366 MEMOIRS OF THE CARNEGIE MUSEUM. 



but distinguished from the latter by its relatively larger teeth and the steeper 

 facial profile of the head. The two portions of the dorsal fin about equally elevated, 

 each with about nine rays, those of the posterior portion more closely approximated 

 than those of the anterior portion. Fulcra well developed on all the median fins. 

 Scales prominently denticulated along the hinder border. 



This species is represented in the collections of the Carnegie Museum by several 

 specimens, catalogued under the following numbers: 4033, 4035, 4399, 4418, 4654, 

 5115, and 5516. The one catalogued as No. 4399 is of unusually large size, ap- 

 proaching that of average specimens of N. pentlandi. It bears considerable 

 resemblance to the undescribed form figured by ThioUiere under the name of 

 /. margaritce. 



10. Notagogus ornatus sp. nov. (PI. L, fig. 3.) 



Type. — Nearly complete fish in counterpart; Carnegie Museum Cat. No. 5114 

 +51 14a. 



A species attaining a length of about 14 cm., of robust proportions and with 

 gently arched dorsal and ventral contours, the length of the head and opercular 

 apparatus equalling the maximum depth of the trunk and contained two and one- 

 half times in the total length, exclusive of the caudal fin. External bones of the 

 head ornamented with delicate striae, or sometimes with fine vermiculating rugse. 

 A circumorbital ring present. Jaws powerful, teeth stout, conical, and closely 

 spaced. Dorsal fin extended, but not much elevated, the anterior portion com- 

 prising thirteen, and the posterior nine rays. Anal fin arising opposite the hinder 

 part of the posterior dorsal, well developed, and with about eight rays. Caudal fin 

 not deeply forked. Fulcra present on all the median fins. 



Scales with numerous fine obliquely directed pectinations along their hinder 

 border; about thirty-six vertical series are to be counted along the lateral line, 

 which is distinctly indicated, and twelve longitudinal series in the deepest part of 

 the trunk. Scales of the pectoral region sharply differentiated by their smaller 

 size and almost cycloidal form from those covering the flanks and abdominal region. 

 A few enlarged ridge-scales at the base of the tail above and below and in advance 

 of the anal fin. 



This species is distinguished from H. inimontis and the imperfectly known 

 H. margaritce, which accompany it in the Cerin locality, by its larger size, the deeper 

 contour of the body, more numerous dorsal fin-rays, and, as far as may be judged 

 from the published figures of the above-named species, by its scale-characters. 

 Three examples of it are contained in the Bayet Collection of the Carnegie Museum, 

 cataloged as Nos. 5114+5114a, 4071, and 4660+4660a. The first of these is 

 selected as typical. 



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