246 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



when identified, will be found to be similar to 

 those studied by DimitrofF. 



Order 3 POLYMASTIGINA Blochmann 1895 



Suborder 1 Monomonadena Kudo 1939 



Family CHILOMASTIGIDAE Wenyon 



1. Chilomaslix echinonim Powers, 1935. 



In intestinal ceca of the sea urchin, Tripneusles 

 esculentus. Discovered by Powers (1935) in the vicinity 

 of Bird Key, Tortugas. 



Class 2 Sarcodina Hertwig and Lesser 

 1874 



Subclass 1 Rhizopoda von Siebold 1845 



Order 1 PROTEOMYXA Lankester 1885 



The wTiter is not familiar with reports of rep- 

 resentatives of this group in the Gulf. 



Order 2 MYCETOZOA de Bary 1859 



1. A mycetozoan. Hopkins (1931) made ob- 

 servations on an unidentified mycetozoan at 

 Tortugas. 



Order 3 AMOEBINA Ehrenberg 1830 



The principal report on the amoebae of the 

 Gulf which has come to the attention of the writer 

 is Schaeffer's (1926) lengthy paper on taxonomy 

 of the amoebae. He described a number of new 

 species from Key West and Tortugas and pro- 

 posed an extensive revision of the nomenclature 

 of the free-living amoebae. As Hyman (1940) 

 has pointed out, SchaefTer's terminology has not 

 been generally accepted. Nevertheless, the no- 

 menclature of this group has remained unsettled 

 and has given rise to a considerable body of 

 literature which was recently reviewed briefly by 

 King and Jahn (1948). For the sake of conveni- 

 ence, Schaeffer's terminology is followed here in 

 listing the species he reported. This is not in- 

 tended to imply that the writer holds any opinion 

 concerning the taxonomy of the group. 



Family CHAIDAE Poche 



1. Trichamoeba sphaerarum SchaefFar, 1926. 



Schaeffer (1926) observed this amoeba in towings and 

 upon floating seaweed. He found it to be a common 

 species in the vicinity of Tortugas. 



2. Trichamoeba pallida Schaeffer, 1926. 



Schaeffer (1926) easily obtained this organism in Tor- 

 tugas by letting a small stream of sea water filter through 

 a small wad of cotton for a few days. 



3. Melachaos fulvum Seha,efSeT, 1926. 



Found by Schaeffer (1926) in irrigated cultures in 

 Tortugas. 



Family MAYORELLIDAE Schaeffer 



4. Flabellula mira Schaeffer, 1926. 



According to Schaeffer (1926, p. 48), found in Key West, 

 Tortugas, and Cold Spring Harbor, Long Island, among 

 blue-green algae. Hopkins (1931) studied the life history 

 of this amoeba at Tortugas. 



5. Flabellula citata Schaeffer, 1926. 



Schaeffer (1926) saw this amoeba in salt water at Tor- 

 tugas, at Cold Spring Harbor, and at Casco Bay, Maine. 

 Hopkins (1931) studied, also, the life history of this 

 amoeba at Tortugas. 



6. Flabellula crassa Schaeffer, 1926. 



Discovered by Schaeffer (1926) in irrigated sea water 

 cultures in the laboratory at Tortugas. 



7. Flabellula pellucida Schaeffer, 1926. 



In describing this species Schaeffer (1926, p. 54) stated 

 that this marine amoeba was found with blue-green algae 

 from Key West harbor, Florida. His tabulation of 

 species (p. 22) indicates that it was found at Tortugas. 



8. Mayorella conipes Schaeffer, 1926. 



Found by Schaeffer (1926) at Tortugas and at Long 

 Island Sound and Great South Bay, Long Island. 



9. Mayorella gemmifera Schaeffer, 1926. 



According to Schaeffer's (1926) description (p. 50), this 

 organism was observed both at Tortugas and Cold Spring 

 Harbor. His tabulation (p. 22), however, indicates that 

 it was found only at Tortugas where it was collected by 

 running sea water through cotton. 



10. Mayorella cryslallus Schaeffer, 1926. 



Discovered by Schaeffer (1926) in salt water aquaria in 

 the laboratory at Tortugas. 



11. Vexillifera aurea Schaeffer, 1926. 



Found by Schaeffer (1926) in salt water aquaria at the 

 laboratory at Tortugas and also at Cold Spring Harbor. 



12. Strio'atus tardus Schaeffer, 1926. 



Schaeffer (1926) stated (p. 26) that this amoeba was col- 

 lected with blue-green algae in shallow water near a dock 

 at Key West harbor. His table (p. 22) indicates that it 

 was found at Tortugas. 



13. Dactylosphaerium acuum Schaeffer, 1926. 



Found by Schaeffer (1926) among blue-green algae in 

 very shallow water at Key West harbor and also in salt 

 water aquaria in the laboratory at Tortugas. 



14. Pontifex maxirnus Schaeffer, 1926. 



Schaeffer (1926) discovered this species in cultures from 

 Casco Bay, Maine, and observed it, also (p. 22) in Tortugas. 



Family THECAMOEBIDAE Schaeffer 



15. Rugipes vivax Schaeffer, 1926. 



Schaeffer (1926) collected this species at Tortugas and 

 in tidal pools at Cold Spring Harbor. 



16. Thecamoeba orbis Schaeffer, 1926. 



This amoeba was discovered by Schaeffer (1926) on 

 floating seaweeds in the vicinity of Tortugas, and it was 

 also seen at Cold Spring Harbor. 



