Acari
Palpigradi
Scorpiones
Amblypygi
Pseudoscorpiones
Solifugae
Araneae
Ricinulei
Thelyphonida
Opiliones
Schizomida
A. F. Millidge
Volume 9 Number 3
1981 Vol. 9-3 Pages: 259–284
Frederick A. Coyle
1981 Vol. 9-3 Pages: 285–298
Robert W. Work
1981 Vol. 9-3 Pages: 299–308
James C. Cokendolpher
1981 Vol. 9-3 Pages: 309–316
Frederick A. Coyle and William A. Shear
1981 Vol. 9-3 Pages: 317–326
C. W. Aitchison
1981 Vol. 9-3 Pages: 327–330
Norman I. Platnick
1981 Vol. 9-3 Pages: 331–334
William B. Muchmore
1981 Vol. 9-3 Pages: 335–336
1981 Vol. 9-3 Pages: 337–338
Enrique J. Lahmann and Claudia Ma. Zuniga
1981 Vol. 9-3 Pages: 339–341
Bruce Cutler
1981 Vol. 9-3 Pages: 342–343
Wayne A. Riddle
1981 Vol. 9-3 Pages: 343–345
Diomedes Quintero
Volume 9 Number 2
1981 Vol. 9-2 Pages: 117–166
1981 Vol. 9-2 Pages: 167–213
Neil F. Hadley, Gregory A. Ahearn and Francis G. Howarth
1981 Vol. 9-2 Pages: 215–222
Wilson R. Lourenço and Max Vachon
1981 Vol. 9-2 Pages: 223–228
William G. Eberhard
1981 Vol. 9-2 Pages: 229–232
Volume 9 Number 1
1981 Vol. 9-1 Pages: 1–18
J. Mark Rowland and James R. Reddell
1981 Vol. 9-1 Pages: 19–46
1981 Vol. 9-1 Pages: 47–60
María E. Galiano
1981 Vol. 9-1 Pages: 61–85
Robert R. Jackson
1981 Vol. 9-1 Pages: 87–92
W. David Sissom and Oscar F. Francke
1981 Vol. 9-1 Pages: 93–108
Kenneth G. Ross
1981 Vol. 9-1 Pages: 109
1981 Vol. 9-1 Pages: 110–112