METAPHIDIPPUS. 263 
stout curving tooth near the insertion of the fang, and two much smaller teeth within two of their own 
lengths of each other, close to the base of the segment, meeting the apical hook of the fang when the 
latter is closed. Fang very long and sinuous, as long as the basal segment, having a long slender spur 
on the upperside near the base, its apex curving forward and slightly outward. Palpal bulb rather 
broad, bilobate. with a slender curved apical spine; tarsus slightly excavate at the base opposite the 
tibial spur, which is short, broad, and a little curved downward. ‘Tibia ii, with 2—2 9% spines 
beneath. . 
Hah. Costa Rica (Rogers). 
2. Metaphidippus nitidus. (Tab. XXIII. figg. 5, 3; 6, 2.) 
Dendryphanies nitidus, Peckh. Occas. Papers Nat. Hist. Soc. Wise. iii. 1, p. 53, t. 4. figg. 8, 84, 
8c(?),8a(¢g) (April 1896)". 
Type od, gynetype 2, in coll. Peckham. Total length, ¢ 6-8, 2 9-10 millim. 
Hab. Guatemata}. 
3. Metaphidippus tridentatus, sp. n. (Tab. XXIII. figg. 7, 7 a, }, 3.) 
Type, ¢, in coll. Godman & Salvin. Total length 4 millim. 
Dried example. Carapace deep black-brown, clothed on the cephalic area with white and ochreous scales; with 
a broad lateral band of white scales extending from the anterior lateral eyes almost to the posterior 
margin ; another broad band of white scales lies along the margin itself. The anterior central eyes are 
surrounded with ochreous scales; the clypeus is clothed with pure white scales. Abdomen with an 
elongate-oval chocolate-brown dorsal band, extending from the anterior margin to the spinners, its centre 
longitudinally clothed with a band of white scales; the entire margin encircled with a broad band of 
white scales ; central ventral area chocolate-brown, devoid of scales, the space between this and the 
marginal band thinly clothed with white scales. Legs and palpi more or less clothed with white scales. 
Coxe, femora, apex of patella, entire tibia, and apex of protarsus i. deep brown ; femur ii. almost entirely 
brown; apex of femora iii. and iv. brown; the rest of the legs yellow. Sternum, maxille, labium, and 
mandibles deep brown. 
Eyes—cephalic quadrangle slightly wider behind, with the lateral posteriors rather nearer the anterior laterals 
than to the posterior laterals. Mandibles very long, their basal segment two-thirds the length of the 
carapace, with a single large tooth near the insertion of the fang, curving forward, another shorter, 
straight, sharp tooth about midway, and a third very small tooth at the base of the inner margin. Fang 
very long, as long as the basal segment, sharply curved at the base, fairly straight, slightly sinuous and 
hooked at its apex, but without any spurs or cusps. Palpal bulb elongate, bilobate, with a short, sharply 
curved, black spine at its apex; tibial spur short and curving downward ; tarsus only slightly excavate 
at the base, opposite the tibial spur. Tibia ii. with a pair of spines at the apox and two spines situated 
longitudinally beneath. 
Hab. Mexico, Amula in Guerrero (H. H. Smith). 
4, Metaphidippus octonotatus, sp.n. (Tab. XXIII. figg. 8, 8a-c,¢; 9,9a,2.). 
Type d, gynetype 2, in coll. Godman & Salvin. Total length, ¢ 4:5, 2 5 millim. 
Colour similar in both sexes. Carapace dark red-brown; cephalic area black, clothed with white hairs and 
iridescent scales. Abdomen deep red-brown, clothed with iridescent scales, having an anterior marginal 
white band, broken up along the sides into three narrow oblique pale bands, and on each side of the 
dorsal area a broad black band broken up into four black square spots by three narrow transverse white 
bars. The coloration in the male is more distinct and vivid. Ventral area with a broad central dusky 
band. Legs yellow, i. and ii. darker brown ; protarsi and tarsi yellow, iii. and iv. pale yellow, the apex 
of the femora, patella, and tibia being dusky brown. Vulva consisting of an oval area, broader behind, 
