ERGINUS. | 567 
latter posteriorly also. A short yellow line runs from the third scallop to the margin, while segments 4 
and 5 are indicated by yellow lines. : 
2. Similar to the g in structure and colour, except that the basal segments of tarsus i. are not at all 
enlarged, and femur iv. is simple, not armed with denticles. 
Hab. GuatTEMALA, Petet (Sarg). 
16. Erginus rectus, sp.n. (Tab. LIII. figg. 10, 10a, ¢.) 
Type, 3, in coll. Godman & Salvin. Total length 6 millim. (excl. mand.). 
¢@. General characters similar to those of H. pectinigerus. The spines on the tergal third segment are very 
short. Tarsal segments, i. 6; ii. 13; iii. 8; iv. 9. Mandible: basal segment granulose, the movable 
digit being similar in length and in the character of its denticulation to that of Z. erectispinus. 
Legs also generally similar to those of the allied species, tibia and femur iii. being furnished with dentiform 
tubercles, tibia iv. with simple tubercles. Femur iv. with an internal inferior straight (not sinuous) 
series of 16 denticles (9 and 10 being the longest, one-third longer than the diameter of the segment), 
the basal denticles separate, the apical more or less basally coalescent, occupying the whole length of the 
segment; with also a dorsal series of eight short separate denticles, 4 and 5 being the longest, occupying 
the basal two-thirds, and a ventral row of small tubercles. Tibia and femur iii. bear an inferior series 
of dentiform tubercles, and tibia iv. is furnished with rows of tubercles of the same character. 
Colour. Body pale ochre-brown ; legs paler. Posterior and lateral margins of the prosoma, and the lateral 
margins of segments 1, 2, 3, 4 of the dorsal scutum, outlined with yellow; segment 5 with a short line 
on each side on its disc; a short yellow line runs also from the third scallop to the extreme lateral 
margin. 
Hab. Guatemata, Petet, San Juan Chamelco (Sarg). 
17. Erginus pectinigerus, sp. n. (Tab. LILI. figg. 11, lla, 4, ¢.) 
Type 3, gynetype @, in coll. Godman & Salvin. Total length, d & 9, 9 millim. (excel. mand.); femur iv. 
5 millim. 
3. General characters similar to those of Pacilema rastellifera. Eye-tumulus with a crest of very minute 
tubercles on each side above the eye. Spines on the third tergal segment variable in length, in some 
examples merely tubercles. Tarsal segments, i. 6, the basal three slightly dilate; ii. 13; iii. 8; iv. 9. 
Mandible: basal segment granulose on the outer surface; the movable digit of the distal segment is as long 
as the dilate basal portion, having a long basal and four or more widely separate triangular teeth towards 
the apex ; the fixed digit having four small teeth with several small adjacent apical cusps. Legs similar 
in general character to those of Pacilema rastellifera, except that trochanter iv. has a small bifid spur, 
not strongly curved as in that species ; and the denticles in the inferior series on femur iii. are longer in 
proportion. 
Femur iv. with an inner inferior serratiform series of from 14-18 very long, curved, scimitar-like denticles 
‘nearly three times as long as its diameter, basally coalescent, usually free apically, often coalescent in 
groups, the apical denticle strongly curved towards the patella; with a dorsal series of 8-9 curved 
separate denticles in the basal two-thirds of the segment, about as long as the diameter of the segment, 
not basally coalescent ; also an external inferior series of 3 long and 1 very short separate denticles in 
the basal third. 
Colour. Body rich olive-green, blended with reddish-ochre ; legs yellow-ochre. The prosoma and segments 
1, 2, 3 of the dorsal scutum margined laterally with yellow scallops ; the latter also with an indistinct, 
broken, central yellow line; segments 4 and 5 also indicated with yellow, the latter by a short yellow 
line on each side on its disc. 
Q. Similar to the g in structure and colour, except that the basal segments of tarsus i. are in no way dilate, 
and femur iv. is simple, without denticles. 
Hab. GuaTemaLa, Guatemala city, Tactic, Cunen, Cahabon (Sarg). 
