EIGENMANN: the freshwater fishes of BRITISH GUIANA 29 



The Lau-lau is mentioned without referring it to any other name. 



One other collection of note was made in British Guiana by a Mr. A Ehrhardt. 

 He collected at Mocco Mocco and Arisaro, spending about two months on the Esse- 

 quibo. Part of his collection is in the British Museum, part in the Berlin Museum. 

 The portion in the British Museum was reported upon by Giinther in his "Catalogue 

 of Fishes in the British Museum," and in a short paper " On New Species of Fishes 

 from the Essequibo," published in the Annals & Magazine of Natural History, 

 December, 1863. 



The new things described are: Acara pundulata = Crenicara punctulata 

 (Giinther) ; Pimelodus holonielas = Rhamdia holomelas (Giinther) ; Auchenipterus 

 obscuriis = Trachycorystes obscurus (Giinther); Helogenes marmoratus Giinther; 

 CreniicJms spilums Giinther; Leporinus megalepis Giinther = Leporinus maculatus 

 Mliller & Troschel, and Xiphoramphus ferox Giinther = Acestrorhynchus falcatus 

 (Bloch). 



As I have already stated in the introduction, in none of these papers was a 

 definite locality given. 



In recent years Mr. T. Sidney Hargreaves collected fresh-water fishes in 

 British Guiana. They were deposited in the Georgetown Museum. Few have 

 definite locality labels. Mr. Hargreaves published a series of articles in "The 

 Argosy," a local paper, which were reprinted in book form. The booklet is only 

 of local interest, and adds but little which is of a sufficiently specific nature to be 

 quoted in a scientific work. 



