Occasional papers of the California Academy of Sciences . R OPH SUP FAC R OPH SUP TRI Figure 3. Polycentrus schomburgkii. Oblique view of supraorbital trunk looking towards roof of orbital cavity. TH3 PREVOM. LOP PARASPHENOIDNLL PALATINE tr R PALATINUS ^SYM TR V \\ # \\ lx 7^XUf G2 GANG IXSYM TRTH1PSEUDOBRANCH Figure 4. Polycentrus schomburgkii. View looking dorsally showing branches of truncus hyomandibularis and glosso-pharyngeal nerves to palate and posterior floor of cranial area. 62 OCCASIONAL PAPERS OF THE CALIFORNIA ACADEMY OF SCIENCES, NO. 128 NLL2 RSUPRlcRSUPRlb RLA-PD

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectscience, bookyear1890