Syringolaimus, De Man, 1888

Lima, Rita De Cássia Coelho, Lins, Lidia, Silva, Maria Cristina Da & Esteves, André Morgado, 2009, Four new species of Syringolaimus De Man, 1888 (Nematoda: Ironidae) from the Southeast Atlantic (Brazil), with redefinition of valid species and the proposal of a new key *, Zootaxa 2096, pp. 119-136 : 134-135

Key to species of Syringolaimus

1 Tail end filiform ............................................................................................................................................................ 2

- Tail end not filiform.................................................................................................................................................... 10

2 Spicules narrow....................................................................................................................................... S. filicaudatus

- Spicules wide ................................................................................................................................................................ 3

3 Tail with setae .................................................................................................................................................. S. ingens

- Tail without setae .......................................................................................................................................................... 4

4 Odontia divided............................................................................................................................................................. 5

- Odontia entire ................................................................................................................................... S. striatocaudatus

5 Labial sensilla absent .................................................................................................................................. S. marisalbi

- Labial sensilla present................................................................................................................................................... 6

6 Cephalic sensilla absent ......................................................................................................................... S. taniae sp. n.

- Cephalic sensilla present............................................................................................................................................... 7

7 Cephalic sensilla setaceous........................................................................................................................ S. renaudae

- Cephalic sensilla papilla shaped ................................................................................................................................... 8

8 Cuticule striations difficult to resolve..................................................................................................... S. annae sp. n.

- Cuticule striations well defined along the body............................................................................................................ 9

9 Tail long “c” <6, without spinneret............................................................................................................ S. gladiatus - Tail short “c”> 6, with spinneret.................................................................................................................... S. nitidus

10 Labial sensilla absent ................................................................................................................................ S. smarigdus

- Labial sensilla present................................................................................................................................................. 11

11 Cephalic sensilla absent ....................................................................................................................... S. magdae sp. n.

- Cephalic sensilla present............................................................................................................................................. 12

12 Tail conical.......................................................................................................................................................... S. loofi

- Tail conical-cylindrical ............................................................................................................................................... 13

13 Tail without setae .................................................................................................................................. S. smolae sp. n.

- Tail with setae .............................................................................................................................................. S. venustus