Cosmocercoides
Creators: name: Rizvi, Anjum Nasreen
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Nematoda
Chromadorea
Ascaridida
Cosmocercidae
Cosmocercoides

description: Key to the species of Cosmocercoides   
 Key to the 18 species of Cosmocercoides is being provided for the first time.   
1 Lateral alae present....................................................................................................................................................... 2  
- Lateral alae absent...................................................................................................................................................... 13  
2 Somatic papillae present............................................................................................................................................... 3  
- Somatic papillae absent............................................................................................................................................... 7  
3 Esophagus with 1 or 2 prebulbar swelling.................................................................................................................... 4  
- Esophagus lacking prebulbar swelling......................................................................................................................... 5  
 4 Esophagus with one prebulbar swelling............................................................................................. C. multipapillata   
 - Esophagus with two prebulbar swelling............................................................................................... C.nainitalensis   
 5 Male with median papillae.............................................................................................................................. C.tridens   
- Male lacking median papillae....................................................................................................................................... 6  
 6 Male with both rosette and simple papillae..................................................................................................... C.rickae   
 - Male lacking simple papillae........................................................................................................................ C.kumaoni   
7 Male with 2 equal spicules............................................................................................................................................ 8  
 - Male with unequal spicules..................................................................................................................... C.barodensis   
 8 Male less than 2 mm in length................................................................................................................. C.lanceolatus   
- Male more than 2 mm in length................................................................................................................................... 9  
 9 Median papilla present............................................................................................................................... C.variabilis   
- Median papilla absent................................................................................................................................................. 10  
10 Gubernaculum present................................................................................................................................................ 11  
 - Gubernaculum absent............................................................................................................................... C.microhylae   
 11 Esophagus with prebulbar swelling................................................................................................................ C.bufonis   
 - Esophagus without prebulbar swelling…………………………………….............................................................. 12   
 12 Gubernaculum less than 50um................................................................................................................. C.oligodentis   
 - Gubernaculum more than 50 um...................................................................................................................... C. ranae   
 13 Male with somatic papillae................................................................................................... C.karnatakaensis sp.nov.   
- Male lacking somatic papillae.................................................................................................................................... 14  
14 Male with both rosette and simple papillae................................................................................................................ 15  
- Male lacking simple papillae...................................................................................................................................... 17  
15 Male with gubernaculum............................................................................................................................................ 16  
 - Male lacking gubernaculum ................................................................................................................................. C.lilloi   
 16 Male with many simple preanal papillae ........................................................................................................ C.pulcher   
 - Male lacking simple preanal papillae ......................................................................................................... C.tibetanum   
 17 Male with equal spicules .................................................................................................................................... C.dukae   
 - Male with unequal spicules ............................................................................................................................. C.fotedari
description: Published as part of Rizvi, Anjum Nasreen, 2009, Two new species of amphibian nematodes from Bhadra Wildlife Sanctuary, Western Ghats, India., pp. 58-68 in Zootaxa 2013 on pages 63-64, DOI: 10.5281/zenodo.185867