Monocentris japonicus (originally Scomber japonicus Houttuyn 1782; 12-17cm) is the extant Japanese pineconefish, so named because it is covered in scutes, a larger sort of scale. This nocurnal relaltive of Lampris lives in caves. It has light-producing areas filled with bioluminescent bacteria on the lower jaws, distinct from the unrelated flashlight fish, Anomalops.

Petrocephalus bane (Lacepède 1803; 20cm) is considered a mormyrid, like Mormyrops,and a species of elephant fish. Here it nests with Gnathonemus, but apart from Moryrops. It lacks an elephant snout and has a deep circumorbital bar. The mandible is smaller than the orbit. Crests appears on the front and on the posterodorsal skull, but they are buried in vivo.

Gnathonemus curvirostris (Gill 1863, 5cm to 1.5m) is the extant elephantfish, a traditional member of the clade Mormyridae or a sister to Osteoglossum, here it nests as a sister to ?Pholodophorus (above) from the Jurassic. Note the matching dorsal and anal fins. The cerebullum is greatly enlarged. The supratemporal appears as a 'scale' over the intertemporal. This slow, brackish water micro-predator uses electrical impulses to find tiny prey in cloudy waters convergent with electric eels.