408 BULLETIN 120, UNITED STATES NATIONAL MUSEUM. 



L. insularum Barbour, No. 52404. 90 mnn. long; Taboga Island, Bay of Panama.; 

 Burgdorf and Schild ; iio Opalinids. 



* L. microtis (Cope), Nos. 38102. 38103, 38109, 37, 27, and 23 mm. long; Lake 

 Amatitlan, Guatemala; February, 1006; S. B. Meek; Zelleriella leptodactyli. 



* No. 38107, 35 mm. long; same label; Zelleriella leptodactyli, Nyctotherus, 

 and Balantidium. 



* L. ocellatus (Linnaeus), No. 22749, 76 mm. long; La Plata, South America; 

 many Zelleriella brasiliensis. 



No. 22748, 70 mm. long ; same label ; no Opalinids. 



* Cordero (1919) reports a form which he identifies with Zelleriella antil- 



licnsis, from La Plata. 

 L. pentadactylus (Laurenti), No. 38714, 144 mm. long; Panama; R. E. B. Mc- 

 Kenney ; no Opalinids. (This animal was abnormal, great adhesions all 

 along the upper rectum.) 



No. 16618, 38 mm. long; Trinidad, West Indies; Gill; no Opalinids. 



* L. prognathus Boulenger. Cordero (1919) reports a form which he identifies 

 with Zelleriella antilliensis, from Tacuarembo, Uruguay. 



L. rubido (Cope), No. 49553, 44 mm. long; San Miguel; 6,000 feet altitude; 

 Yale Peruvian Expedition ; no Opalinids. 



* L. typhonins (Daudin), No. 36370, female with huge fat-bodies, 45 mm. long; 

 Chicara, Venezuela ; " Brooklyn Institute," Zelleriella mag^ia. 



No. 36369, 45 mm. long, female with eggs, same label ; no Opalinids. 



* Limnodynastes dorsalis (Gray), from Australian specimens Raff reports 

 Zelleriella biniicleata, Protoopalina " intestinalis,'' P. dorsalis and P. acuta, 

 also " abnormal forms (see fig. 101, p. 136) ; also Cleland and Johnston (1919) 

 report " Opalina sp." [doubtless a Protoopalina~^ from Queensland, Australia. 



L. peronii (Dumeril and Bibron), No. 26^409, 59 mm. long; Sydney, Austrania ; 

 J. D. Ogilby; no Opalinids. 



* No. 62748, 35 mm. long; Wandandian, New South Wales; Australia, 

 August 1, 1919 ; Protoopalina peronii. 



Nos. 62740, 62747, 46 mm. and 36* mm. long; both female with eggs; same 

 label ; no Opalinids. 



* Cleland and Johnston (1910) report " Opalina sp." [doubtless a Protoo- 

 palina] from Queensland, Australia. 



L. tasmaniensis (Guenther). No. 26410, 39 mm. long; Australia; J. D. Ogilby; 

 no Opalinids. 



* One specimen, Tasmania, Zelleriella binucleata, reported by Raff. 



* Limnomedusa macroglossa (Dumeril and Bibron) from an unnani'ed locality 



in Uruguay. Cordero (1919) reports Zelleriella antilliensis or a closely re- 

 lated binucleated species. 

 Lithodytes rhodopsis Cope, No. 10020; Tehuan tepee, Mexico; Sumichrast; no 

 Opalinids. 



Nos. 24815, 24816, 24 and 34 mm. long ; no Opalinids. 



Nos. 30325, 30326, 39 and 32 mm. long; Tehuantepec, Mexico; F. Sumi- 

 chrast; no Opalinids (poorly preserved). 

 *Paludicola bibronii (Tschudi), Nos. 38909, 38910, 38915, 38916, 38918, 38920, 

 38925, 38930, 8 specimens; Tolcahuano, Chile; Barbour, all infected, some 

 abundantly so, with Zelleriella paludicolae; one specimen had also Balan- 

 tidium and Nyctotherus. 



♦Cordero (1919) reports Zelleriella antilliensis or a closely related binu- 

 cleated species from Uruguay. It was probably Z. paludicolae. 



