272 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Abudtfduf Forski.1, Descr. Anim., etc., 59, 1775 (sorclidus) . 
GlyphisodonLacipede, Hist. Nat. Poiss., IV, 542, 1802 (mo ucharra). 
Slegastes Jenyns, Voy. Beagle, 63, 1842 ( imbricatus ) ; dorsal spines 12; snout scaly. 
Euschistodus GiU, Proc. Ac. Nat. Sci. Phila. 1862, 145 ( declivifrons ). 
Hemiglyphidodon Bleeker, Holl. Maatsch. Wetensv, II, 1877, 91 ( plagiometopon ); lower pharyngeals quadrate. 
Amblyglyphidodon Bleeker, -op. cit., 92 (aureus)-, scales above lateral lines in 1 or 2 rows. 
Glyphidodon, corrected spelling. 
a. Teeth scarcely compressed. 
b. Dorsal xir, 19; anal n, 15 
aa. Teeth considerably compressed. 
c. Eye comparatively large, less than 4 in head. 
d. Dorsal xm, 14, spines shorter than soft rays; anal n, 14. . 
dd. Dorsal xii, 16, the spines as long as soft rays; anal n, 11 
cc. Eye comparatively small, more than 4 in head (4.6) 
212. Abudefduf sindonis (Jordan & Evermann) . Plate 40 . a 
Head 3.5 in length; depth 1.75; eye 3.4 in head; snout 3.5; maxillary 3.4; interorbital 2.8; D. 
mi, 19; A. ii, 15; scales 4-28-9, 22 pores. 
Body short and deep, dorsal outline evenly arched from tip of snout to soft dorsal; head deeper 
than long, compressed; snout short and conic; mouth small, horizontal, lower jaw slightly shorter; 
maxillary reaching to anterior edge of orbit; a single row of small, rather blunt, slightly compressed 
teeth on each jaw; preopercle entire, opercle ending in 2 small flat spines, upper very small and 
obscure; eye anterior, high, its lower edge above upper base of pectoral; interorbital broad, steep, and 
convex; tins large, origin of dorsal over base of ventrals, its distance from tip of snout equal to dis- 
tance from base of last ray to tip of upper caudal lobe; spines strong and long, first 0.7 of fourth, which 
is 1.9 in head and of same length as following spines; middle dorsal rays produced, longest ray 1.25 in 
head; anal similar to soft dorsal, longest ray 1.25 in head, second spine longest, 2 in head; caudal 
forked, upper lobe the longer; ventrals reaching past vent, outer rays longest, about equal to head; 
pectoral broad, upper rays longest, equal to head; scales large, ctenoid, covering entire body and 
head except lower jaw and snout anterior to eye; lower limb of preopercle scaled; large scales cover- 
ing nearly all of dorsal spines, smaller scales covering as much of soft dorsal and anal and nearly all 
of caudal; very minute scales on base of pectoral, none on rays of ventrals; lateral line concurrent with 
dorsal outline, on 22 scales, ending 3 rows of scales short of posterior base of dorsal, then dropping 
3 rows of scales and continuing obscurely on middle of caudal peduncle to base of caudal tin. 
Color in alcohol, uniform very dark brown, nearly black; 2 narrow wavy bands of white on side, 
first beginning about under fourth dorsal spine and extending under about middle of pectoral, thence 
curving slightly backward toward vent, rather indistinct below pectoral; second band beginning under 
last dorsal spine and first ray, extending toward middle of anal, rather obscure, indistinct for 2 or 3 
scales before reaching anal; fins all black, pectoral slighty lighter than others; a large black ocellated 
spot with a narrow white border on back and lower part of soft dorsal, larger than eye, just back of 
last white bar. 
The above description based oh the type, No. 50669, U. S. N. M. (field No. 04524), a specimen 3.75 
inches long, from Honolulu. One other specimen obtained and taken as a cotype, No. 2727, Bureau of 
Fisheries reserve series (field No. 03732). It is 2.75 inches long, and was taken at Kailua where the 
species was first discovered by Mr. Michitaro Siudo, for whom it is named. 
This species agrees with typical Abudefduf in all respects except that none of the teeth appears 
to be emarginate. It agrees with Chrysiptera in the entire preopercle and preorbital and naked snout, 
but differs from the type of that genus in having the teeth in a single series. 
Glyph-isodon sindonis Jordan & Evermann, Bull. U. S. Fish Comm., xxii, 1902 (April 11, 1903), 188, Honolulu. 
213. Abudefduf abdominalis ( Quoy & Gaimard). “ Maomao.” Fig. 116. 
Head 3.5 in length; depth 2; eye 3.75 in head; snout 3.4; maxillary 3.5; interorbital 2.8; D. xiii, 
14; A. ii, 14; scales 5-30-11. 
Body oblong, deep, compressed, much longer in adult than in young; head small, its depth equal 
to its length; upper profile concave over eyes; snout short, obtuse, rounded; mouth small, oblique, 
sindonis, p. 272 
. .abdominalis. p. 272 
imparipennis. p. 274 
sordidus, p. 274 
a Glyphisodon sindonis on plate. 
