162 MARINE INVERTEBRATES 
Orders Families Genera Species 
AMPHICTENIDE Cistenides C. Gouldii 
Clymenella C. torquata 
MALDANIDE 1 Maldane M. elongata 
ARENICOLIDE <Arenicola A, marina 
SABELLIDE Sabella S.microphthalma 
: Serpula S. dianthus 
ace Venere S. borealis 
Subclass 
Oligocheta 
(Mostly terrestrial or fresh-water forms) 
Class 
GEPHYREA 
Sipunculus S. nudus 
SEURCULOMDES Phascolosoma P. Gouldit 
Class 
HIRUDINEA 
(Leeches ) 
