Binema Travassos, 1925

Shah, Manjur, 2011, Nematode parasites of invertebrates from Manipur, North East India (Diagnosis, keys and illustration), Zootaxa 3107, pp. 1-37 : 30

Key to all known species of Binema Travassos, 1925

1. Female tail with flagellate caudal appendage................................................................ 2

- Female tail without flagellate caudal appendage............................................................. 3

2(1). Female length = 2.423–3.273 mm, presence of a sub-ganglion at the middle of isthmus... B. anulinervus Shah & Rizvi, 2004

- Female length = 6.98 mm, absence of a sub-ganglion at the middle of the isthmus..... B. pseudornatum Leibersperger, 1960

3(1). Buccal cavity present.................................................................................. 4

- Buccal cavity absent................................................... B. korsakowi ( Sergiev, 1923) Basir, 1956

4(3). Lateral alae in male present.............................................................................. 5

- Lateral alae in male absent.............................................................................. 6

5(4). Annulation prominent only in cervical region and female tail = 0.068–0.088mm ........ B. mirzaia (Basir, 1942) Basir, 1956

- Annulation absent in cervical region and female tail = 0.2–0.21 mm ................. B. parva Parveen & Jairajpuri, 1985

6(4). Male with five pairs of caudal papillae, buccal cavity with ornamentation......................................... 7

- Male with eight pairs of caudal papillae, buccal cavity without ornamentation.......... B. striatum Rizvi & Jairajpuri, 2000

7(6). Female buccal cavity with three sclerotized arches; male tail conical............ B. bonaerensis Camino & Reboredo, 1999

- Female buccal cavity with projection; male tail forms a caudal spike......................... B. ornata Travassos, 1925