsus with basitarsus, fémur 

 with basifemur. No paratarsus. Legs II, III and IV thick, curve, with crenulate posterior 

 edge of fémur and genu, also of tibia II. Tarsi with basitarsus; femora with basifemur. Fémur 

 III with long anterior bristle; genu III with shorter one ; basitarsus III with still shorter one. 

 Fémur IV and basitarsus IV with very long anterior tactile bristle. Paratarsi (Fig. 2 V 1 with 

 rather minute claws and large membranaceous empodium (sucker). 



Habitat? most probably the créature lives parasitically. 



Named in honor of Prof. Dr. Max Weber. 



