Promonhystera fluctispicula, Huang & Xu, 2024

Huang, Mian & Xu, Kuidong, 2024, Two new species of Promonhystera Wieser, 1956 (Nematoda: Monhysterida: Xyalidae) from the South China Sea, Zootaxa 5399 (2), pp. 130-140 : 135

Promonhystera fluctispicula sp. nov.

( Figures 3–4 , Table 1 )

Type material. Holotype: one male on slide Yelin Bay 01–1 . Paratypes: two males on slide Yelin Bay 02–2 .

Type locality and habitat. Holotype located in intertidal zone of Yelin Bay , Hainan Province (19°36′26″N 110°55′38″E), muddy sediment and 0–2 cm section in the corer . Paratypes were all located in 2–5 cm section in the corer.

Etymology. The Latin adjective fluctus refers to a distinct feature of the species: the double-curved spicules.

Figures

FIGURE 3. Drawings of Promonhystera fluctispicula sp. nov. male holotype (A, C, D) and male paratype (B). A. lateral view of anterior portion, showing the two circles of anterior setae, rounded amphideal fovea and buccal cavity; B. entire view of male; C. lateral view of posterior portion, showing spicules, gubernaculum, tail and caudal setae; D. high magnification drawing of spicules and gubernaculum.

FIGURE 4. Photos of Promonhystera fluctispicula sp. nov. male holotype (A, D), male paratype (B, C). A. sublateral view of anterior end, showing rounded amphideal fovea (arrow); B. lateral view of anterior end, showing funnel-shaped buccal cavity, cephalic and outer labial setae; C. lateral view of anterior end, showing inner labial setae (arrow); D. lateral view of cloacal region, showing waved spicules (arrow). Scale bars: A–D: 20 µm.