Nannolaimoides Ott, 1972

Chu, Mengdi, Hao, Yingdong & Huang, Mian, 2023, Two new species of Chromadorida (Nematoda) from the intertidal zone of the Yellow Sea, China, Journal of Natural History 57 (25 - 28), pp. 1364-1376 : 1370

Genus Nannolaimoides Ott, 1972

( Figures 3 , 4 and Table 2 )

Diagnosis (modified after Platt and Warwick 1988; Tchesunov 2014)

Punctate cuticle with lateral differentiation of irregular large dots. Buccal cavity cup-shaped with small dorsal tooth and weakly developed subventral projections. Spicules slightly S-shaped without central lamella. Gubernaculum with lateral flanges without denticles. Precloacal supplements papilliform, cup-shaped or button-shaped, cuticle usually strongly annulated between precloacal supplements.

Figures

Figure 3. Nannolaimoides brevicaudatus sp. nov. (a) Entire male; (b) anterior part of male, showing buccal cavity, amphid, cuticle punctations and pores; (c) posterior portion of male, showing tail, spicule, gubernaculum and precloacal supplements; (d) spicule and gubernaculum; (e) entire female; (f) female tail. Scale bars: a, e = 50 μm; b = 10 μm; c, d, f = 20 μm.

Figure 4. Nannolaimoides brevicaudatus sp. nov. (a) anterior part of male, showing outer labial and cephalic setae, buccal cavity and tooth; (b) anterior part of male, showing amphid, cuticle punctations and pores; (c) posterior portion of male, showing spicule and tail; (d) posterior portion of male, showing spicule, gubernaculum and precloacal supplements. Scale bars: a, b = 10 µm; c, d = 20 μm.