84 pages matching editions:OCLC1647291 in this book
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abdomen angle anterior anteriorly apically appear basal base body bone braincase brownish Cape carapace cavity cell Clinus Collected dark described Description developed differs directed distal distinct distinctly Distribution dorsal edge extending eyes face Family fenestra foramen forms front genus groove half head hind hydrotheca IKMT indicated inner internal joint lateral length less lies longer lower mantle length margin material median meet middle narrow nerve olfactory opening orbitosphenoid organ pair parasphenoid parietal posterior posteriorly present pro÷tic pterygoid publication records references region relatively represented rest ridge rostrum seen sella separate septum short shorter side skull slender slightly Smith South African Museum species specimen sphenoidal spines stapes stem structure suckers supraoccipital surface tergites third thorax tube underlined upper vein ventral vomer West wings yellowish