612 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvii. 



to the angle of the preopercle. The angular is present. There is a 

 large space between the upper edge of the articular and the upper 

 limb of the dentar}-. The maxillary has two supplemental bones; the 

 anterior ver}' small and round, the posterior ^ery large, extending 

 along more than the posterior half of the upper edge of the maxillary 

 and over its outer surface to a longitudinal ridge near its lower edge. 

 The premaxillary has very large backward extending processes. The 

 suborbital chain is narrow and is not channeled on its outer side. 

 The suborbital shelf is very large, extending nearly around the entire 

 chain. 



HYOID. 



The cerato and epihyals have a deep channel along their outer surface 

 near their upper edge. Neither of them is pierced. Six branchios- 

 tegal rays are on the former and two on the latter. The lower 

 hypoh3'al is much larger than the upper one. The glossohyal is large 

 and tiat. The urohyal is large and triangular, and there is the begin- 

 ning of a longitudinal lateral wing along its lower edge. 



SHOULDER GIRDLE. 



The hypocoracoid arches away from the clavicle, leaving a wide 

 space between. There is a very large foramen through the center of 

 the h}' percoracoid. Three and a half of the actinosts are on the h}- per- 

 coracoid, and a half of the lower one is on the hypocoracoid. The 

 postclavicle is in two pieces. The superclavicle is present. The post- 

 temporal is widel}" forked. Its upper fork is widened into a large 

 " surface plate," which is denticulate behind. 



PELVIC GIRDLE. 



The pelvic girdle is triangular as viewed from the side, being deep 

 and compressed anteriorly and depressed posteriorly. The inner 

 edges arch up and meet at the median line, inclosing below them a 

 large chamber. At the posterior end there is a wing developed pos- 

 teriori}" and laterall}" over the base of the tins. From the under side 

 of the posterior end a pair of long slender processes project anteriorly. 



PHARYNGEALS. 



The lower pharyngeals are somewhat triangular. Half of their 

 inner edges are in contact but are not connected. There are three 

 superior pharyngeals on each side. That of the second arch is Aery 

 slender, carrjing scarcely' more than a single row of tine teeth. That 

 of the third arch is the largest, somewhat triangular, and better sepa- 

 rated from the third pharyngeal than in the other families. The third 

 pharyngeal is ovate in shape and of about half the size of the second. 



