570 OPILIONES. 
as in Erginus erectispinus. Tarsal segments, i. 7, the basals not dilate; ii. 13 or 14; iii. 9; iv.10 or 11. 
Femur iv. apically somewhat dilate, clavate, with an internal inferior series of 9 or 10 separate denticles 
in the subapical half, and an external series of 6 or 7 separate denticles in the apical third. Tibia iv. 
with rows of small dentiform tubercles. Femur iii. with numerous denticles beneath, longer towards the 
apex. ‘Tibia iii. with a double apical series of short denticles beneath. 
Colour. Body dull olive-brown ; legs yellow-ochre, femur iv. reddish-ochre, the protarsi with faint narrow 
pale rings. Prosoma with a slender marginal lateral spot and a central posterior marginal line; the 
latter united with a central line and a short transverse line behind the first segment of the dorsal scutum, 
forming a yellow I-shaped mark. The dorsal scutum has also a single lateral marginal spot, while 
segments 3, 4, and 5 are more or less picked out in yellow on their posterior margins. 
Hab. Guatemaua, Cahabon (Sarg). 
5. Meterginus forcipatus, sp.n. (Tab. LIII. figg. 16, 16 a-c, ¢ .) 
Type ¢, gynetype @, in coll. Godman & Salvin. Total length, ¢ 9, 2 7:5 millim. (excl. mand.); femur. iv., 
3, 6:25 millim. 
¢. Similar in general character to Erginus pectinigerus, except that tarsus i. has seven segments, instead of 
six. The spines on the tergal third segment are very stout at their base, forming sharp-pointed cones ; 
the first and second segments bear also each a pair of very minute but distinct tubercles. Tarsal segments, 
i. 7, none dilate; ii. 12-14; ui. 8; iv.,8 9,9 ¢. 
Legs iiii. smooth, the femora with a few setigerous tubercles. Coxe iv. very much enlarged and widely 
divergent behind, bearing a stout apical spur and a pair of small tubercles at their base, close beneath 
trochanter ili. Trochanter iv. has on the posterior margin on the outer side a small bifid tubercle; on 
the inner side a large caliper-shaped process, formed by a shorter anterior spur and a larger posterior 
hooked spur, these two meeting a pair of tubercles, one each on the external margin of the ventral 
segments 4 and 5. Femur iv. is short, straight, incrassate, becoming more attenuate apically, having an 
external series of 7 or 8 short, curved, separate denticles in the basal half, continued apically by a series 
of diminishing tubercles ; on the infero-external side about the middle is a double series of 3 or 4 large 
separate teeth, and near the apex a pair of shorter teeth; on the inner side is a series of 7 or 8 short, 
stout, conical teeth, extending from near the base almost to the apex. Patella, tibia, and protarsus iv. 
are covered with dentiform tubercles, a more conspicuous series lying on the inner margins of the tibia 
and protarsus. 
©. Similar in structure to the 3, except as regards the usual difference in the segments of tarsus i., and the 
absence of denticles on femur iv. and the processes on trochanter iv. and on the free segments ; coxa iv., 
however, present, even in this sex, a small hook-like spur on the inner side, but there are no tubercles 
on the margins of the ventral segments to meet them. 
Colour. Body deep russet-brown, with a purplish tinge. Legs i.,, ii., iii. olive-green, the protarsi with narrow 
pale rings; femur iv. black. Very little dorsal yellow pattern is visible in the ¢, but is strongly 
marked in the 2. The prosoma and anterior half of the dorsal scutum bear a vivid submarginal filigreed 
yellow bar. The dorsal scutum bears a large indistinct central blotch of minute yellow dots ; segments 
3,4, and 5 are margined posteriorly with yellow, and the free segments also are picked out with a 
transverse yellow line. 
Hab. Guatemaua, Vera Paz (Sarg). 
PCECILAIMA. 
Pecilema, C. L. Koch, Uebersicht des Arachn. ii. p. 21 (1889). 
Type P. u-flavum (Perty). Brazil. 
The species here referred to this genus differs from Erginus chiefly in possessing 
eight segments, instead of six, in tarsus i. The eye-tumulus is three times longer, 
