NO. v.m. OSrEOLOa Y OF BER YCOID FISHES— STA Rk'S. (U 5 



parasphenoid. Behind it is a small opening. The alisphenoids do not 

 nearly meet at the median line, ])ut are bridg-od by the small orbito- 

 sphenoids. The orbitosphenoids meet at an angle and ai-e fused into a 

 small A-«haped plate which is placed between the alisphenoids near 

 their anterior end, leaving a small space anteriorh' between them and 

 the f rontals. The frontals do not project over the ethmoid antei-iorlv. 

 The prefrontals are united behind. l)ut are separated by the ethmoid 

 anteriorly. The olfactory foramen, which is near their inner edo-e, is 

 rather large. The nasals are not very large, nor do thev inclose a 

 chamber l)etween them, as in Berij.v. They are attached to each other 

 and to the ethmoid bv rough suture. 



SHOULDER GIRDLE. 



The hypocoracoid arches away from the clavicle leaving a large open 

 space between. The hypercoracoid foramen is very large and near the 

 middle of the bone. The four actinosts are all on the hypercoracoid 

 except about half of the lower one. They are elongate, cjdindrical, 

 not in contact except at the ends, and grow longer downward. The 

 upper ray of the pectoral works directly on a condyle on the hyper- 

 coracoid. The postclavicle is in two pieces, arranged as usual, with the 

 upper piece thin and wide and the lower long and slender. The supra- 

 clavicle is present. The posttemporal is wideh' forked. 



PELVIC GIRDLE. 



The pelvic girdle is abdominal but anterior. Its anterior point in a 

 specimen 8i inches long is nearly three-fourths of an inch from the 

 union of the tips of the clavicles below. It is not high and vertical as in 

 Berr/.r, but wide and depressed. The two halves are joined posteriorly, 

 and only for a short distance at their points, leaving a wide open 

 space between them at their middle. The posterior union is peculiar. 

 A long spur is developed on each side toward the opposite side at a 

 right angle to the ventral fins. They overlap each other for their 

 whole length, that of the right side being uppermost. A long sharp 

 process is developed posteriorly from each side between the ventral 

 fins. 



LATERAL BONES OF HEAD. 



The head of the hyomandibular is divided where it articulates with 

 the cranium. The anterior edge of the h3^omandibular sends a process 

 down to articulate with the metapterygoid, leaving an open space 

 behind. The metapterygoid has a slight outer wing developed which 

 partly extends over the opening between it and the hyomandibular. 

 The symplectic extends in a channel about half way down the inner 

 surface of the quadrate. The preopercle has a large ridge witii the 

 usual channel behind it. Its lower edge is sharply toothed. The 

 interopercle is wide but is nearly covered by the peopercle. The 



