228 
tinguish U . knighti from JJ. reidi , and I believe 
the two are synonyms. 
At present I am also allocating to U. knighti 
a whole series of more or less dark-chinned 
specimens. It is presumably this type of fish 
that Jordan and Evermann (1905: 111) and in- 
numerable others have been calling U. rnarrno- 
ratus and which is probably represented by the 
small specimens in Schultz’s (1943: 33; 1953: 
155) accounts of the same species. The rea- 
sons for provisionally combining the dark- 
chinned and light-chinned forms (cf. Schultz, 
1953: 159) are: (1) that I can find no valid 
morphological differences between them, (2) 
that available collections (from Makatea, 
Wake) that contain the light variety also con- 
tain the dark one, and (3) that many individ- 
uals are partially intermediate between the two. 
That the dark form is not the young of U. 
marmoratus can be more convincingly demon- 
started: of the hundreds of Hawaiian speci- 
mens many are ripe adults but the largest is 
just over 13 inches long; in specimens from 3 
to 13 inches there is no evidence for additional 
tooth rows with increasing size. 
PACIFIC SCIENCE, Vol. XII, July, 1958 
REFERENCES 
Gosline, W. A. 1955. The inshore fish fauna 
of Johnston Island, a Central Pacific atoll. 
Pacific Sci. 9: 442-480, figs. 1-4. 
Jordan, D. S., and B. W. Evermann. 1896. 
The Fishes of North and Middle America . 
U. S. Natl. Mus., Bui. 47, Vol. 1. lx+ 
1240 pp. 
and 1905. The Shore Fishes of 
the Hawaiian Islands. U. S. Fish Comn. Bui. 
for 1903, 23(1). xxviii+574 pp., 73 color 
pis., 65 black and white pis., 229 text figs. 
Jordan, D. S., and A. Seale. 1906. The Fishes 
of Samoa. U. S. Bur. Fisheries Bui. for 1905, 
Vol. 25. Pp. 173-445, pis. 33-53, text figs. 
1 - 111 . 
Schultz, L. P. 1943. Fishes of the Phoenix and 
Samoan Islands ... . U. S. Natl. Mus., Bui. 
180. x+316 pp., 9 pis., 27 text figs. 
Schultz, L. P., et al. 1953. Fishes of the Mar- 
shall and Marianas Islands. U. S. Natl. Mus., 
Bui. 202. xxxii+685 pp., 74 pis., 90 text figs. 
Weber, M., and L. F. de Beaufort. 1916. 
The Fishes of the Indo- Australian Archipelago. 
Vol. 3, xv+455 pp., 214 figs. Leiden. 
