Occasional papers of the California Academy of Sciences . MP1 Figure 17. Polycentrus schomburgkii. Lateral view of head showing distribution of free lateralis organs (open circles),canal neuromasts (paired triangles), and canal pores (black circles). FREIHOFER: CRANIAL NERVES OF POLYCENTRUS SCHOMBURGKII 69 EUDOBRANCH. DORSAL HYPOHYAL VENTRAL HYPOHYAL Figure 18. Polycentrus schomburgkii. Lateral view of gill arches and pectoral girdle showing associated gill arch to right. -(I OCCASIONAL PAPERS OF THE CALIFORNIA ACADEMY OF SCIENCES, NO. 128 R OPER VAGI

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectscience, bookyear1890