336 C. F. ROUSSELET ON THE ROTATORIAN FAUNA OF BOSTON. 



Bdelloida. 



Some Bdelloida, contracted and not recognisable. 



Ploima. Il-loricata. 



Synchaeta longipes, Gosse, abundant. 



,, pectinata, Ehrenbg. 



., cecilia, Rouss. 



,, oblonga, Ehrenbg. 



,, stylata, Wierz. 

 Triarthra longiseta, Ehrenbg. 

 Polyarthra platyptera, Ehrenbg. 



,, after a, Hood. 



Notommata ansata, Ehrenbg. 

 Diglena forcipata, Ehrenbg. 

 Taphrocampa. viscosa, Levander. 

 Proales daphnicola, Thompson. 

 ,, ptetromyzon, Ehrenbg. 



Ploima. Loricata. 



Rattulus bicristatus, Gosse. 



,, rattus, Ehrenbg. 



„ cylindricus, Imhof. 



,, longiseta, Shrank. 

 Diarella insignis, Herrick. 



,, stylata, Eyfert. 



,, tenuior, Gosse. 

 Diaschiza gibba, Ehrenbg. 

 Dinocharis pocillam, Ehrenbg. 

 Polychaetas subquadratas, Perty. 

 Euchlanis hyalina, Hudson. 

 Hudsonella pygmaea, Caiman. 

 Cathypna rusticola, Gosse. 

 Ploesoma lenticulare, Herrick. 

 Metopidia rhomboides, Gosse. 



„ lepadetta, Ehrenbg. 



,, acuminata, Ehrenbg. 



Monostyla lunaris, Ehrenbg. 

 Pterodina parva, Ternetz. 



