58 THE AGRICULTURAL PESTS OF INDIA. 



and the spine at the side of the tail in the lancet fish 

 Acanthurus, give more a flesh than a punctured wound. 

 With wounds from simple spines, the symptoms seem to- 

 be mostly due to the state of health of the recipient- 

 Species of Polyacanthus inflict punctured wounds with 

 the spinous rays of their dorsal fins. 



Species of Tetrodon have the power of inflating the 

 abdomen, and in this state, when taken or handled, they 

 emit a grating sound. They are also remarkable for 

 tenacity of life, which they are capable of sustaining for 

 several hours after having been taken out of their 

 element. They have a peculiar, disagreeable, odour, 

 resembling that of the Gobioidiie, which continues for 

 several years in specimens preserved in spirits of wine. 

 Some species of Tetrodon are undoubtedly poisonous, and 

 one species is used in Japan for committing suicide. In 

 the Malayan countries they are considered poisonous, and 

 are even objected to as manure. 



Teuthis, Linn. All the species of this genus are 

 edible, though supposed by the Malays of the Straits to 

 be highly poisonous. They are not eaten by them, but 

 set aside among offal of fish to be used as manure. 

 Cuvier and Valenciennes; F. D.; M. T. 



Flea. See Pulex. 



Flies. May - flies are species of the Ephemeridse. 

 Dragon-flies belong to the Libellulidse. The larvae of 

 certain flies often torment the human species. 



The flesh-fly is the Sarcophaga carnaria, Meig., Musca 

 carnaria, Linn. Its body is of a golden-yellow anteriorly, 

 and covered with long, stout, black hairs. The blue-fly 

 or meat-fly is the Calliphora vomitoria, Rob. Desv., Musca 

 vomitoria, Linn., M. chrysocephala, De Geer; it makes a 

 loud buzzing noise. The golden-fly is the Lucilia Csesar, 



