Merlinius brevidens ( Allen, 1955 ) Siddiqi 1970

Bharti, Lovely, Bhat, Aashaq Hussain, Chaubey, Ashok Kumar & Abolafia, Joaquín, 2020, Morphological and molecular characterisation of Merlinius brevidens (Allen, 1955) Siddiqi, 1970 (Nematoda: Rhabditida: Merlinidae) from India, Journal of Natural History 54 (23 - 24), pp. 1477-1498 : 1485

Merlinius brevidens ( Allen, 1955) Siddiqi 1970

= Tylenchorhynchus brevidens Allen, 1955 = Geocenamus brevidens ( Allen, 1955) Brzeski 1991

( Figures 1–4 )

Material examined

Ten females and 10 males.

Measurements: See Table 1.

Figures

Figure 1. Merlinius brevidens (isolate P36) (Allen 1955) Siddiqi 1970 (line drawing). (a) Neck; (b) anterior end; (c) entire female; (d) entire male; (e) posterior branch of the female reproductive system; (f) female posterior end; (g) lateral field; (h) male posterior end.

Figure 2. Merlinius brevidens (isolate P36) (Allen 1955) Siddiqi 1970 (light microscopy). (a) Neck (white arrow pointing to the deirid and black arrow pointing to the hemizonid); (b) anterior end; (c) posterior branch of the female reproductive system (black arrow pointing at the vulva, white arrow pointing at the spermetheca); (d) female posterior end (black arrow pointing to the anus, white arrow pointing to the phasmid); (e) lateral field; (f) testis; (g) male posterior end (white arrow pointing to the phasmid, black arrow pointing to the genital papilla); (h) cloacal hypoptygma (arrow); (i) vulval epiptygma (arrow).

Figure 3. Merlinius brevidens (isolate P36) (Allen 1955) Siddiqi 1970 (scanning electron microscopy). (a–c) Lip region in sublateral, ventral and frontal views, respectively (arrows pointing to the amphids); (d) lateral field; (e) excretory pore (arrow); (f) vulva (arrow pointing to the vulval epiptygma); (g, i) female posterior end (arrows pointing to the phasmid); (h, j) male posterior end (white arrows pointing to the phasmids, black arrows pointing to the genital papillae); (k) female anus (arrow); (l) female phasmid (arrow); (m) male phasmid (arrow); (n) male cloacal opening (arrow pointing to the cloacal hypoptygma).

Figure 4. Three-dimensional scheme of the lip region pattern of Merlinius brevidens (isolate P36) (Allen 1955) Siddiqi 1970 based on scanning eletron microscopy observations.