METERGINUS. 569 
has a row of tubercles above the eyes, and there is a pair of tubercles on the first tergal segment and two 
long spines on the second (this character is not, however, constant in the species in which tarsus i. has 
7 segments). Femur iii. and tibia iv. are smooth, without tubercles or denticles. Tarsal segments, i. 7, 
the basal four slightly enlarged ; ii. 15-16, both tibia and protarsus being segmentate and antenniform ; 
ili. 9; iv. 10. The protarsi of all four pairs are scopulate on the apical third or half. Femur iv. with 
an internal inferior and dorsal subsimilar series of short coalescent denticles in the basal third. Basal 
segment of the mandible with tubercles. 
Colour. Body rich olive-green-brown ; legs dull reddish-ochre, olive-green in the @, like the protarsi and tarsi 
in the ¢. Prosoma with a narrow posterior marginal and also a broad lateral filigreed yellow marginal 
blotch, extending halfway down the margin of the dorsal scutum on each side. Dorsal seutum with a 
central filigreed yellow blotch, terminating in a central yellow line between the cusps on segment 3 
this segment is margined posteriorly, and 4 and 5 are also picked out with yellow. 
2. Similar to the ¢ in structure and colour, except that the legs are a little shorter, the basal segment of 
tarsus i. is not at all enlarged, and femur iv. is simple, without the basal denticles. 
> 
Hab. Guatemata, Tamahu (Sarg). 
2. Meterginus tibialis, sp.n. (Tab. LIII. figg. 13, 13a, 3.) 
Type, d, in coll. Godman & Salvin. Total length 6-5 millim. (excl. mand.); femur iv. 12 millim. 
3. General characters similar to those of M. basalis, with the four tergal tubercles, long legs, and 
tubercles above the eyes. Femur iii. with a more conspicuous series of separate dentiform tubercles 
beneath. Tibia iv. with numerous dentiform tubercles throughout its length beneath. Tarsal segments, 
i. (broken off); ii. 15-16, both protarsus and tibia being antenniform, segmentate ; iii. (broken off) ; 
iv. 11. Protarsi with from one-fourth to one-third scopulate. 
Colour. Body deep purple-brown, the colour of the dorsal area similar to that of M. basalis, except that the 
prosomatic blotches are more conspicuous; legs deep red-brown. 
Hab. Guatemaua, Cunen (Sarg). 
3. Meterginus dorsalis, sp.n. (Tab. LIII. figg. 14, 14a, 3.) 
Type, 3, in coll. Godman & Salvin. Total length 5°75 millim. (excl. mand.); femur iv. 6°5 millim. 
General characters similar to those of M. apicalis (infra). Basal segment of mandibles with a few marginal 
warts; apical segment much smaller than in the above-mentioned species. Tarsal segments, i. 7, the 
basals not dilate; ii. 12; iii. 8; iv. 10. Spines on the tergal third segment recurved. 
Femur iv. with a dorsal series of 12 or 13 short (none longer than the diameter of the segment) separate 
denticles on the basal two-thirds; with also an external series of 8 separate denticles (one or two as 
long as the diameter of the segment) on the apical third; also an internal series of 8-10 separate 
denticles on the subapical half. The femur itself is longer than in M. apicalis, otherwise the species are 
very similar. 
Colour. Body and legs unicolorous yellow-ochre. Prosoma with a slight, filigreed, marginal, yellow blotch and 
a short, central, posterior, yellow marginal line. Segment 3 of the dorsal scutum limited posteriorly by a 
fine yellow line ; segments 4 and 5 also slightly indicated by short transverse yellow lines on each side. 
Hab. Guatemata, Tecpan (Sarg). 
4. Meterginus apicalis, sp.n. (Tab. LIII. figg. 15, 15a, 3.) 
Type, d, in coll. Godman & Salvin. Total length 5 millim. (excl. mand.); femur iv. 5°75 millim. 
3. General characters similar to those of Erginus pectinigerus, except that tarsus i, is furnished with 
7 segments, the basals being cylindrical, not dilate, and the series of femoral denticles are in the apical 
half only. Eye-tumulus with tubercles above the eyes ; tergal spines fairly long. Apical segment of 
mandible very much developed ; basal segment smooth, but with a few warts on the outer side, otherwise 
BIOL. CENTR.-AMER., Arachn. Opil., Vol. IL., January 1905. Apt 
