A 





• in 





FLOOR OF LONG ISLAND SOUND 



Pleurobrachia: a comb-jelly (upper-left) 



Loligo: a squid (upper-middle) 



Sarsia: a hydroid jellyfish (lower-left and middle-right) 



Raja: a ray (lower-middle) 



Arbacia: a sea-urchin (bottom-left) 



