Dorsal and pelvic spines robust with a locking mechanism similar to sticklebacks and some catfishes (Ref. 89357).
- McAllister, D.E. 1990 A working list of fishes of the world. Copies available from D.E. McAllister, Canadian Museum of Nature, P.O. Box 3443, Ottawa, Ontario K1P 6P4, Canada. 2661 p. plus 1270 p. Index. (Ref. 27116) http://www.fishbase.org/references/FBRefSummary.php?id=27116&speccode=52688
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