BY ALLAN R. MCCULLOCH. 267 



Teeth uniform in size, compressed and arranged in a single 

 row in each jaw. A small patch of microscopic teeth on the 

 vomer, a larger one on each palatine, and another on the tongue. 



The entire body, opercles, cheeks, and top of the head as far 

 forward as the middle of the eye, are covered with cycloid scales, 

 the margins of which are often broken into irregular lobes. They 

 are larger than is usual in the family, the largest being on the 

 cheeks, where they are arranged in about eleven rows. They 

 are small on the lower half of the operculum, and the top of the 

 head. The corselet is small and not very well defined. There 

 are one hundred and seventy-five rows of scales above the lateral 

 line between the corselet and the pit at the base of the caudal; 

 there are twelve between the middle of the spinous dorsal and 

 the first lateral line, and probably twenty-seven more to the 

 lower lateral line. The upper lateral line commences behind the 

 corselet, and follows the curve of the back to the caudal peduncle; 

 a branch descends from it a little behind the verticle of the 

 middle of the pectoral, which is at first almost upright, then 

 very oblique, and finally follows the curve of the ventral profile 

 till it joins the upper line again in front of the caudal peduncle. 

 The second dorsal, anal, and pectoral, are entirely covered with 

 small scales, as is a space on the middle of the caudal fin. 



Caudal peduncle with a strong median keel, and two smaller 

 oblique ones on either side of it at the base of the tail. A 

 minute pit is also present on the upper and lower surfaces before 

 the insertion of the caudal fin. 



Second dorsal spine longest, the others decreasing gradually 

 to the last; the spines can be received into a groove in the back. 

 Second dorsal and anal similar in form, their anterior rays form- 

 ing falcate lobes. Pectorals rather short and somewhat falcate, 

 situated a little below the median line of the body. Ventrals 

 inserted behind the verticle of the pectorals but before that of 

 the first dorsal spine; they are short, and can be received into 

 grooves in the abdomen. Finlets well developed. Caudal lunate. 



CoZoi^r. — Silvery in formalin, the back tinged with olive-green; 

 a number of large dark spots are present on the belly. 'J'he fins 

 are dark olive-green, the anterior rays of each being darker than 



