South American Rotifer a. By J. Murray. 343 



of these are of doubttul value, but I have not time in this place 

 to examine them critically. My own record of M. cornuta is 

 certainly an error. 



In the countries dealt with in this paper I collected twenty- 

 nine undoubtedly distinct species. Fourteen of them are unde- 

 scribed species ; two were discovered previously or simultaneously 

 by Mr. Harring in North America ; I describe twelve new species 

 here. 



A number of other forms were observed, but are not noticed 

 here, as they were still stth judice when I found it necessary to 

 hurriedly conclude the work. In consequence of this haste I fear 

 that more errors may have crept in than would otherwise have 

 been the case. Certainly the plates were drawn with a very 

 undesirable expedition. 



Twenty species in this list are new records for South America, 

 making a total of thirty-seven for the Continent, subject to some 

 discount for the unrecognizable species. 



LIST OF SPECIES COLLECTED. 



New records for South America are indicated by an asterisk. 



In Brazil. 



*Catliypna grandis sp. n. M. quadridentata Ehr. 



C. luna Miiller. *M. amazonica sp. n. 



C. leontina Turner. *M. bicornis Stenroos. 



*C. affinis Levander. *M. punctata sp. n. 



*(7. Gurvicorriis sp. n. *M. ohtusa sp. n. 



*C. nitidasi^. n. M. closterocerca Schmarda. 



*C. hastata sp. n. *M. truncata Turner. 



*C. hornenianni Ehr. *M. furcata sp. n. 



*G. aculcata Jakubski. *if. liamata Stokes. 



*G.flexilis Gosse ? *M. arcuata Bryce. 



C. ludiuigii Eckstein. *M. decipiens sp. n. 



*C. sp. (Harring's, see pi. XI Y, *M. cochlearis sp. n. 



fig. 30). *M. sp. (Harring's longstyled, 



Monostyla lunaris Ehr. not figured). 



M. bulla Gosse. 



In Chile. 



Cathypna luna Milll. Punta Arenas. 



C. aculcata Jak. Antofagasta ; Valparaiso. 



Monostyla closterocerca Schm. Antofagasta ; Valparaiso^ 



In Argentina. 



Monostyla lunaris Ehr. M. closterocerca Schm. 



2 A 2 



