Checklist of the Fishes of Midway Atoll-RANDALL ET AL. 369

FIGURE 26. Sargocentron spiniferum (J. Earle).

Sargocentron diadema (Lacepede, 1802)
BPBM 34801, 2: 123-124 mm. Common in lagoon.

Sargocentron ensiferum (Jordan & Evermann, 1903)
Recorded from Midway by Okamoto and Kanenaka (1984); not observed by us.

Sargocentron punctatissimum (cuvier, 1829)
BPBM 34828, 113 mm. Common inshore on exposed reefs outside the lagoon.

Sargocentron spiniferum (Forsskal, 1775)
Figure 26
Rare; a few observed in caves outside the lagoon beyond the surge zone. Listed from Midway by Okamoto and Kanenaka (1984).

Sargocentron xantherythrum (Jordan & Evermann, 1903)
Figure 27, Plate IJ
BPBM 34808, 48 mm. Common, especially in caves and under ledges outside the lagoon.

FIGURE 27. Juvenile Sargocentron xantherythrum, BPBM 34808, 48 mm SL (J. Randall).

FIGURE 28. Epinephelus quernus (J. Randall).

Family Serranidae
(Groupers and Sea Basses)

Epinephelus quernus Seale, 1901
Figure 28
BPBM 35381, 66 mm. Adults occasional outside the lagoon. Uchida and Uchiyama (1986) reported it from Midway in the depth range of26-219 m. We observed adults in as little as 8 m on seaward reefs. Four small specimens (140-289 mm) were speared at two stations in the lagoon by personnel of the Hawaii Cooperative Fishery Research Unit. Seki (1984a) studied the food habits of this grouper from specimens collected in the Northwestern Hawaiian Islands.

Plectranthias nanus Randall, 1980
BPBM 34779, 29 mm; BPBM 34844, 35 mm.
Common but very cryptic; found by turning over rocks on a rubble bottom.

Pseudanthias thompsoni (Fowler, 1923)
Figure 29
Locally common outside the lagoon at dropoffs at depths greater than about 20 m.