contents op vol. tt. 1 



Order POLYPLAGOPHORA, 336 



Family CHlTONIDiE, 336 



Family NEOMENIID^, 34t 



Order NUGLUOBPANCEIATA, 34t 



Family FIEOLID^, 348 



Family CARINARIID^, 349 



Family ATLANTIC^, . . . . . .350 



Subclass OPISTHOBRANCHIATA, . . 351 



Order TEG TIBRANGHIATA, 352 



Family PHILINIDJE, 352 



Family TORNATELLID^, 354 



Subfamily TORNATELLINjE, . . . .355 

 SVBFAMIJ.Y RINGIGULIN^, . . . .357 



Family CYLICHNID^, 358 



Family BULLID^, 359 



Family APLUSTRID.E, . . . - . . .361 



Family LOPHOCERCID^, 362 



Family APLYSIID^, 363 



Family PLEUROBRANCHID^, . . . . 366 



Family UMBRELLID^, 367 



Order NUDIBRANGHIATA,. . . . . .368 



Suborder Anthobranchiata, 369 



Family DORIDID^, 369 



Family DORIDOPSID^, 375 



Family POLYCERID^, . . . . . .375 



Suborder Aiolobranchiata, 381 



Family TRITONIAD^, 381 



Subfamily PROGTONOTIN^, . . . .383 



Subfamily DOTONIN^, 383 



Family ^OLID^, 384 



Subfamily GLAUGIN^, 384 



Subfamily jEOLIN^, 385 



Subfamily HERM^INJE, 388 



