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Figure 2 in The one-palped spider genera Tidarren and Echinotheridion in the Old World (Araneae, Theridiidae), with comparative remarks on Tidarren from America

Figure 2. Male of Tidarren cuneolatum (Tullgren), just moulted into subadult stage. (a) Moulting and amputation site below hub, the usual resting place of the spider; (b) male (left) removing his exuvia from the moulting site; (c) two-palped male before amputation.

Figures 3–6 in The one-palped spider genera Tidarren and Echinotheridion in the Old World (Araneae, Theridiidae), with comparative remarks on Tidarren from America

Figures 3–6. Subadult males. (3, 4) Echinotheridion gibberosum (Kulczynski) from Tenerife. (3) Ecdysis just completed, male suspended on moulting thread, both palps present. (4) Palp amputation accomplished; arrow points to detached palp. (5, 6) Tidarren sisyphoides (Walckenaer) from Mexico. (5) Early phase of amputation, circling. (6) Amputated palp already sucked out.

Figures 37–40 in The one-palped spider genera Tidarren and Echinotheridion in the Old World (Araneae, Theridiidae), with comparative remarks on Tidarren from America

Figures 37–40. (37) Tidarren sisyphoides (Walckenaer) from Mexico. (38) T. argo Knoflach and van Harten from Yemen. (39, 40) Echinotheridion gibberosum (Kulczynski) from Tenerife. (37) Male epigaster with five epiandrous gland spigots. (38) Male spinnerets, colulus absent. (39, 40). Female spinnerets. Note absence of colulus and colular setae, a synapomorphy of Theridiinae according to Agnarsson (2004), and presence of large, compressed spigots of glandulae aggregatae on posterior lateral spinnerets, typical of Theridiidae. Scale bars: 0.02 mm (37); 0.05 mm (38); 0.2 mm (39); 0.1 mm (40).

Figures 97–102 in The one-palped spider genera Tidarren and Echinotheridion in the Old World (Araneae, Theridiidae), with comparative remarks on Tidarren from America

Figures 97–102. Tidarren cuneolatum (Tullgren). Female epigynum/vulva in lateral (97), ventral (98–101), and dorsal view (102). Specimens from Yemen, Sana'a (97, 98, 102), Kenya (99), Cape Verde Islands (100), and Gran Canaria (101). Scale bars: 0.1 mm.

Figures 111–115. Tidarren dentigerum n in The one-palped spider genera Tidarren and Echinotheridion in the Old World (Araneae, Theridiidae), with comparative remarks on Tidarren from America

Figures 111–115. Tidarren dentigerum n. sp. from Yemen, Ta'izz. Female epigynum/vulva in lateral (111), ventral (112, 113, different specimens), dorsal (114), and aboral view (115). Scale bars: 0.1 mm.

Figures 95, 96 in The one-palped spider genera Tidarren and Echinotheridion in the Old World (Araneae, Theridiidae), with comparative remarks on Tidarren from America

Figures 95, 96. Tidarren cuneolatum (Tullgren) from Yemen. Female epigynum/vulva ventral (95) and dorsal view (96). Auto-Montage digital photos.

Figures 136–140. Tidarren konrad n in The one-palped spider genera Tidarren and Echinotheridion in the Old World (Araneae, Theridiidae), with comparative remarks on Tidarren from America

Figures 136–140. Tidarren konrad n. sp., from Yemen, Hammam 'Ali. Female epigynum/vulva in frontal (136), ventral (137, 138), aboral (139), and lateral view (140). Scale bars: 0.1 mm.

Figures 109, 110. Tidarren dentigerum n in The one-palped spider genera Tidarren and Echinotheridion in the Old World (Araneae, Theridiidae), with comparative remarks on Tidarren from America

Figures 109, 110. Tidarren dentigerum n. sp., different specimens from Yemen, Ta'izz. Left male palp, retrolateral view. Scale bars: 0.1 mm.

Figures 56–61 in The one-palped spider genera Tidarren and Echinotheridion in the Old World (Araneae, Theridiidae), with comparative remarks on Tidarren from America

Figures 56–61. Tidarren argo Knoflach and van Harten from Yemen, Hammam 'Ali (56, 57, 60), Khamis Bani Sa'd (61), and from Tibesti (58, 59). Female epigynum/vulva in lateral (56, 58), ventral (57, 59, 61), and aboral view (60). Scale bar: 0.1 mm.

Figure 72 in The one-palped spider genera Tidarren and Echinotheridion in the Old World (Araneae, Theridiidae), with comparative remarks on Tidarren from America

Figure 72. Tidarren argo Knoflach and van Harten from Yemen. Male palp with expanded horn-shaped haematodochae which keep palp fastened to epigynum. Basal haematodocha (posterior horn) pressed against the female's venter, median one (anterior horn) towards her epigaster.

Figures 73, 74 in The one-palped spider genera Tidarren and Echinotheridion in the Old World (Araneae, Theridiidae), with comparative remarks on Tidarren from America

Figures 73, 74. Tidarren argo Knoflach and van Harten from Yemen. (73) Female guarding egg-sac. (74) Further egg-sacs are attached at intervals of about 2 weeks and guarded. Upper one already hatched, right with first instars emerged from the eggs, left with eggs just deposited.

Figure 9 in Revision of Chone Krøyer, 1856 (Polychaeta: Sabellidae) from North America and descriptions of four new species

Figure 9. Chone magna. (A) Anterior end, dorsal view; (B) same, ventral view; (C) same, lateral view; (D) radiolar tip; (E) anterior end, dorsal view, not reflexed; (F) same, lateral view, not reflexed; (G) thoracic segment, lateral view; (H) posterior abdomen; (I) dorsal lip; (J) thoracic, elongate, narrowly hooded chaeta; (K) paleate chaeta; (L) thoracic uncinus; (M) dorsal most radiole and dorsal lip; (N) anterior abdominal uncinus; (O) posterior abdominal uncinus; (P) radiolar tip. (A–C, L, N, O) [USNM 17281, holotype]; (D, G–I, M) [FHL 293]; (E, F, J, K, P) [USNM 43636].

Figure 15. Chone quebecensis n in Revision of Chone Krøyer, 1856 (Polychaeta: Sabellidae) from North America and descriptions of four new species

Figure 15. Chone quebecensis n. sp., transversal sections from posterior abdomen. (A) Panoramic view; (B) oocytes and yolk; (C) gut and glandular, abdominal band; (D) ventral package of longitudinal muscle; (E) glandular, columnar epithelium; (F) glandular, abdominal band. [CMN 1983-0165, topotype]. Scale bars: 200 mm (A); 50 mm (B); 100 mm (C); 56 mm (D); 12.5 mm (E, F).

Figure 12 in Revision of Chone Krøyer, 1856 (Polychaeta: Sabellidae) from North America and descriptions of four new species

Figure 12. Chone picta. (A) Anterior end, dorsal view; (B) same, ventral view; (C) same, lateral view; (D) posterior end, lateral view; (E) branchial lobe; (F) thoracic, elongate, narrowly hooded chaeta; (G) bayonet chaeta; (H) thoracic uncinus; (I, J) paleate chaetae; (K) abdominal, elongate chaeta; (L) anterior abdominal uncinus; (M) posterior abdominal uncinus. [YPM 30002, topotype].

Figure 18 in Revision of Chone Krøyer, 1856 (Polychaeta: Sabellidae) from North America and descriptions of four new species

Figure 18. Jasmineira princei, Chone ungavana, and Euchone analis. (A) Anterior end, ventral view; (B) same, lateral view; (C) radiolar tip; (D) bayonet chaeta; (E) paleate chaeta; (F) thoracic uncinus; (G) abdominal uncinus; (H) bayonet chaeta; (I) thoracic uncinus; (J, K) anterior abdominal uncini; (L, M) posterior abdominal uncini; (N) posterior end; (O) vascular loops. (A–G) [BMNH 1921.5.1.4373, lectotype] Jasmineira princei; (H–N) [CMN 1900-8369, holotype] Chone ungavana; (O) [USNM 333] Euchone analis.

Figure 8 in Revision of Chone Krøyer, 1856 (Polychaeta: Sabellidae) from North America and descriptions of four new species

Figure 8. Chone gracilis. (A) Anterior end, dorsal view; (B, E) same, ventral view; (C, F) same, lateral view; (D, H) radiolar tip; (G) posterior end; (I) dorsal and ventral lips; (J) thoracic uncinus; (K) bayonet chaeta; (L) paleate chaeta; (M) anterior abdominal uncinus; (N) posterior abdominal uncinus. (E–G) Methyl green staining. (A–D, J– N) [USNM 5513, holotype]; (E–H) [ANSP 2208, paratype].

Figure 2 in Revision of Chone Krøyer, 1856 (Polychaeta: Sabellidae) from North America and descriptions of four new species

Figure 2. Chone aurantiaca. (A, D) Anterior end, dorsal view; (B, E) same, ventral view; (C) same, lateral view; (F) posterior abdomen; (G) thoracic segments; (H, J) radiolar tips; (I) dorsal pinnular appendages; (K) thoracic uncinus from chaetiger 5; (L–N) paleate chaetae; (O) elongate, hooded chaeta, median region; (P) anterior abdominal uncinus; (Q) posterior abdominal uncinus. (A–C, F, J, K, P, Q) [MCZ 1933, holotype]; (D, E, G–I, N, O) [USNM 43637]; (L, M) [FHL 1700].

Figure 5 in Revision of Chone Krøyer, 1856 (Polychaeta: Sabellidae) from North America and descriptions of four new species

Figure 5. Chone ecaudata. (A–C) Branchial crown, different views; (D) radiolar tip; (E) posterior end; (F) anterior abdominal uncinus; (G) posterior abdominal uncinus; (H) bayonet chaeta; (I) thoracic uncinus; (J) thoracic, elongate, narrowly hooded chaeta; (K, L) paleate chaetae. (A–C) [LACM-AHF 2472-53, 003213]; (D, F, G, K, L) [USNM 17319, holotype C. ecaudata]; (E, H, J) [LACM-AHF 013, paratype C. minuta]; (I) [LACM-AHF, LH02-1205].

Figure 7. Chone eiffelturris n in Revision of Chone Krøyer, 1856 (Polychaeta: Sabellidae) from North America and descriptions of four new species

Figure 7. Chone eiffelturris n. sp. (A) Body, ventro-lateral view; (B) anterior end, dorsal view; (C) same, lateral view; (D) radiolar tip; (E) radioles; (F) base of the branchial crown; (G) dorsal lip; (H) dorsal lip and dorsal most radiole; (I) paleate chaetae; (J) anterior abdominal uncinus; (K) posterior abdominal uncinus; (L) thoracic acicular uncinus. (A–C) Methyl green staining, in (A) only some segments are coloured. (A–C) [LACM-AHF, holotype]; (D–L) [LACM-AHF, paratype].

Figure 4 in Revision of Chone Krøyer, 1856 (Polychaeta: Sabellidae) from North America and descriptions of four new species

Figure 4. Chone ecaudata (with methyl green staining). (A) Whole worm, ventro-lateral view; (B) anterior end, lateral view; (C) posterior thorax, lateral view showing oocytes; (D) anterior end, dorsal view; (E–G) same, ventral view. (A–C, F) [LACM-AHF 0183, paratype C. minuta]; (D, G) [USNM 17319, holotype C. ecaudata]; (E) [LACM-AHF 2472-53, 003213].