INDEX TO TECTIBRANCHIATA, 



WITH SPIRAL. I \ I I.KN \L 8HBU .-. 



NOTK. The names of species believed to be valid are primal 

 in Roman type; the names of genera and other groups in SMALL 

 CAPITALS; the names of all synonyms are in Italic type. 



351 



290 

 146 

 290 

 388 

 324 

 146 

 152 

 261 

 267 



lf>4 

 371 

 196 

 172 

 280 

 224 

 LMI4 

 388 



327 



343 

 335 



::_".> 

 268 

 134 

 260 

 410 

 .",47 

 361 



427 



