OCR Text |
Show 1902.] NEW IIARVEST-SPIDERS. 403 Family T r i^ n o n y c h id .e . The principal characters of the genera of this family in its restricted sense may be tabulated as follows:- a. Ocular tubercle very high......................................................................... b. Ocular tubercle low. a1. Ocular tubercle upon or close to the anterior margin of the carapace. a2. Anterior area of dorsal scute shorter than the rest of its components taken together........................................................... h Anterior area of dorsal scute as long as the rest of its components taken together........................................................... bl. Ocular tubercle some distance behind the anterior border of the carapace. « 3. Anteocular portion of carapace horizontal ; palpi strongly spined; claw of 3rd (? of 4th) leg strongly branched ............................................................................................ b3. Anteocular portion of carapace sloped downwards and forwards; palpi weakly spined; claws of 3rd and 4th legs weakly branched .................................................................... Genus T r ic e n o n y x Sorens. T r ic e n o n y x o o r ia c e a , sp. n. (Text-fig. 83, B & C, p. 408.) § . Colour deep brownish ; legs yellow, clouded with black; mandibles and femur of palp black. Dorsal surface (text-fig. 83, B & C) coriaceous, the segments of the carapace and abdomen each marked by an ill-defined series of low tubercles. Ocular tubercle conical, bluntly rounded, neither spinous, tubercular, nor granular. Abdominal sterna smooth. Mandibles smooth above, basal segment a little longer than wide, with one apical tubercle above, second segment with a few granules. Palpi moderately robust, the trochanter with a pair of tubercles below; femur with a pair below the base and one near the distal end, about four, whereof two are spiniform, above and two or three internally; patella with one on the inner side beneath ; tibia with three pairs of variously sized spines or tubercles ; tarsus with two inner and three outer spines. Coxa of 1st leg without spines or long tubercles, simply tubercular like that of the 2nd leg below; that of 3rd less tubercular, that of 4th nearly smooth below, some strong tubercles on the posterior side of the 2nd and anterior side of the 4th ; groove between coxae of 3rd and 4th tubercular; trochanters of 1st, 2nd, and 3rd weakly tubercular, femora of the same and tibia of 1st and 2nd also weakly tubercular; tarsus of 1st with three segments, of 2nd with eight, of 3rd and 4th with four ; a pair of spines at the distal end of the protarsus of 1st, 3rd, and 4th; three distal segments of 3rd tarsus subequal in length, antepenultimate segment of 4th tarsus shorter than the sum of the two distal segments but longer than either. £ Differs from $ in having a strong cephalic constriction and the posterior portion of the body more elevated; the ocular tubercle triangular, more sharply pointed; the maxillary pro- Acumontia. [Nuncia. Tricenonyx & Diasia. Sorensenella. LomaneUa. |