Appendix 6.3(34). Continued 



Pelecypoda (bivalves) 

 Unionidne (clams) 



Anodonta grandis 



Anodonta imbecillis 



Villosa lienosa 

 Sphaeriidae 



Sphaerium sp . (fingernail clams) 



Freshwater meiobenthos (Thomas 1976) , Lafourche Parish) 

 Nematoda 



Annelida 



Mollusca 



Gastropoda 



Pelecypoda 



Arthropoda 



Crustacea 



Amphipoda 



Asellus sp . 



H yalella azteca 

 Isopoda 

 Copepoda 

 Ostracoda 

 Cladocera 

 Decapods 



Insecta 



Ephemeropter (mayflies) 

 Caen id ae 

 Baetida 



Odonata (dragonf lies , damselflies) 

 Gomphidae 

 Acschnidae 

 Libellulidae 

 Les tidae 

 Coenagrionidae (damselflies) 



Hemiptera (true bugs) 



Corixidae (water boatmen) 

 Notonectidae (back swimmers) 

 Pleidae (pigmy backswimmers) 

 Naucoridae (creeping water bugs) 

 Belostomatidae (giant water bugs) 

 Nepidae (water scorpions) 

 Gerridae (water striders) 

 Veliidae (ripple bugs) 

 Hydrometridae (marsh treaders) 

 Hebridae (velvet water bugs) 

 Mesoveliidae (water treaders) 

 Saldidae (shore bugs) 



continued 



240 



