Condyloderes kurilensis Adrianov & Maiorova, 2016

Neuhaus, Birger, Zotto, Matteo Dal, Yamasaki, Hiroshi & Higgins, Robert P., 2019, Revision of Condyloderes (Kinorhyncha, Cyclorhagida) including description of Condyloderes shirleyi sp. nov., Zootaxa 4561 (1), pp. 1-91 : 14

Re-description of Condyloderes kurilensis Adrianov & Maiorova, 2016

( Figs 4–7 ; Tables 1, 2, 7)

Condyloderes kurilensis Adrianov & Maiorova, 2016 : pp. 13–18, figs 1–4, table 1.

Condyloderes kurilensis — Zeppilli et al. 2018: p. 56.

Diagnosis. Neck placids with condyles in two rows in narrower placids and 2–3 rows in broader placids; each narrower placid with one apical and one basal condyle; primary pectinate fringe of all segments reduced, free flap with numerous short spinose or broad extensions on most parts of a segment; acicular spine middorsally on segments 1–9 (and on segment 10 in male only), midterminally on segment 11, laterodorsally on segment 10 (in male only), and lateroventrally on segments 1–9; cuspidate spine ventrolaterally on segment 5 and lateral accessorily on segment 8; type-6 sensory spot ventromedially on segments 1 (slightly more paraventrally), 2, 4, 6, 8 and 9, lateroventrally on segment 10, sublaterally on segments 3, 5–7 and 9, midlaterally on segments 1 and 2, laterodorsally on segments 2, 3 and 7–9, and paradorsally on segments 1 (almost subdorsally), 4–6, 8 and 9; ventromedial appendage on segments 7 and 8 and area of micropapillae ventromedially on segment 9 in female only.

Material examined. Holotypic male (MIMB 32339) and paratypic female (MIMB 32340) mounted for light microscopy ( Fig. 1 ; Table 1).

Figures

FIGURE 1. Map of locations of all known species of Condyloderes identified to species level; see Table 1 for location data. Filled symbols indicate specimens studied in this article, open symbols refer to specimens not investigated here.

FIGURE 4. Condyloderes kurilensis. A, B. Habitus of holotypic male (MIMB 32339) in dorsal (A) and ventral (B) view. Sublateral sensory spot on segment 1 indicated by dotted lines not observed in holotype but very likely based on documentation of spot in non-type male in original publication (Adrianov & Maiorova 2016). Cuspidate spines highlighted by grey colour. Scale bar 100 µm, valid for A and B. Abbreviations: ac, acicular spine; cu, cuspidate spine; ld10, laterodorsal spine of segment 10; ltas, lateral terminal accessory spine; md2, middorsal spines of segment 2; mts, midterminal spine; ne, protonephridial openings; ssp3, type-3 sensory spot.

FIGURE 5. Condyloderes kurilensis. A, B. Habitus of paratypic female (MIMB 32340) in ventral (A) and dorsal (B) view. Sublateral sensory spot on segments 1 and 3 indicated by dotted lines not observed in paratype but very likely based on documentation of spot in non-type male in original publication (Adrianov & Maiorova 2016; see also text). Cuspidate spines highlighted by grey colour. Scale bar 100 µm, valid for A and B. Abbreviations: ac, acicular spine; amp, female-specific area of micropapillae; ap, female-specific appendage; cu, cuspidate spine; gp, gonopore; ltas, lateral terminal accessory spine; md6, middorsal spines of segment 6; mts, midterminal spine; ssp3, type-3 sensory spot.

FIGURE 6. Condyloderes kurilensis, holotypic male (MIMB 32339) in ventral (A–C) and dorsal view (D–F), DIC. A. Segments 1–3; arrows point to reduced free flap. B. Segments 4–6. C. Segments 7 and 8. D. Segments 1–3. E. Segments 4–6. F. Segments 7 and 8. White arrowheads in A–F mark type-6 sensory spots. Notice fused and reduced pectinate fringe of free flap with irregular outline on all segments. Scale bar in F 50 µm, valid for A–F. Abbreviations: cu, cuspidate spine; dv, attachment area of dorsoventral muscle; ff, free flap; lv2, lateroventral spine of segment 2; s2, segment 2; sf, secondary fringe.

FIGURE 7. Condyloderes kurilensis, holotypic male (MIMB 32339) in ventral (A, B) and dorsal view (C, D) and paratypic female (MIMB 32340) in ventral view (E), DIC. A. Segments 9 and 10. B. Segments 10 and 11. C. Segments 9 and 10. D. Segments 10 and 11. E. Segments 7–11. White arrowheads in A–E mark type-6 sensory spots. Notice fused and reduced pectinate fringe of free flap with irregular outline on all segments. Scale bar in D 50 µm, valid for A–D. Scale bar in E 100 µm. Abbreviations: amp, female-specific area of micropapillae of female; ap, female-specific appendage; dv, attachment area of dorsoventral muscle; ff, free flap; ld10, laterodorsal spine of segment 10; ltas, lateral terminal accessory spine; lv9, lateroventral spine of segment 9; ne, protonephridial openings; s7, segment 7; ssp3, type-3 sensory spot.