ANNELIDA— ERRANTIA, 



243 



X. Glycerites Hinde. 

 Jaws consisting of a simple curved hook, with a wide base, with- 

 out smaller teeth. Ordovicic. 



Example: 43, G. sulcatus Hinde Lorraine (Fig. 1528, a). 



B. Conodonts. 

 XL Polygnathus Hinde. 

 Minute, variously formed conodonts and minute, tuberculated 

 plates. Devonic. 



Examples: 44, P. dubius Hinde Genesee-Waverly, pectinate 



Fig. 1533. Conodonts. a, Prioniodus panderi,y(^\w b, PJ alatuSy'Vn • c-i 

 Polygnathus dubius^ X ^4 ; various forms of pectinate teeth found associated. (After 

 Hinde. ) 



teeth (Fig. 1533.^-0. fimbriate teeth (Fig. I534,«.&), crested teeth 

 (Fig. 1534, c-e) ; 45, P. coronatus Hinde Genesee (Fig. 1535, a) ; 



^^e 



Fig. 1534. Conodonts. Polygnathus dubius^ X 14- ^> ^^ fimbriate teeth; c-e, 

 crested teeth. (These, and the pectinate teeth shown in Fig. 1533, c-i, were found 

 associated. (After Hinde. ) 



46, P. solidus Hinde Genesee (Fig. 1535, 6) ; 47, P- crassus H. Gene- 

 see (Fig. 1535, c) ; 48, P. pennatus Hinde Genesee (Fig. 1536, a) ; 

 49, P. truncatus Hinde Genesee (Fig. 1536, c; var. 1536, h)\ 50, 



