Page:Wood 1865 - The Myriapoda of North America.djvu/49

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Species mihi ignota.

, Say, Journ. Acad. Nat. Sci., 1st series, vol. ii, p. 114.

I have not been able to learn anything as to what species Mr. Say referred in his description, which throws no light on the subject; possibly it belonged to the genus Mecistocephalus.

The head is small and of a more reddish tint than the body. The antenna 1 are of medium length, filiform, not at all clavate, and very sparsely minutely pilose. The body narrows much more gradually and somewhat more decidedly anteriorly than posteriorly. The last pair of legs in the single specimen are small and slender; their cox are large and pitted. Many of the sterna have three more or less obsolete depressions on their anterior portion, and two larger ones on their posterior; on some of them there is a longitudinal mesial groove. I would dedicate this species to my friend and student, Robert J. Walker, whose untiring energy in collecting has aided me so much in the preparation of this monograph.