PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 285 



Number of molars in each row of lower jaw variable, but usually 9 ou 

 each side, those of the iinier row increasiug in size to the last, or to the 

 penultimate, which sometimes exceeds the last in size. Teeth of outer 

 row also increasing in size posteriorly, but to a less extent and less regu- 

 larly, so that the hinder four molars of the inner row are much larger 

 than their neighbors in the outer row. The two inner rows meet at aa 

 acute angle, the anterior pair in contact. 



Inner row of molars of intermaxillaries consisting of 21 teeth, of wliicli 

 G-7 form a row on each side, and increase in size to the hindermost or 

 the one in front of it, while the remainder form a curved line of small 

 tubercular teeth of even size along the inner side of the front of the 

 jaw, behind the band of incisors. Outer row of molars 8 in nund)er, 

 similar to those of the lower jaw. IMiddh^ row formed of more numerous 

 (about 14) and, on the whole, smaller teeth than either of the outer 

 rows, increasing in size posteriorly, so that, though tlie anterioi- five or 

 six are very small, the posterior ones are about e<iual in size to the 

 smaller teeth of the outer row. The hindmost four or live teeth of the 

 inner row in all cases exceed greatly in size any teeth in the otljer rows. 



Gill-rakers consisting of clusters of pin-like, slender teeth set ui)on 

 tubercles; those of the last two pairs of branchial arches largest. The 

 princii)al clusters of teeth are triangular, with several rows of teeth, the 

 largest behind, the other rows diminishing in length and in size of teeth 

 as they succeed each other anteriorly. 



Pharyngeal bones, upptr and lower, covered with a dense cluster of 

 teeth similar to those in front of the jaws. The inner row of the lower 

 pharyngeals larger than those in front, wliich are about four in nuaiber, 

 and the anterior teeth rather larger than the posterior. 



Dorsal commencing immediately over the pectoral base ; first S})ine 

 about one-fourth the length ; second spine eleven-twentieths of length 

 of third; fourth broken in specimen examined; fifth slightly sliorter; 

 and the remaining spines <lecreasing regularly to the twelfth, which is 

 less than half as long as the third. 



Rays of soft dorsal twice bifurcate. 



Second anal spine longer than the third and about twice as long as 

 the first, wliich is inserted a little behind the pectoral base ; rays twice 

 bifurcate. 



Caudal deeply and triangulately emarginate on its hinder border, the 

 free portion of the central rays about one-third the length of that of 

 the outer rays. Outer pair of principal rays undivided, most of the 

 others four times bifurcate. 



Fifth ray of pectorals longest, fourth but little shorter, lower rays 

 tapering rapidly, producing a rather narrow elongate fin; rays twice 

 bifurcate. 



First soft ray of ventrals longest; rays three times bifurcate. 



Scales large, broader than long, slightly striated and scalloped ou 

 their engaged margin, posterior margin rounded, anterior somewhnt an- 

 gular, the center advancing. Scales of body subequal, operculum and 



