Condyloderes multispinosus (Neuhaus & Zotto & Yamasaki & Higgins, 1969)

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 : 21

Re-description of Condyloderes multispinosus based on type material

( Figs 8–10 ; Tables 1–3, 7)

Diagnosis. Neck placids with condyles in one row in narrower placids and three rows in broader placids; each narrower placid with one basal condyle; each broader placid with two condyles both in apical, intermediate, and basal row; midventral placid with three apical and basal condyles and two in intermediate row; acicular spine middorsally on segments 1–10, midterminally on segment 11, lateroventrally on segments 1–9, and laterodorsally on segment 10; cuspidate spine ventrolaterally on segments 2, 5 and 9 and lateral accessorily on segment 8; type-6 sensory spot ventromedially on segments 1 (slightly more paraventrally), 2–4 and 6–9, lateroventrally on segment 10, sublaterally on segments 1–3 and 5–9, midlaterally on segments 1 and 2, laterodorsally on segments 1–9, subdorsally on segment 10, and paradorsally on segments 1 (almost subdorsally), 2 and 49; gland cell outlet ventromedially on segment 10.

Material examined. Holotypic male (ZOO 1962.82, previously identified as adult by McIntyre (1962) and Higgins (1969)) 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 8. Condyloderes multispinosus. A, B. Habitus of holotypic male (ZOO 1961.82) in ventral (A) and dorsal (B) view. Cuspidate spines highlighted by grey colour. Scale bar 100 µm, valid for A and B. Abbreviations: ac, acicular spine; cu, cuspidate spine; gc, gland cell outlet; ld10, laterodorsal spine of segment 10; ltas, lateral terminal accessory spine; md4, middorsal spine of segment 4; mts, midterminal spine; ne, protonephridial openings; ssp3, type-3 sensory spot.

FIGURE 9. Condyloderes multispinosus, holotypic male (ZOO 1961.82) in ventral (A–G) view, DIC. A. Habitus with extremely protruded pharynx. B, C. Outer and inner oral styles and cuticular weir at different focal levels; arrows mark thin terminal part of outer oral styles. D. Head and neck. E. Placids. F. Segments 1–3; extended focus image of four images; arrows mark reduced free flap. G. Segments 4–6; extended focus image of four images. White arrowheads in D, F and G mark type-6 sensory spots. Scale bar in A 200 µm. Scale bar in F 50 µm, valid for B–G. Abbreviations: fa, filamentous appendage of trichoscalid; ff, free flap; in, introvert; ios-1, inner oral style of ring -1; ltas, lateral terminal accessory spine; lv1, lateroventral spine of segment 1; mc, mouth cone; md7, middorsal spine of segment 7; mts, midterminal spine; mvpl, midventral placid; npl, narrow placid; oos, outer oral styles; ph, pharynx; s1, segment 1; sc01, primary spinoscalids of ring 01; tr, trichoscalid (D) or its basal plate (E); we, cuticular weir.

FIGURE 10. Condyloderes multispinosus, holotypic male (ZOO 1961.82) in ventral (A, B) and dorsal (CF) view, DIC. A. Segments 7 and 8; extended focus image of two images. B. Segments 9–11; extended focus image of four images. C. Segments 1–3; extended focus image of three images. D. Segments 4–6; extended focus image of three images. E. Segments 7 and 8; extended focus image of five images. F. Segments 9–11; extended focus image of nine images. White arrowheads in A–F mark type-6 sensory spots. Scale bar in F 50 µm, valid for A–F. Abbreviations: cu, cuspidate spine; ff, free flap; ld10, laterodorsal spine of segment 10; lv8, lateroventral spine of segment 8; md1, middorsal spine of segment 1; ne, protonephridial openings; s4, segment 4; ssp3, type-3 sensory spot.