354 PENTASTOMID^ 



Ascaris mystax, Zeder. Stomach-worm of Cat 

 Has been noted in several parts of New Zealand, and is probably 

 not uncommon. It is found inhabiting the stomach and small intes- 

 tines of the cat. The form of this worm found in the dog, and which 

 Colonel Reid states occurs among these animals in New Zealand, 

 has been recorded as A. marginata, Rud., but it is not specifically 

 distinct. 



Heterakis papulosa, Bloeh. White Intestinal Worm of Fowls 

 This parasite is found among domestic fowls in New Zealand, 

 especially where they are crowded together. It occurs chiefly in the 

 caecum. 



Heterakis perspicillum, Rudolphi 



Colonel Reid informs me that this worm also occurs among fowls 

 in which it chiefly infests the small intestine. 



Family Oxyurid^ 



Oxyuris curvula, Rud. Whip worm; Maw- worm 



This worm occurs in the large intestines of the horse. It is com- 

 mon in New Zealand, and Dr Reakes states must have been in the 

 country for a long time. 



Family Strongylid^ 



Sclerostomum equinum, Miiller (Sclerostomum armatum, Dujardin; 

 Strongylus armatus, Rud.). Palisade Worm 

 Dr Reakes informs me that he first met with this species on the 

 lowlands about Kaiapoi, but that it was no doubt in New Zealand 

 at an early date. It is fortunately not very common at present. It is 

 the most dangerous worm which infests horses. The parasite is able 

 to bore its way from the intestines into the blood stream, causing 

 aneurisms of the larger arteries, especially the anterior mesenteric. 



Sclerostomum tetracanthum, Dies. {Strongylus tetracanthus, Mehlis). 

 Round Worm of the Horse 

 In the report of the Agricultural Department for 1900 this 

 parasite is recorded as occurring among horses on the west coast of 

 the South Island. 



Sclerostomum hypostomum, Dujardin 

 Dr Reakes informs me that this parasite occurs among sheep in 

 New Zealand, but that it is not common. It is found in the small 

 intestines of sheep, and often causes haemorrhages through punc- 

 turing the mucous membrane. 



