1963 ] Chickering — Mecynometa globosa 183 
promargin; the retromargin has four teeth, the first of which is 
relatively large, the other three smaller. The curled hairs on the 
fourth femora appear to be arranged in two longitudinal rows with 
twelve in each row. Published figures of the epigynum differ con- 
siderably. This has led me to make a rather careful examination of 
these organs on several specimens. I have noted considerable difference 
in the appearance of this organ in different individuals. Perhaps these 
differences can be attributed to variations in internal tension and 
degree of chitinization and development following the process of 
moulting. Figures 4 and 5 illustrate differences noted in two 
females among specimens in my collection. 
Collection records. Both Pickard-Cambridges (1889-1903) and 
Keyserling (1893) gave Guatemala as the locality for the original 
specimens. In addition to the specimens reported by Petrunkevitch 
(1925) and Banks (1929) as cited in the introduction tO' this paper 
I can now report collection of the species as follows: numerous 
females from Barro Colorado Island, Frijoles, and the Canal Zone 
Experiment Garden, all in the Canal Zone; four specimens from El 
Valle, Panama. I also have a total of four males in the collection. 
One of these is from El Valle, Panama; the remaining three are from 
Barro Colorado Island, C. Z. The described male was taken in 
August, 1936. All specimens in my collection have been taken in July 
and August during my repeated collecting trips to the Canal Zone and 
other parts of Panama beginning in the summer of 1928. 
Bibliography 
Banks, Nathan 
1929. Spiders from Panama. Bull. Mus. Comp. Zool., 69 : 53-96, 4 pis. 
Bonnet, Pierre 
1957. Bibliographia Araneorum. 2. 3me partie. Toulouse: Les Artisans 
de rimprimerie Douladoure. 
Cambridge, O. P.-and F. P.-Cambridge 
1889-1903. Arachnida-Araneida. InrBiologia Centrali-Americana. Du- 
lau & Co. London. 
Petrunkevitch, Alexander 
1925. Arachnida from Panama. Trans. Conn. Acad. Arts and Sci., 27: 
51-248. 
Simon, Eugene 
1907. Arach. rec. par Fea sur la cote occid. d’Afrique I. Ann. Mus. Civ. 
Genova. 43:218-323, f. 1-3. 
