Eye relatively small, diameter 5.9 in HL. Notch at posterodorsal corner of orbit (Fig. 1B). No fleshy papillae on
posterior rim of orbit. Light organ (Fig. 3) relatively narrow and small, length 7.5 in HL. Light organ free
posteriorly, with a relatively wide cup supporting its anterior end and extending posteriorly along entire ventral
surface of light organ as a thin ovoid plate. Strongly elevated ridge on anterior portion of cup creating deep groove
between itself and anterior portion of light organ. Anterior portion of fibrocartilaginous stalk continuous with its
contralateral member across snout, with no attenuation at commissure. Posterior portion of stalk twisted, passing
through small gap between lacrimal and nasal. Many tiny black papillae on outer surface of stalk followed by some
large black column-like papillae at anterodorsal corner of light organ complex. Organ capable of being rotated
downward into pocket below eye and medial to infraorbitals. When occluded, dorsal margin of light organ well
below infraorbital rim. Black elastic shutter membrane attached along outer margin of suborbital pocket, erectible
with rotation of light organ (Figs. 4A–C ).
Eye relatively small, diameter 5.9 in HL. Notch at posterodorsal corner of orbit (Fig. 1B). No fleshy papillae on
posterior rim of orbit. Light organ (Fig. 3) relatively narrow and small, length 7.5 in HL. Light organ free
posteriorly, with a relatively wide cup supporting its anterior end and extending posteriorly along entire ventral
surface of light organ as a thin ovoid plate. Strongly elevated ridge on anterior portion of cup creating deep groove
between itself and anterior portion of light organ. Anterior portion of fibrocartilaginous stalk continuous with its
contralateral member across snout, with no attenuation at commissure. Posterior portion of stalk twisted, passing
through small gap between lacrimal and nasal. Many tiny black papillae on outer surface of stalk followed by some
large black column-like papillae at anterodorsal corner of light organ complex. Organ capable of being rotated
downward into pocket below eye and medial to infraorbitals. When occluded, dorsal margin of light organ well
below infraorbital rim. Black elastic shutter membrane attached along outer margin of suborbital pocket, erectible
with rotation of light organ (Figs. 4A–C ).
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