474 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.52. 



5. Edge of a swamp north of the town of Riverside. 



6. Ornamental pool on alligator farm, near East Lake Park, Los 

 Angeles. 



7. Pool formed by the Los Angeles River at a point about 14 

 miles south of the city, on highway to Long Beach. 



8. Artificial lake in West Lake Park, Los Angeles. 



9. Artificial lake in Echo Park, Los Angeles. 



10. Silver Spring reservoir, eastern section of Los Angeles, near 

 Sunset Boulevard. 



11. Buena Vista reservoir, Elysian Park, Los Angeles. 



12. Ornamental fountain in St. James Place, Los Angeles. 



LIST OF THE SPECIES COLLECTED. 



Notommata cerherus (Gosse), 12. 



Notomnmta pacJiyura (Gosse) = Copeus pachyurus Gosse, 11. 



Notommata tripus Ehi-enberg, 10. 



Taplirocampa annulosa Gosse, 1, 3, 6, 12. 



Proales decipiens (Ehrenberg), 1, 6. 



Pleurotrocha petromyzon Ehrenberg, 1, 3, 4, 5, 7. 



Pleurotrocha dapJinicola (Thompson) = Proales daphnicola Thomp- 

 son, 4. 



Eosplwra najas Ehrenberg, 7. Not previously recorded from the 

 United States. 



CepJialodella catellina (MiXUeT) = Diglena catellina (Miiller), 1, 

 2, 6, 11. 



CepJialodella forjicula (Ehrenberg) = Furcularia forficula Ehren- 

 berg, 1, 2, 3, 6, 8, 12. 



DiascMza auriculata (M^^r) = DiascMza lacinulata (Miiller), 1, 10. 



Diaschizaforficata (Ehrenberg) = DiascMza caeca Gosse, 2, 6. 



Diascliiza gihha (Ehrenberg), 1, 2, 3, 4, 6, 9, 11, 12. 



DiascMza glohaia Gosse, 6. 



DiascMza gracilis (Ehrenberg), 5, 6. 



DiascMza Jioodii Gosse, 1, 5, 6, 10. Not previously recorded from 

 the United States. 



DiascMza tenuior Gosse, 1, 6, 10, 11. 



Monomm/ita orhis (Muller) = Furcularia longiseta (Miiller), 5. 



DicranopTiorus fordpatus (MuRer) = Diglena forcipata (Miiller), 1, 

 2, 3, 6, 11. 



Encentrum felis (Miiller) = ProaZ^s felis (Miiller), 5. 



Epiplianes senta (Miiller) = Hydatina senta (Miiller) , 1 . 



Braclhionus angularis Gosse, 1, 8, 9. 



BracTiionus angularis caudatus Barrels and Daday, 4, 8, 9. 



BracMonus calycijlorus Pallas = J5mcMonus pala Ehrenberg, form 

 dorcas Gosse, 1; form ampMceros Ehrenberg, 1, 4. 



BracMonus capsulijiorus Pallas; form hakeri Ehrenberg, 1, 2, 3, 

 4, 5, 6, 7, 8, 9, 10, 11, 12; form urceolans Miiller, 1, 5, 9. 



