Crustacea Flashcards

Sea Lice - Copyright Joseph G. Kunkel at The Kunkel Fish & Aquatic Invert Site

Question	Answer		Article
By which other name is Linguatula serrata known and why?	The tongue worm Is shaped like a tongue with an expanded anterior and transverse striations		Link to Article
Summarise the life cycle of Linguatula serrata.	Adults inhabit the nasal passages of dogs (and sometimes cats) Eggs are sneezed out or passed with the faeces and are swallowed by herbivores Eggs hatch in the herbivore intestine and migrate to the mesenteric lymph nodes Larvae encyst to become infective nymphs When dogs eat uncooked viscera the nymphs crawl up the nasal cavity via the soft palate		Link to Article
What are the two species of sea lice of veterinary importance?	Lepeophtheirus Caligus		Link to Article
What do heavy infections of sea lice lead to?	Epidermal abrasion Haemorrhage Immunosuppression Decreased productivity Death		Link to Article