GULF OF MEXICO 



255 



creatod, in having characters of botli hotcrotrichs and 

 hypotrichs. Ho further stated that Kahl (li)3r)) was 

 unable to classify Lepsi's species. 



Order 3 CHONOTRICHA Wallengren 1895 



The writer does not know of any member of tills order 

 which has been reported from the Gulf of Mexico. 



Order 4 PERITRICHA Stein 1859 

 Suborder 1 Sessalia Kahl 1935 



Tribe 1 Aloricata Kahl 

 Family EPISTYLIDAE Kent 



1. Epistylis. 



Pearse (1932a) found undetermined sjjecies of Epistylis 

 on the gills of the following crabs at Tortugas: Coenobita 

 ctypeastus (Herbst) from Garden Key and Long Key, 

 Geograpsus lividus (Milne Edwards) from Bird Key Reef, 

 and Pachy/irapsus transversus (Gibljes) from Long Key. 

 He also found Epistylis on the abdominal appendages of 

 the isopod, Ligyda exotica (Roux) from the walls of the 

 moat at Fort Jefferson on Garden Key. 



Family VORTICELLIDAE Fromental 



2. Vorticella marina GreeflF, 1870. 



Observed by Pearse (1932) in Pond 2 on Long Key, 

 Tortugas. Noland and Finley (1931, p. 97) held the 

 opinion that "V. marina Greeff, 1870, is possibly identical 

 with V. nebulifera O. F. M., which was originally described 

 from salt water. Further study of the marine Vorticel'ae 

 is necessary before synonymy of the marine species can be 

 definitely settled." 



Class SucTORiA Claparede and Lach- 

 mann 1858 



Although it is probable that members of this group are 

 common in the Gulf of Mexico, the writer is not familiar 

 with reports of their occurrence there. 



LITERATURE CITED 



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1949. Acclimatization of a marine free-living ciliate 

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Beneden, E. Van 



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Bigg A R, R. B. 



1932. Studies on ciliates from Bermuda sea urchins. 

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Bui.I.I.NGTON, W. E. 



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1933. Biology of the Protozoa. Philadelphia. 



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DiMITBOFF, V. T. 



1926. Spirochaetes in Baltimore market oysters. Jour. 

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1931. Study of the life-histories of two marine amoebae 

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Hyman, L. H. 



1940. The invertebrates: Protozoa through Ctenophora. 

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