241 



POSIPERA. 



Sponges ue not abundant in the lake. They are found in small patches on 

 boards, sticks and other things near the margins of the lake. They grow mnch 

 more Inxnriantlr in the outlet of the lake There they sometimes form patches 

 several square feet in extent. 



Antra rindcs L. specimens of Itmlru were exceedingly rare. On oneoceasion 

 a few were taken on a submerged stick near Hack Stomp Point. 



Flat worms were not systematically collected and none of these collections 

 have been identified. Of Tinbettmiams there were several species. Auua taim is 

 infested by a tape worm and by a Dtsfsmwm. 



X© attempt was made to collect thread worms. Gmdiuf is exceedingly 

 abundant on the margins daring the latter part of summer. I counted as many 

 as twelve in the area of one foot square. 



1S5ELDU. BY BESSIE C. SIDGir. 



So OoetopnAa were collected. 



5© systematic attempt was made to get large numbers of l ee c hes , but speci- 

 mens were preserved whenever found. In the elasaSescon I hare followed 

 TerrilL 



Aqtfcrffc a— n V ij frMM Grube. Thirteen specimens from Turkey Lake. 



jMpfefcj Mi i m VerrilL Fourteen specimens. 



Cfcpsuw awrratien Kesing. Three specimens. 



Cleanae orama sr««aw VerrilL This species was not found in Turkey lake. 

 Two specimens were taken in Tippecanoe Lake. 



C&paat oraam rmgmm VerrilL Four specimens. 



CfcpenK w w variety d VerrilL Ten large specimens corresponding with 

 the second specimen described by Verrill were found, most of them on turtles. 



O^aeaapw^ern VerrilL One specimen. 



Chpsime napiKKra to/imfm VerrilL Three specimens. One of these, one- 

 half inch long, was found under a stone in front of the laboratory. A number of 

 young were attached to it. 



Ckftfitte faKMa VerrilL One specimen. 



CLnjiuu jiinffiiHi ~iri~r~ % ** — nl Ones 



Cfeanae ek/an? VerrilL Five : 



