34 BERYCID^. 



length, and more than four times as long as the last. The pectoral 

 fins reach to the level of the nineteenth scale of the lateral line, the 

 ventrals to that of the twenty-second. 



The scales are not striated, but finely serrated at the posterior 

 margin ; one of the largest covers one-third of the eye, and is two- 

 thirds as long as high. 



The coloration appears to be red, "svith bands of a Lighter tinge 

 along each series of scales. No other markings are %'isible_, except 

 the round whitish spots, forming a series along the middle of the 

 spinous dorsal ; there is another triangular spot behind the tip of each 

 spine. In life the round spots may have been blue, and the trian- 

 gular ones rose-coloured. 



inches, lines. 



Total length 8 2i 



Height of the body 2 5 



Length of the head 2 5^ 



Interspace between the eyes 5 



Diameter of eye 8 



Praeopercular spine 5^ 



Length of fourth dorsal spine 9 



of third dorsal ray 1 4^ 



of third anal spine 1 4 



of first anal ray 1 5f 



of a large scale 3 



Height of a large scale 5 



6. Holocentrum microstoma. (Plate VI. fig. A.) 



D. 11-12 1 13. A. 1. L. lat. 47-53. L. transv. 4/7. 



The height of the body is nearly four times in the total length, 

 the length of the head 3| ; the interspace between the ej-es is 4^ in 

 the latter. Lower jaw rather prominent ; snout rather pointed, 

 shorter than the diameter of eye ; the uppei- maxillaiy reaching to 

 below the anterior third of the eye. Operculimi with two prominent 

 spines, the upper jf which is the longer. Praeopercular spine small, 

 not much stronger than that of operculum. The fourth, fifth and 

 sixth dorsjil spines longest, one-half of the height of body ; lobes of 

 the caudal equal ; the third anal sjjine much longer and stronger 

 than the fourth, one-fifth of the total length; pectorals shorter than 

 ventrals. lied, with lighter longitudinal bands ; a small brownish 

 speck behind the first dorsal spine. 



a. Adult. Amboyna. From Mr. Frank's Collection. 



b. Half-grown. Old Collection. 



Description. — The form of the l)ody is rafher elongate, the snout 

 of moderate length, four-fiifths of the diameter of eye (difference 

 from //. laticeps). The interspace between the eyes is nearly equally 

 broad behind and in front, but with a slight concavity above the 

 middle of the eye. The two bony ridges are distant from one 



