THE INVERTEBRATE COURSE. 



VII. 



TABLE III. 



CLASS LIST AS POSTED ON THE AFTERNOON OF AUGUST 8, 1920, ON RETURNING 

 FROM A COLLECTING TRIP TO THE NORTH FALMOUTH FLATS. 



(Collecting from 3:20 to 6:00; low tide 5:00.) 



PORIFERA 

 C lion a 

 Microcione 

 Tethya 



CCELENTERATA 



Edwardsia 



Eloactis 



Hydractinia 



Pennaria 



Podocoryne 



Obelia commissuralis 



Sagartia leucolena 

 lucicc 

 modesta 



Sertularia 



Eudendriinn album 



PLATYHELMINTHES 

 Cerebratulus 

 Lineus 

 Micrura 

 Stylochus 

 Synccclidium 



NEMATHELMINTHES 

 Pontonema 



ECHINODERMA 



Autolytus 

 Arabella 

 Arenicola 

 Cirratulus 

 Clymenella 

 Diopatra 

 Enoplobranchus 

 Glycera sp. 

 Harmothoe 

 Hydroides 

 Lepidonotus 

 L u m brin eres tenuis 

 Nereis limbata 

 virens 

 Pectinaria 

 Phascolosoma 

 Phyllodoce 

 Pista 



Platynereis 

 Podarka 

 Polycirrus 

 Sabella 

 Sabellaria 



Scoloplos ucutits 

 fragilis 

 robustns 



Spirorbis 



Sthenelais 



Maldane 



BRYOZOA 



Bugula 



Crisia 



Flustrella 



Lepralia 



Membranipora 



Schizoporella 



ARTHROPODA 

 Amphithoe 

 Balanus 

 Callinectes 

 Caprella 

 Carcinides 

 Chiridotea 

 Crangon 

 Gammarus 

 Heteromysis 

 Idothea baltica 



metallica 

 Libinia dubia 



emarginata 

 Limulus 

 Pagurus pollicaris 



longicarpus 

 Pal&monetes 

 Panopeus 

 Pinnixa 

 Orchestia 

 Talorchestia 

 Ovalipes 

 Uca 

 Virbius 

 Hausterius 

 Jcrra 

 Ericksonella 



MOLLUSCA 



Chatopleura 



PELECYPODA 

 Anomia 

 Cumingia 

 Ensis 

 L&vicardium 



Macoma 

 Mactra 



Modiolus demissus 

 modiolus 

 My til us 

 Nucula 

 Pecten 

 Petricola 

 Solemya 

 Tellina 

 Teredo 

 Venus 

 My a 

 Ostrcca 



GASTEROPODA 

 Acme a 

 Bittium 

 Busycon 



Columbella avara 

 lunata 



Crepidula convexa 

 fornicata 

 plana 

 Lacuna 



Littorina litorea 

 palliata 

 rudis 



Nassa obsoleta 

 trivittata 

 Natica duplicata 



her os 

 Odostomia 

 Urosalpinx 



CHORDATA 



Amaraccium 



Botryllus 



D o lich oglossus 



Molgula 



Perophora 



Styela 



126 species 



