NK«' ASU MTTLE known PALEOZOIC 
ll.—- i.rc-in.ixillnri' 
or not, can not be made out in the prea- 
eiil of the i»|iifiinei». 
iIh* pciilf* on llieiii an* iilfiiticnl in clinracter. 
Tho f.»nii of the ImmIv wiu* apparently fusiform. The radii of lx)th the dorsal 
and minUI fin* an* mther finely hninclied at their distal portions. The scales are 
•iiliciual an.l an* rather aliarply rhoinhic, ami are arranged in the usual oblique 
lanidn. They extend iniieh farther on the iipiK*r than on the lower base of the 
caudal An Their (taiioid surface is marked by a few shallow and irregular fossa?, 
which are nnm* clo*a*ly a|m*H*«l on the scales near the head than elsewhere. The 
scale* an* of nM*diinn six**, and then* an* twenty-three in an oblique row, commencing 
at the aupiMMMsl |Hmition of the first ray of the anal fin, and extending upward and 
furwanl to the dorsal An. 'I'lie |Mtrtiun of the dorsal fin which is re])re8eiited in the 
»|a*rinien c'oiitain* thirty-two rays, or spact*s for them. They are moderately stout, 
ainl an* whmi divhhsl. 
The head is short. •and the |in*ma\iltnry bonier overhangs the dentary bone.s. 
The pniAle desc4>iids "t«*<*ply. anti almost vertically, in front of the orbits, and rises 
fnaii the h*»« sloping fnnitnl n*gion to the jMisterior parietal border. The front is 
nearly Hat in the tmiisverw* din*4*tioii. The su|K‘rior plane of the skull is formed by 
the fniiiUl and imrietal Inniea, and ptemtica ami wcipitals are not visible. An im- 
Mr.ASrKKMKXT.S. 
MM. 
272 
117 
