2 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



on piir coast, together with a description and figure of a third species, 

 Oidium pnlvimtum Farlow, found on codfish sent from Gloucester by 

 Prof" A. Hyatt. In the Bevue for January, 1885, the editor, M. Casimir 

 Eouineguere, under the title of "Observations surle Coniothecium hertlie- 

 randi,'^ raised the question of the identity of the Co7iiothecium of Algiers 

 with our Glathrocystis—a point which could not well be settled by the 

 description and figure of M. Megnin. 



Fig. 1. Fig. 2. 



TonuLA ruLviNATA.— Fig. 1. Young fnictiferons hyphae. Fig. 2. A chain of matnre spores, mag- 

 rificd 700 diameters. 



The subject was still further discussed in the Revue for April, ^here 

 a number of interesting facts with regard to the prevalence of the red- 

 ness in France were cited. Specimens of red fish were received from 

 Bordeaux and Dieppe, and the redness was recognized by Eoumeguere 

 and Patouillard as due to the presence of Glathrocystis. On the testi- 

 mony of an eye-witness it is stated that in the market of Algiers fish 

 have been seen in which the redness had reached a stage such that the 

 liesh was so deliquescent that, on attempting to lift the codfish, the tail 

 separated from the body. From all accounts there seems to be no doubt 

 that sickness was produced as a result of eating the red fish in Algiers. 

 On the other hand, according to M. Cou6dic, no harm has arisen in 

 France from this cause, for, unless the redness has reached an advanced 

 stage, it may be scraped from the surface, and what remains of the fish 

 is uninjured. It may be remarked that the fish found at Dieppe had 



