Captured over a rippled sand bottom. The largest female specimen (30.5 cm TL) was with ripened eggs, 0.7-0.9 mm in diameter .
Vertebrae: 138 - 142. This species is distinguished by the following by the following characters: tail 1.7-1.8, head 13-16, and body depth 65-73 in total length; preopercular pores 4, supratemporal canal with 5-9 pores; teeth conical, uniserial on jaws and vomer; and with a single vomerine tooth; anterior nostril non-tubular, a hole; snout is sharp, slope approximately 30° relative to underside; body colouration pinkish white, with numerous brown to orange spots that are less than eye diameter; MVF 58-140, total vertebrae 138-142 .: elongated; Cross section: oval.
Behavioural data for Apterichtus Jeffwilliamsi is currently being reviewed.
Diet information for Apterichtus Jeffwilliamsi is currently being compiled.
Reproduction data for Apterichtus Jeffwilliamsi is currently being compiled.
Marine; benthopelagic; depth range 4 - 16 m . Tropical Central Pacific: Vanuatu.
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