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Image of California headlightfish
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California Headlightfish

Diaphus theta Eigenmann & Eigenmann 1890

Diagnostic Description

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Adipose small, narrow based, slender (Ref. 6885). Brown to black on dorsal surface, lighter ventrally; fins pale (Ref. 6885). Branchiostegal rays: 9 (Ref. 31442).
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Recorder
Cristina V. Garilao
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Life Cycle

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Oviparous (Ref. 31442).
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Recorder
Susan M. Luna
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Morphology

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Dorsal spines (total): 0; Dorsal soft rays (total): 12 - 14; Analspines: 0; Analsoft rays: 12 - 14; Vertebrae: 34 - 36
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Recorder
Cristina V. Garilao
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Biology

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Epipelagic to mesopelagic (Ref. 31442). Feed at night or in the morning (Ref. 9199), on euphausiids, copepods, and amphipods (Ref. 11712). Oviparous, with planktonic eggs and larvae (Ref. 31442). Lipid content is 15.8 % in fresh body weight while wax ester is present in trace amounts (Ref. 9197). Minimum depth reported from Ref. 28981.
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Recorder
Rainer Froese
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