en Host-pathogen interactions and susceptibility factors Host-pathogen interactions and susceptibility factors Original article Original article <strong>Introduction: </strong>Bats are natural reservoir hosts of several zoonotic infections. Few studies have demonstrated gut helminth community parasite in bats. In the present study, we investigated two intestinal helminths of two bat species, <em>Rhinopoma muscatellum, </em>and <em>Rhinopoma</em> <em>microphyllum,</em> from Hormozgan province, southern Iran. <strong>Methods:</strong> We received digestive tracts of 56 <em>Rhinopoma</em> bats previously captured by several biologists. The specimens were precisely dissected and examined for the parasitic helminths. The collected helminths were cleared in the lactophenol and identified using reliable morphological and morphometrical key references. <strong>Result:</strong> In this study, 44 <em>R. muscatellum</em> and 6 <em>R. microphyllum</em> species were examined, among which 15 (26.7%) had infections with parasitic worms. <em>Lecithodendrium</em> sp. and <em>Castoria</em> sp. were identified in the digestive tract of eight and four individually examined <em>R. muscatellum</em> bats, respectively. Also, in three <em>R. microphyllum</em> bats, a few spirurid nematodes with incomplete structures were detected<em>.</em> <strong>Conclusion<span dir="RTL">:</span></strong> We, for the first time, identified <em>Lecithodendrium</em> sp., <em>Castoria </em>sp., in <em>R. muscatellum </em>from south of Iran. Due to the insectivorous biological trait of bats, the most abundant helminth was <em>Lecithodendrium</em> sp. Further study with more samples is needed to describe the helminths fauna of microbats in Iran taxonomically. Chiroptera, Rhinopoma bats, Gastrointestinal helminths, Iran 118 114 http://jommid.pasteur.ac.ir/browse.php?a_code=A-10-263-2&slc_lang=en&sid=1 Elham Kazemirad ekazemirad@yahoo.com 0000-0001-8634-5584 No Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Alireza Latifi arlatifi@yahoo.com 0000-0002-7118-1756 No Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Iraj Mobedi mobediiraj@tums.ac.ir 0000-0003-2715-0909 No Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Vahid Akmali v_akmali@razi.ac.ir 0000-0001-8946-3527 No Department of Biology, Faculty of Science, Razi University, Kermanshah, Iran Hamed Mirjalali hamed_mirjalali@hotmail.com 0000-0002-2568-9022 No Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran Gholamreza Mowlavi molaviva@tums.ac.ir 0000-0002-3539-7058 Yes Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran