Fish Fauna of Johnston Is. — Gosline 
specs. As Catty odon ahula Fowler and Ball, 
1925, 2 specs. 
Since Brock and Yamaguchi have already 
demonstrated (1954) that the green S. per- 
spicittatus is the adult male of the brown S. 
ahula , and since my material adds little to this 
information, the account of this species may 
be cut short. Only five specimens of this 
species were taken at Johnston, four brown 
and one green. The green specimen, 14 inches 
in total length, is a ripe male with very large, 
paired testes. Of the brown form, specimens 
4.5 to 9-5 inches in total length are imma- 
tures; the other, 14 inches long, is a ripe or 
ripening female. The large female differs from 
the ripe male (and from brown specimens of 
a similar size from Hawaii) in the considerably 
greater depth of body, but I can see no other 
characters on which to separate them. 
Additional species of Scarus recorded from 
Johnston are: 
*Scarus cyanogrammus (Jordan and Seale) 
Halstead and Bunker, 1954, 1 spec. 
*Scarus duperrey (Quoy and Gaimard) 
Halstead and Bunker, 1954, 1 spec. 
*Scarus erythrodon Cuvier and 
Valenciennes 
As Cattyodon erythrodon , Fowler and Ball, 
1925, 4 specs. 
*Scarus forsteri Valenciennes 
Halstead and Bunker, 1954, 1 spec. 
CHAETODONTIDAE 
Centropyge flammeus Woods and Schultz 
4 specs., 70-81 mm., 1951. Woods and 
Schultz, in Schultz, et al ., 1953, 6 specs. As 
Holacanthus loriculus , Fowler and Ball, 1925, 
1 spec. 
*Centropyge nigriocellus Woods and 
Schultz 
Woods and Schultz, in Schultz, et al., 1953, 
1 spec. 
Chaetodon auriga Forskal 
14 specs., 112-145 mm., 1951; 1 spec., 117 
459 
mm., Schaefer, 1948. Halstead and Bunker, 
1954, 7 specs. As Chaetodon setifer , Smith and 
Swain, 1882, 1 spec, and Fowler and Ball, 
1925, 5 specs. 
Chaetodon citrinellus Cuvier 
5 specs., 92-100 mm., 1951. Halstead and 
Bunker, 1954, 1 spec. 
Chaetodon ephippium Cuvier 
2 specs., 124 and 158 mm., 1951. Fowler 
and Ball, 1925, 1 spec.; Halstead and Bunker, 
1954, 2 specs. 
Chaetodon multicinctus (Garrett) 
3 specs., 86-89 mm., 1951. As Chaetodon 
punctatofasciatus , Fowler and Ball, 1925, 3 
specs, and Halstead and Bunker, 1954, 2 
specs. 
This species is dealt with briefly in section 
2 . 
Chaetodon ornatissimus Solander 
4 specs., 110-147 mm., 1951. Fowler and 
Ball, 1925, 3 specs.; Halstead and Bunker, 
1954, 4 specs. 
Chaetodon quadrimaculatus Gray 
2 specs., 108 and 108 mm., 1951. Fowler 
and Ball, 1925, 3 specs. 
Chaetodon trifasciatus Mungo Park 
Fowler and Ball, 1925, 5 specs. Determina- 
tion checked. 
Chaetodon unimaculatus Bloch 
3 specs., 82-88 mm., 1951; 1 spec., 41 mm., 
Brock, 1948. Fowler and Ball, 1925, 6 specs. 
*Megaprotodon strigangulus (Gmelin) 
Halstead and Bunker, 1954, 1 spec. 
ZANCLIDAE 
Zanclus cornutus Cuvier 
1 spec., 98 mm., 1951. Halstead and Bunk- 
er, 1954, 1 spec. As Zanclus canescens , Fowler 
and Ball, 1925, 2 specs. 
ACANTHURIDAE 
Acanthurus achilles Shaw 
18 specs., 114-210 mm., 1951. Halstead 
