Mammomonogamus auris

Mammomonogamus auris

<p align="CENTER"><span style="font-size: medium;"><i><b>Mammomonogamus</b></i></span><span style="font-size: medium;"><i><b>auris</b></i></span><span style="font-size: medium;"><b> (Faust &amp; Tang, 1934) Ryzhikov, 1948</b></span></p> <p align="JUSTIFY"><span style="font-size: medium;"><b>ETYMOLOGY:</b></span><span style="font-size: medium;"><i>Mammo</i></span><span style="font-size: medium;"> (=mammal) and </span><span style="font-size: medium;"><i>monogamus</i></span><span style="font-size: medium;"> (for the finding of the worms in pairs of males and females); plus </span><span style="font-size: medium;"><i>auris</i></span><span style="font-size: medium;"> for ear.</span></p> <p align="JUSTIFY"><span style="font-size: medium;"><b>SYNONYMS:</b></span><span style="font-size: medium;"><i>Syngamus</i></span><span style="font-size: medium;"><i>auris</i></span><span style="font-size: medium;"> Faust &amp; Tang, 1934</span></p> <p align="JUSTIFY"><span style="font-size: medium;"><b>HISTORY:</b></span><span style="font-size: medium;"> These worms were recovered from the middle ear of 11 of 48 cats during 1932 and the spring and fall of 1933. There have been no reports of this worm being recovered since the report of Faust and Tang in 1934.</span></p> <p align="JUSTIFY"><span style="font-size: medium;"><b>GEOGRAPHIC LOCATION:</b></span><span style="font-size: medium;"> Foochow, Fukien Province, China.</span></p> <p align="JUSTIFY"><span style="font-size: medium;"><b>LOCATION IN HOST:</b></span><span style="font-size: medium;"> Middle ear of the cat. All other species of Mammonogamus appear to be located within the trachea and larynx; thus, the location within the middle ear is surprizing.</span></p> <p align="JUSTIFY"><span style="font-size: medium;"><b>PARASITE IDENTIFICATION:</b></span><span style="font-size: medium;"> The males are orange red, 3.3 to 8.1 mm long, with delicate, subequal spicules. The females are blood red, 14 to 30 mm long; the vulva is 43% to 46% gbbeghind the anterior of the worm.. The adults are found consistently with the bursa of the male surrounding the vulva of the female; giving the worms a “Y-shaped” appearance. The eggs are 48 µm by 88 µm, with a thick, transparent sculptured shell that is in the 4 to 8 celled morula stage when laid. </span></p> <p align="JUSTIFY"><span style="font-size: medium;"><b>LIFE CYCLE: </b></span><span style="font-size: medium;">Very little is known about the biology of these parasites. The eggs apparently pass down the eustachian tubes into the pharynx, are swallowed, and pass out in the feces. </span></p> <p align="JUSTIFY"><span style="font-size: medium;"><b>CLINICAL PRESENTATION AND PATHOGENESIS: </b></span><span style="font-size: medium;">These parasites were not found attached to the wall of the middle ear; however, the mucosa was hemorrhagic. The typanic membranse of the cats were not injured.</span></p> <p align="JUSTIFY"><span style="font-size: medium;"><b>TREATMENT: </b></span><span style="font-size: medium;">Not known.</span></p> <p align="JUSTIFY"><span style="font-size: medium;"><b>EPIZOOTIOLOGY:</b></span><span style="font-size: medium;"> Not known.</span></p> <p align="JUSTIFY"><span style="font-size: medium;"><b>HAZARDS TO OTHER ANIMALS:</b></span><span style="font-size: medium;"> Not known.</span></p> <p align="JUSTIFY"><span style="font-size: medium;"><b>HAZARD TO HUMANS: </b></span><span style="font-size: medium;">Not known.</span></p> <p align="JUSTIFY"><span style="font-size: medium;"><b>CONTROL/PREVENTION:</b></span><span style="font-size: medium;"> Not known.</span></p> <p align="JUSTIFY"><span style="font-size: medium;"><b>REFERENCES:</b></span></p> <p align="JUSTIFY"><span style="font-size: medium;">Buckley JJC. 1934. On </span><span style="font-size: medium;"><i>Syngamus</i></span><span style="font-size: medium;"><i>ierei</i></span><span style="font-size: medium;"> sp. nov. from domestic cats with some observations on its life-cycle. J Helminthol 12:89-98.</span></p> <p align="JUSTIFY"><span style="font-size: medium;">Faust ECF, Tang Cc. 1934. A new species of </span><span style="font-size: medium;"><i>Syngamus</i></span><span style="font-size: medium;"> (</span><span style="font-size: medium;"><i>S. auris</i></span><span style="font-size: medium;">) from the middle ear of the cat in Foochow, China. Parasitology 26:455-459.</span></p> <p align="JUSTIFY"><span style="font-size: medium;">Ryzhikov KM. 1948. Phylogenetic relationships of nematodes of the family Syngamidae and an attempt to reconstruct their systematics. Dokl Acad Nauk SSSR 62:733-736./</span></p> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;