ergasilidjE. 323 



of much motion, and are more adapted than any of the others 

 we have yet described for living strictly as parasites. They 

 seem to bury their beak in the flesh of their prey, and no 

 doubt cause much irritation to their unwilling host. The 

 gill-covers to which they were found adhering, showed the 

 marks of inflammation of long standing, as they were much 

 thickened."* 



Anthosoma Smithii, Leach. Bad-like S7iar7c-sncJ:er. 

 (Plate XIX. fig. 5.) — Of an elongated- oval form, and of a 

 yellowish-white colour, with a black spot on the middle of 

 the head, disappearing after death. 



Found sticking on a shark (Lamna Comubica) thrown 

 ashore at Exmouth. Dr. Leach gave this the generic name 

 from the creature having some resemblance to the half-opened 

 bud of a flower. 



Fam. ERGASILIDJE. 



Head of moderate size, rounded. Body oval or pyriform; 

 the thorax sometimes much enlarged laterally. Feet very 

 small and branched ; abdomen well developed. 



* British Entomostraca, p. 298. 



