Published in Occasional Papers of the Museum of Natural History University of Kansas, in 1990, in volume 134, pages 1-23

Published in Occasional Papers of the Museum of Natural History University of Kansas, in 1990, in volume 135, pages 1-9

Published in Occasional Papers of the Museum of Natural History University of Kansas, in 1990, in volume 136, pages 1-31

Published in Occasional Papers of the Museum of Natural History University of Kansas, in 1990, in volume 138, pages 1-7