67 
King George’s Sound, though that name is most generally appro- 
priated by them to the Crenidens zebra. Its prefrontal bone pro- 
jects behind the nostril, but not so acutely as in Ch. nigripes or 
gibbosus. There is however a difference in this respect in different 
individuals. The width of the interoperculum is about half that of 
the preopercular disk, and these bones and the cheek are densely 
scaly. The scales of the cheek however are imbedded in spongy 
porous skin. The length of the preorbitar equals the diameter of 
the orbit. In the relative sizes of the opercular bones and preorbitar, 
and in the form of the dorsal, zonatus and nigripes closely resemble 
each other, but there is a difference in the anal spines, in the rays of 
the pectoral, in the shape of the caudals, that of zonatus being only 
sparingly excavated, and a striking one in the colours. 
The dried specimen of zonatus shows very distinctly eight dark 
oblique bars on the body, the first crossing the nape and the last the 
base of the caudal, the intermediate pale spaces being equal to the 
bars in breadth. The entire head, including the preorbitar, is thickly 
marked by round dark spots of the size of duck shot. There are 
large spots on the caudal, which are so crowded on the margin of the 
fin as almost to form a continuous bar. Two or in some parts more 
rows traverse the dorsal, and there are dark marks on the tips of the 
anal and ventrals. The simple rays of the pectoral are orange. Mr. 
Reeves’s drawing of the Chinese fish represents it as dressed in very 
lively colours during the breeding season. 
The dorsal is highest at the fifth spine, as in zonatus, and is in 
other respects similar in form ; but the anal spines are shorter, espe- 
cially the second, which is also stouter in proportion. Rather less 
than one-third of the longest pectoral ray projects beyond the mem- 
brane, and the membrane is less deeply notched between the other 
simple rays than in nigripes. The scales differ from those of the last- 
named species, being finely granulated on the disk, as in nigricans. 
The rays are somewhat differently enumerated in the ‘ Histoire 
des Poissons,’ from a Japanese specimen. Radii.—Br. 6; D. 17|29; 
A. 3|8; P. 9 et V.; V. 1|5, Cuv. et Valence. 
The Cheilodactylus brachydactylus (Hist. des Poiss. p. 361) of 
the Cape approaches more nearly to our examples of zonatus in the 
numbers of the rays, but it does not appear to possess the prefrontal 
prominence, and has no other markings than a triangular black mark 
behind the eye. Radii.—Br.5; D. 17/31; A. 3|9; C.17; P.8 et V.; 
V. 1|5, Cuy. et Valenc. 
Cheilodactylus ciliaris, Richardson, Zool. of the Voy. of the Ere- 
bus and Terror, p. 37. pl. 26. fig. 6, 7 (Latris; Sciena ciliaris, 
Forster, &c.), is a species which is allied to the following ones, in the 
shortness of its simple pectoral rays. 
CHEILODACTYLUS HECATEIUS, Richardson. 
Latris hecateia, Richardson, Zool. Trans. p. 106. tab. 6. f. 1. 
Radii.—Br. 6; D.18)36; A. 3/27; C.168; P.9 et IX.; V.1]5, 
spec. 
