The functions of the spiracle of the skate
by Herbert W. Rand
(Contributions from the Zoölogical Laboratory of the Museum of Comparative Zoölogy at Harvard College, no. 189)
[Zoölogical Laboratory of the Museum of Comparative Zoölogy at Harvard College], 1907
"From the American Naturalist, Vol. XLI. No. 485" -- T.p.
Zoölogical Laboratory of the Museum of Comparative Zoölogy at Harvard College