REPORT ON THE CHILOPODA AND 
DIPLOPODA 
Collected by the Barbados-Antigua Expedition from the 
University of Iowa in 1918 
RautpH V. CHAMBERLIN 
Museum of Comparative Zoology, Cambridge, Mass. 
CHILOPODA 
Specimens of two species of chilopods were secured by the 
Expedition on Barbados Island, one of these being a geophiloid 
form of the genus Mecistocephalus, the other a scolopendroid 
of the typical genus Scolopendra. 
Order SCOLOPENDROMORPHA 
Family Scolopendride 
Scolopendra subspinipes Leach. 
Trans. Linn. Soc. London, XI (1814), p. 383. 
Of the seven or eight large centipeds of the genus Scolopen- 
dra recorded from the West Indies, the present species and 
Scolopendra aliernans Leach are much the most common and 
widespread. S.alternans is a characteristically West Indian 
form and the more abundant generally speaking, while S.sub- 
spimipes is apparently of oriental origin though now spread 
over all the warmer regions of the earth excepting about the 
Mediterranean Sea. It has been recorded previously from Bar- 
bados while S.alternans has not, and it is possible that the lat- 
ter, the native species, has been there wholly displaced. 
While in the East Indian and adjacent regions S.swbspinipes 
presents a number of well-marked varieties, only the forma 
typica is known to occur in the West Indies, and the specimens 
from Barbados conform fully to it. The species sometimes at- 
tains a length of 200 mm. 
Six medium and small sized specimens were taken by A. O. 
Thomas at Speighstown, Barbados, May 19, 1918. 
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