Tokorhabditis tauri, Ragsdale & Kanzaki & Yamashita & Shinya, 2022

Ragsdale, Erik J., Kanzaki, Natsumi, Yamashita, Tatsuya & Shinya, Ryoji, 2022, Tokorhabditis tauri n. sp. and T. atripennis n. sp. (Rhabditida: Rhabditidae), isolated from Onthophagus dung beetles (Coleoptera: Scarabaeidae) from the Eastern USA and Japan, Journal of Nematology 54 (1), pp. 1-21 : 4-5

Tokorhabditis tauri * n. sp. = Tokorhabditis sp. EJR13 apud Kanzaki et al. (2021).

( Figs. 1–8 )

JOURNAL OF NEMATOLOGY

Figures

Figure 1: Mature male, hermaphrodite, and dauer juvenile of TOKOrhabditiS taUri n. sp. (A) Male. (B) Mature hermaphrodite. (C) Dauer juvenile.

Figure 2: Hermaphrodite and male of TOKOrhabditiS taUri n. sp. All drawings are in right lateral view. (A) Surface of lip region of hermaphrodite. (B) Stomatal region of hermaphrodite. (C) Anterior part of hermaphrodite. (D) Anterior gonad of mature hermaphrodite. (E) Vulval region of young hermaphrodite. (F) Tail region of hermaphrodite. (G) Male tail region. (H) Spicule and gubernaculum.

Figure 3: Dauer juvenile of TOKOrhabditiS taUri n. sp. All drawings are in left lateral view. (A) Anterior region. (B) Surface of lip region. (C) Genital anlagen. (D) Tail region.

Figure 4: Differential interference contrast micrographs of the hermaphrodite and female of TOKOrhabditiS taUri n. sp. All imaged individuals are of hermaphrodite except for (D), showing female. (A) Lip and stomatal region in left lateral view in five focal planes. (B) Posterior pharynx region in left lateral view in three focal planes. (C) Entire gonad of mature hermaphrodite in right lateral view. (D) Gonadal region of overmature female in right lateral view. (E), (F). Vulval region of young hermaphrodite in right lateral (E) and ventral (F) views. (G). Anal region in left lateral view in two focal planes. a, anus; am, amphid; bb, basal bulb; cs, cephalic sensilla; dr, deirid; d, dorsal denticles; ep, excretory pore; ls, labial sensilla; lsv, left subventral denticles; mb, median bulb; nr, nerve ring; ph, phasmid; rsv, right subventral denticles.

Figure 5: Differential interference contrast micrographs of the adult male of TOKOrhabditiS taUri n. sp. All images are in right lateral view. (A) Lip to anterior pharynx region in five focal planes. (B) Posterior pharynx region in three focal planes. (C) Entire gonad in two focal planes. (D) Tail region in six focal planes. Genital papillae are labeled with the prefix “P”; suffix “d” indicates papillae that open dorsally or laterally. am, amphid; bb, basal bulb; cs, cephalic sensilla; d, dorsal denticles; dr, deirid; ep, excretory pore; ls, labial sensilla; nr, nerve ring; tr, testis reflection; vd, VaS deferenS; vh, ventral precloacal hook.

Figure 6: Differential interference contrast micrographs of the dauer juvenile of TOKOrhabditiS taUri n. sp. All images are in left lateral view. (A) Lip and stomatal region in three focal planes. (B) Surface structure of mid-body. Parallel lines mark lateral lines. (C) Middle to posterior part of pharynx. (D) Genital anlage. (E) Tail region. a, anus; am, amphid; bb, basal bulb; ga, genital anlage; ep, excretory pore; mb, median bulb; s, sheath; tt, tail tip.

Figure 7: Scanning electron micrograph of the labial region of a female of TOKOrhabditiS taUri n. sp. am, amphid; ld, left dorsal labial sensillum; ldc, left dorsal cephalic sensillum; ll, left lateral labial sensillum; lsv, left subventral labial sensillum; lsvc, left subventral cephalic sensillum; rd, right dorsal labial sensillum; rdc, right dorsal cephalic sensillum; rsv, right subventral labial sensillum.

Figure 8: Scanning electron micrograph of the male tail of TOKOrhabditiS taUri n. sp. Genital papillae are labeled with the prefix “P”; suffix “d” indicates papillae that open dorsally or laterally.