Table 7. —Results of the Toxicological Examinations of Muscle am3 



gonad extracts 



Species 



Number 

 of Fish 



Examined 



Sex 



Reaction of mice to intraperitoneal 

 injection 



Muscle Extract Gonad Extract 



Caranx bartholomae i 5 



"do 5 



do I 



DO I 



DO 4 



DO 10 



DO I 



DO 8 

 DO 



SCOMBEROMORUS REGAL IS I 



DO I 



Sphyraena barracuda I 



DO ~ I 



Caranx crysqs 2 



lachnolaimus maximus i 



Seriola falcata I 



OCVURUS CHRYSURUS I 



Caranx Latus I 



F 

 F 

 F 

 F 

 F 

 M 

 M 

 M 



9 



F 



M 



F 

 <> 



M 

 ? 

 ? 

 ? 

 ? 



T 







+ 









 





 4= 

 

 

 

 



4 





 

 





 



3/ 



±1 



41/ 

 4 2/ 

 

 





 

 

 4- 



legend: -f-, reaction; 0, no reaction; -, no sample, 



\j one series of 3 mice was killed by raw gonad extract in 6± hours, heated extract 



(5 hour at 60° co) elicited no reaction, raw gonad tissue elicited no 



reaction on feeding. 

 2/ one series of 3 mice was killed by raw gonad extract in 10 hours. heated 



extract (£ hour at 80° c.) elicited no reaction. raw gonad tissue elicited 



no reaction on feeding. 

 3/ One series of 3 mice died from raw muscle extract in 5 hours. Heated extract 



(5 hour at 80 c.) elicited slight reaction. animals fully recovered in 18 



hours. Raw tissue fed elicited no reaction. 

 4/ One series of 3 mice died in 8i hours from raw muscle extract. One mouse 



RECEIVING I ML OF HEATED EXTRACT DIED IN 14 HOURS. TWO MICE RECEIVING 0,5 ML 

 OF THE SAME EXTRACT SHOWED MARKED REACTION BUT RECOVERED. RAW TISSUE 

 ELICITED NO REACTION ON FEEDING. 



Case Re port and Results of Bacteriological and Toxicological Study 

 of an Outbreak of Barracuda Poisoning in St. Thomas jj V, I. 



In the course of the investigation at St, Thomas, one case of 

 barracuda fish poisoning was observed^ The data regarding the outbreak and 

 the bacteriological results are described as follows % 



The outbreak was brought to the attention of the laboratory by Dr<> 

 D. Ho Snyder of the Municipal Hospital, Charlotte Amalie, St, Thomas, V. I . , 

 who diagnosed it as a case of fish poisoning <, The fish, a great barracuda , 

 approximately ha feet long, had been caught in the harbor of St. Thomas near 

 the submarine base in the late afternoon of August 6, 19^5° The fish was 

 gutted immediately after it was caught. The flesh was knife-scored (diagonal 

 incision made approximately 1 inch apart on both sides of the fish) and then 

 sun-dried. A portion of this fish was given to some friends % however, these 

 individuals could not be located to determine whether or not they had been 



17 



