TWENTY-THIRD ANNUAL REPORT 99 



Potomac snail (fresh water) '. V'wiparus v'w'iparus 



Japanese snail (fresh water) Viviparus malleatus 



Fresh-water mussel Anodonta implicata 



CRUSTACEANS 



Whale barnacle _ Coroiuda diadema 



Common rock barnacle Balanus haJanoides 



Ivorj^ barnacle Balanus ehurncns 



Goose barnacle ., Lepas anatifera 



Silver shrimp Palaemonetes vulgaris 



American lobster Ilomarus americanus 



Locust lobster Scyllarides aequinoctialis 



Spiny lobster Panulirus argus 



Guinea-chick lobster Panulirus guttatus 



Horseshoe crab Limulus polyphemus 



I>and Crab Gecarcinus lateralis 



T>and Hermit crab Cenobites diogenes 



Hermit crab Eupagurus pollicaris 



Hermit crab Etipagurus longicarpus 



Red Hermit crab Petrochirus bahamensis 



Fiddler crab Gelasimus pugilator 



Fiddler crab Uca minax 



Rock crab Cancer irroratus 



Blue crab CalUnectes hastatus 



Stone crab Menippe mercenaria 



Ghost crab Ocypoda arenaria 



Spider crab Libinia emarginaia 



Spider crab Libinia dubia 



Mud crab Panopaeus depressus 



Green crab Carcinns grannlatus 



Lady crab Platyonychus occellatus 



Long-armed spider crab Lambrus pourtalesii 



Oyster crab Pinnotheres ostreum 



Bermuda sand crab Calappa flamma 



Gulf- weed crab Portunus sayi 



Red crab Carpilius corallinus 



Jonah crab Cancer borealis 



Turtle crab Nautilograpsiis minutus 



Sand shrimp Crangon vulgaris 



Mantis shrimp Squilla empusa 



Sand Bug Hippa talpoida 



Sand Flea Orchestia agilis 



Sand Flea .. Talorchestia longicornis 



Wood Borer or Gribble Limnorea lignorum 



Salt water shrimp Gammarus locust a 



Fresh-water Cravfish Cambarus affinis 



