THE OPALINID CILIATE INFUSORIANS. 395 



*H. albomarginata (Spix), No. 48856, 55 mm. long, female, ovary small, eggs 

 young; Bonito, Brazil; Branner; rather many Cepedea multiformis. 



*Nos, 14191, 14192, 32 and 30 mm. long; Nicaragua; Bransford ; Opalina 



multiformis. 

 No. 14190, 38 mm. long ; Nicaragua ; Bransford ; no Opalinids. 

 *H. andersoni X H. pickeringii ( ?) ; in a single living specimen of this hybrid ( ?) 



tree frog, from Oberlin, Ohio, were numerous Opalina obtrigonoidea. 

 *U. arborea. Numerous European specimens of this tree frog have yielded to 



many observers and to the author Opalina obirigona. 

 *H. arborea japonica (Schlegel), No. 23907, 32 mm, long; Onogami, Japan; I. 

 Ijima ; a few Opalina obtrigona. 

 No. 23908, same label ; no Opalinids. 



No. 17511, 25 mm. long; Fusan, Korea; 1885; Jouy ; no Opalinids. 

 No.s. .80742, 30743, 28 and 25 mm. long; lliyazaki, Kiusiu, Japan; C. A. 



Clark; no Opalinids. 

 Nos. 31915 and 31920, 30 and 29 mm. long ; Shikoku, Japan ; May 11 ; H. M. 



Smith : no Opalinids. 

 *No. 52354, 35 mm. long ; Yulu River, southern Manchuria, China ; A. de C. 

 Sowerby ; one small bunch of OpaUnae seeij, but not identified. 

 H. arborea meridionalis (Boettger), No. 37189, 42 mm. long; Oran, western 



Algeria ; 1890 ; Werner ; no Opalinids. 

 *H. arborea savignyi (Audouin), No. 37190, 40 mm. long; Jerusalem; Werner; 



many Opalina obtrigona. 

 H. arborea stephcni (Boulenger). Nos. 21211, 21212, 28 and 18 mm. long; Korea; 



1883 ; Jones ; no Opalinids. 

 *n. arenicolor (Cope), No. 19736, 46 mm. long; female with eggs; Fort Hua- 

 chuca, Arizona ; 1892 ; T. E. Wilcox ; many Opalina obtrigonoidea. 

 No. 26156, Guanajuato, Mexico ; A. Duges ; no Opalinids. 

 No. 8656, 48 mm. long ; Utah ; 1872 ; Dr. H. C. Vanow ; no Opalinids. 

 No. 15716, 48 mm. long; Prescott, Arizona; Capt. W. L. Carpenter; no 

 Opalinids. 

 *H. aurea (Lesson), Australia; RafE reports Protoopalina hylarum. 



*No. 15478, 67 mm. long; Wollongong, lUawara, New South. Wales, Aus- 

 tralia ; January, 1840 ; United States exploring expedition ; myriads of 

 Protoopalina austraUs. 

 No. 58061, King George Sound, Australia ; 1906 ; Julius Hurter, sr. ; no 



Opalinids. 

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

 toopalina] from this species of host from Queensland, Australia. 

 * H. baudinii Dumeril and Bibron, No. 30410, 53 mm. long ; Cordova, Mexico ; 

 F. Sumichrast ; very many Cepedea baudinii. 



*No. 24817, 56 mm. long ; Guatemala ; H. Hogue ; Cepedea baudinii. 



* No. 24819, 47 mm. long; same label; Cepedea batidinii, Opalina guate- 

 malae, also BalantidiV'm. 



* No. 24823, 50 mm. long ; same label ; Cepedea baudinii. 



No. 24818, 58 mm. long; female with eggs; same label; no Opalinids. 

 No. 16563, 65 mm. long; Orizaba, Mexico; Sumichrast; no Opalinids (poorly 



preserved ) . 

 No. 25137, 58 mm. long ; female with eggs ; Sacluc, Guatemala ; Berendt ; no 

 Opalinids (poorly preserved, soft). 

 ^■H. caerulea, Cleland and Johnston (1910) report "Opalina sp." [doubtless 



a Protoopalina] from Queensland, Australia. 

 H. chinensis Guenther, No. 35529, 38 mm. long; Shensi, China; E. Blackwelder; 

 no Opalinids. 



