1896.] SPIDERS FROM THE LOWER AMAZONS. 727 
each emitting from its summit a single, long, fine bacilliform hair. 
When first captured these were perfect ; they have since, however, 
become effaced, except at the base of the abdomen. 
Ocular tumulus tuberculiform, globular. Anterior central eyes 
slightly smaller than anterior laterals ; a little more than the radius 
apart, nearly one diameter from anterior laterals, Anterior row 
straight. Posterior centrals very small, one diameter from anterior 
centrals, almost in contact with posterior laterals; the latter 
ellipsoidal, one quarter of its axis from anterior laterals, which is 
greater than the diameter of either of the anterior central or 
anterior lateral eyes. 
Sternum broader than long; sigilla encrusted and _ scarcely 
visible. Labiuwm quadrate, apex transversely studded with numerous 
minute cusps. Cowa of pedipalp produced at anterior apical angle 
into a long spur-like prominence ; its anterior surface studded with 
minute cusps, clustered more closely towards basal anterior angle ; 
the joint is stouter, longer, and more thickly fringed with rufous 
‘hair than in Paratropis papilligera, 9 . 
Legs. Tarsi and protarsi i. and 1. furnished beneath with 
two series of paired teeth, each pair obliquely situated ; but their 
position is not absolutely regular. Tarsi and protarsi ui. and iy. 
with two series of long stout spines beneath. 
Tarsal claws. Three on tarsi i. and ii., superiors with single 
denticle towards base; inferior claw present. Tarsi iil. and iv. 
with two superior claws, each with a single denticle towards base, 
inferior claw obliterated. Glandular tubercles on tibie. Protarsi 
and tarsi similar in position to those of P. papilligera, 9. 
Spinners, two only ; posterior pair less than one-half the length 
of abdomen ; basal joints equal in length, apical joint one-fourth 
longer than basal joint. Anterior pair of spinners obsolete. 
Mandibles similar to those of P. papilligera in character, but the 
two rows of teeth with which the fang-groove is furnished differ 
somewhat in number and arrangement. Outer row containing 7 
stout teeth ; inner row containing 14 teeth of smaller size. Tooth 
no. 7 in outer row stands opposite tooth no. 14 of the inner row, 
whereas in P. papilligera it stands opposite no, 12 of the inner 
row. 
Comparative measurements in millimetres.— 9 . Carap. 6°75 long., 
6 lat. Abd. 7:5 long., 5°75 lat. Ceph. area 5:25 long. Stern. 
3 long., 3°75 lat. Coxa of pedipalp 3 long., 1°5 lat. Pedes, long. 
i, 20—i1, 15—ii. 13—iy. 20. Artl. i. long. 3—1—5—2—4—3— 
1°75; iv. 25—1°75—5—2—4—45—2. Postr. mam. 3 long.; 
artl. 1—1—1-25. Antr. mam. absent. Mandib. 3 long. 
A single female, agreeing almost entirely in general appearance 
with the female of Paratropis papilligera, was taken under a log in 
the damp forest at Breves, on the Lower Amazons, near the Island 
of Marajo. 
* 
