n tents. xi 



CHAITKR XV. 



PAGB. 



Sub-class 2, Siphonophora ; Order i, Calycophoridae ; Order 2, 

 Physophorida.'. Sub-class 3, Calvco/.oa ; Order I, Lucer- 

 naridce, ........... 96 



CHAPTER XVI. 



Sub-class 4, Discophora; Order I, Rhizostomida ; Order 2, 



Pelagiada ........... 102 



CHAPTER XVII. 



Sub-class 5, Ctenophora; Order I, Eurystomata ; Order 2, 



Saccatae; Order 3, Taeniataj ; Order 4, Lobatze, . . . lob 



CHAPTER XVIII. 



Class 2, Actino/oa; Sub-class i, Zoantharia; Order I, Malaco- 

 dermata: Order 2, Scleroderniata ; Order 3, Antipatharia, 



........... 1 09 



CHAPTER XIX. 



. '< yonaria ;' Order i. Alcyonaceoe ; Order 2, Tubipo- 

 raceae ; Order 3, Pennatulacea? ; Order 4, Gorgon aceas ; 

 Order 5, Isidaceae ; Order 6, Briarcacese ; Order 7,J Coral - 



........ . . i i S 



CHAPTER XX. 



- .in-doiii IV. Mchinodt-nnata. ("la^ I, Stellerida ; Order I, 

 HI.; ; < )idn ^ ( inioi.U'.i ; ( hder 4, 



Ophiuroidca ; ( )rdrr 5, l'.ii>in-..iK .1 ; < >i>K r (>, A^teioidra, . \2\ 



< HAITI k XXI, 



i.>: 



