XVI 
CONTENTS. 
VERMES. By C. F. Lutken, Ph.D., F.R.Dan.Ac. 
Page 
Rotatoria. 419 
Chaetopoda .... 420 
Discophora .... 426 
Page 
Turbellaria .... 427 
Trematoda .... 428 
Cestoida ...... 431 
Page 
Nematoda .... 432 
Acanthocephala . 435 
Gephyrea. . . . . 435 
ECHINODERMATA. By C. F. Lutken, Ph.D., F.R.Dan.Ac. 
Publications . . 436 
Anatomy &c. . . 438 
Holothuriidas . . 440 
Ecbinidee 441 Ophiuridse .... 447 
Asteriidss .... 447 Crinoidae ...... 450 
CCELENTERATA. By C. F. Lutken, Ph.D., F.R.Dan.Ac. 
Anthozoa 
Page I 
451 I Hydrozoa 
Page 
460 
PROTOZOA. By C. F. Lutken, Ph.D., F.R.Dan.Ac. 
Spongozoa 
Rhizopoda 
471 
482 
Gregarinae .... 484 
Infusoria 
485 
Index to Genera and Subgenera described as new 
489 
