44 
ONOMERIS. 
The gnathochilarium of Onomeris is similar to that of specimens 
of Glomeris eonspersa, which do not, however, resemble Latzel’s dia- 
gram very closely. 
The seventeenth pair of legs of males have the coxae much en- 
larged, but the other joints, three in number, are reduced to mere 
rudiments. The eighteenth pair of legs is five-jointed, with the coxae 
coalesced. The copulatory legs are, as stated, not greatly difierent in 
general shape from the European forms, but they are provided with 
large finely corrugated processes from the posterior face of the two 
last joints, in addition to processes from the median face similar to 
those of Glomeris. The last segment is broadly emarginate posteri- 
orly ; in size it is about equal proportionally to that of Glomeris. 
The surface of the segments is smooth and shining, but is finely punc- 
tate under sufficient magnification. The first segment has two trans- 
verse striations and the anterior part of the second five or six ; the 
anterior edge of the other segments is finely margined and trans- 
versely grooved ; the groove is finely and regularly crenulate like the 
suture of certain Polydesmoidea. 
In color the specimens are light grayish or horn-brown, darker 
along the posterior margin and laterad, though the posterior and lat- 
eral edges may be pale ; on some specimens there is a distinct lateral 
pale spot. The deficient pigmentation is no doubt correlated with the 
slighter chitinization of the American genus, though the small size is 
also to be considered. The largest specimens of Onomeris measure 
less than 5 mm. by about 2 mm.. When disturbed they coil 
at once into a ball and do not move for two or three minutes. Over 
a hundred specimens of both sexes were found among rotting 
leaves and pine needles, near Auburn, Alabama, during the present 
month. The species is to be called O. underwoodii for my friend 
Professor E. M. Underwood, whom I was visiting wEen Onomeris 
and other interesting Myriapoda were collected. 
To give this new genus a proper assignment in the classification is 
not easy. Evidences of affinity with Glomeris are evident and nu- 
merous, but many of the common characters are also shared with all 
the members of this peculiar order, and as noted above, the differen- 
ces, while perhaps not of great importance, are such as would indi- 
cate long separation from the European stock. A Javan Glomeroid 
in my collection is evidently much nearer to the European than is the 
American form, although the Malayan species are apparently distinct 
from the European by generic differences, so that I have for some 
time been intending to designate Glomeris infuscata Poc.^ as the type 
* Pocock, Myriapoda of Weber’s Reise, p. 324, PI. XIX, figs. lo-iob. 
Apioineris infuscata comes from Sumatra. 
