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Figure 2. Dextrasepiola taenia n. gen. & n in Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia

Figure 2. Dextrasepiola taenia n. gen. & n. sp., female, paratype 1 (MOV F91359): a, dorsal view; b, ventral view; c, oral view of arm crown showing sucker arrangements of female.

Figure 5. Dextrasepiola taenia n. gen. & n in Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia

Figure 5. Dextrasepiola taenia n. gen. & n. sp. (grids in background: 1 mm × 1 mm): a, spermatophore from the holotype (MOV F80458); b, close-up of cement body; c, bursa copulatrix, paratype 1 (MOV F31359; bc: bursa copulatrix; rg: right gill; rsf: right side of funnel); d, bursa copulatrix, juvenile (MOV F31360; bc: bursa copulatrix; lflc: left funnel locking cartilage; rflc: right funnel locking cartilage; rg: right gill); e, bursa copulatrix, paratype 3 (MOV F31361; bc: bursa copulatrix; lsf: left side of funnel; ms: mantle septum; rsf: right side of funnel); f, close-up of a portion of e, arrow points to opening of bursa copulatrix.

Figure 9. Amutatiola macroventosa n. gen. & n in Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia

Figure 9. Amutatiola macroventosa n. gen. & n. sp. male, paratype 5 (MOV F158244). Oral views of arms (grids in background: 1 mm × 1 mm): a, right arm I; b, right arm II; c, right arm III; d, right arm IV; e, left arm I; f, left arm II; g, left arm III; h, left arm IV.

Figure 11. Amutatiola macroventosa n.gen. & n in Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia

Figure 11. Amutatiola macroventosa n.gen. & n.sp. (grids in background: 1 mm × 1 mm): a, right tentacular club, male, paratype 5 (MOV F158244); b, photophores (p), male, paratype 5 (MOV F158244); c, lateral view of upper beak, female, paratype 1 (MOV F275293); d, lateral view of lower beak, female, paratype 1 (MOV F275293); e, top view of lower beak, female, paratype 1 (MOV F275293); f, radula, female, paratype 1 (MOV F275293).

Figure 10. Amutatiola macroventosa n. gen. & n in Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia

Figure 10. Amutatiola macroventosa n. gen. & n. sp. Sucker ring dentition (grids in background: 1 mm × 1 mm): a, left arm IV of male, paratype 5 (F158244) showing normal (non-enlarged) suckers near arm tip; b, right arm III of male, paratype 5 (F158244) showing sucker ring of enlarged suckers; c, d, normal sucker of left arm II of male, paratype 5 (F158244); e, left arm I of male, paratype 5 (F158244) showing enlarged suckers; f, an enlarged sucker of e showing sucker ring; g, dorsal view of female (F275296) showing non-enlargement of suckers; h, ventral view of female (F275296) showing non-enlargement of suckers; i, arm crown of female (F275296) showing non-enlargement of suckers; j, close-up of a portion of an arm of i showing sucker ring dentition.

Figure 4. Dextrasepiola taenia n. gen. & n in Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia

Figure 4. Dextrasepiola taenia n. gen. & n. sp. (grids in background: 1 mm × 1 mm): a, left tentacular club, female, paratype 3 (MOV F91361); b, inside mantle cavity: photophores (p), left gill (lg), male, holotype (MOVF80458); c, radula (paratype 1, MOV F91359); d, lateral view of upper beak (MOV F91361); e, lateral view of lower beak (MOV F91361); f, top view of lower beak (MOV F91361).

Figure 1. Dextrasepiola taenia n. gen. & n in Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia

Figure 1. Dextrasepiola taenia n. gen. & n. sp., male: a, dorsal view, holotype (MOV F80458); b, ventral view (MOV F80458); c, lateral view (MOV F80458); d, hectocotylised arm (right arm I; MOV F80458); e, diagram of the hectocotylised arm showing tape-like modification, paratype 2 (MOV F74469; drawn by T. Okutani); f, inside mantle cavity, showing photophores (p) and other organs (MOV F80458); g, diagram of opened funnel and inside mantle cavity showing dorsal funnel organ (dfo), ventral funnel organ (vfo) and photophores (p; MOV F80458; drawn by T. Okutani).

Figure 7. Amutatiola macroventosa n. gen. & n in Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia

Figure 7. Amutatiola macroventosa n. gen. & n. sp. male, paratype 7 (MOV F275295; grids in background: 1 mm × 1 mm): a, dorsal view; b, ventral view; c, arm crown showing arm sucker arrangement; d, lateral view.

Figure 3. Dextrasepiola taenia n. gen. & n in Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia

Figure 3. Dextrasepiola taenia n. gen. & n. sp. male, paratype 2 (MOV F74469). Oral view of arms (grids in background: 1 mm × 1 mm): a, right arm I, arrow points to remnant of a tiny sucker; b, right arm II; c, right arm III; d, right arm IV; e, left arm I; f, left arm II; g, left arm III; h, left arm IV.

Figure 8. Amutatiola macroventosa n. gen. & n in Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia

Figure 8. Amutatiola macroventosa n. gen. & n. sp.: a, dorsal view, female, paratype 1 (MOV F275293); b, ventral view, female, paratype 1 (MOV F275293); c, arm crown showing arm sucker arrangement, female, paratype 1 (MOV F275293); d, diagram of funnel locking cartilage, female, paratype 1 (MOV F275293; drawn by T. Okutani); e, diagram of funnel organs, male, paratype 3 (MOV F80083; drawn by T. Okutani).

Figure 13 in Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia

Figure 13. Distributional map of Dextrasepiola taenia n. gen. & n. sp. (blue) and Amutatiola macroventosa n. gen. & n. sp. (red).

Figure 6. Amutatiola macroventosa n. gen. & n in Two new genera and species of sepioline squids (Cephalopoda: Sepiolidae) from Australia

Figure 6. Amutatiola macroventosa n. gen. & n. sp. male, holotype (MOV F80081): a, dorsal view; b, ventral view; c, lateral view; d, inside mantle cavity showing funnel locking cartilages, partial photophores; e, diagram of photophores (p; drawn by T. Okutani); f, arm crown showing arm sucker arrangement; g, diagram of arm crown showing sucker arrangement (drawn by T. Okutani); h, diagram of arm IV showing sucker arrangement (drawn by T. Okutani).

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Fig. 2 in Holistic description of new deep sea megafauna (Cephalopoda: Cirrata) using a minimally invasive approach

Fig. 2 (See legend on next page.) (See figure on previous page.) Fig. 2 Grimpoteuthis imperator sp. nov. ZMB MOLL 240160. a Habitus prior to MRI following several months in 10% formalin solution showing a right lateral view, anterior facing right. The overlay of a lateral view of the surface-rendered 3D model (Additional file 2) illustrates relative size and position of the reconstructed organ systems. b Oblique anterior view of the entire 3D model of selected internal organs. c Virtual section through the left white body, anterior facing left. d Central nervous system and selected sensory organs, dorsal view, anterior facing up. e Volume rendering of the left stellate ganglion, anterior facing left. f Digestive tract with associated organs, right lateral view, anterior facing right. g Specimen prior to μCT following several months in 70% ethanol solution, dorsal view, anterior facing up. Stippled frame denotes the μCT region of interest. h Virtual section through the 3D μCT dataset, anterior facing right. The asterisk denotes ingested sediment. i, j Right lateral and oral views of the surface-rendered 3D model of the upper beak (Additional file 3). k, l Left lateral and oral views of the lower beak. m Virtual section through the 3D μCT dataset showing the anterior part of the radula in sagittal section. n Volume rendering of the radula, oral view. The asterisk denotes ingested sediment, arrow points to the rhachidian tooth. o, p Dorsal and right lateral views of the shell, anterior facing down. Stippled line denotes the fin cartilage insertion. q, r Dorsal and left lateral views of the male reproductive system, anterior facing left

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Fig. 3 in Holistic description of new deep sea megafauna (Cephalopoda: Cirrata) using a minimally invasive approach

Fig. 3 Geographic distribution of identified and unidentified specimens of Grimpoteuthis in the Pacific Ocean. See Table 3 for a list of the respective type localities

Fig. 22 in Eleven New Species of Dicyemids (Phylum Dicyemida) from Octopus longispadiceus and O. tenuicirrus (Mollusca: Cephalopoda: Octopoda) in Japanese Waters

Fig. 22. Dicyemodeca kukii sp. nov., photographs of syntype specimens on slide NSMT-Me-57: a–c, nematogen, anterior region; d, e, rhombogen, anterior region; f, vermiform embryos within axial cell; g, infusorigen; h, i, infusoriform embryos, horizontal section (h), sagittal section (i). Scale bars: 10 µm.

Fig. 25 in Eleven New Species of Dicyemids (Phylum Dicyemida) from Octopus longispadiceus and O. tenuicirrus (Mollusca: Cephalopoda: Octopoda) in Japanese Waters

Fig. 25. Possible adhering processes of juvenile vermiform individuals of Dicyemennea leptocephalum; (a) juvenile individuals attached to the surface of the renal appendage by their calottes; (b) the calottes expand to be close to nearby calotte of individuals one another; (c) the calottes are adhering to one another.

Fig. 18 in Eleven New Species of Dicyemids (Phylum Dicyemida) from Octopus longispadiceus and O. tenuicirrus (Mollusca: Cephalopoda: Octopoda) in Japanese Waters

Fig. 18. Dicyemennea desmocephalum sp. nov., photographs of syntype specimens on slide NSMT-Me-55: a, c, d, nematogen, entire, note that individuals adhere together with calottes (a), (c); b, g, rhombogen, entire, note that individuals adhere together with calottes (b); anterior region; e, vermiform embryos within axial cell; f, young nematgen, entire; f, h, infusorigen; i, j, infusoriform embryos, horizontal section (i), sagittal section (j). Scale bars: 20 µm in a–e, 10 µm in e, f, h–j.

Fig. 16 in Eleven New Species of Dicyemids (Phylum Dicyemida) from Octopus longispadiceus and O. tenuicirrus (Mollusca: Cephalopoda: Octopoda) in Japanese Waters

Fig. 16. Dicyemennea moritakii sp. nov., photographs of syntype specimens on slide NSMT-Me-54: a, b, nematogen, anterior region; c, vermiform embryos within axial cell; d, e, rhombogen, anterior region; f, infusorigen; g, h, infusoriform embryos, horizontal section (g), sagittal section (h). Scale bars: 20 µm in a–e, 10 µm in f–h.

Fig. 15 in Eleven New Species of Dicyemids (Phylum Dicyemida) from Octopus longispadiceus and O. tenuicirrus (Mollusca: Cephalopoda: Octopoda) in Japanese Waters

Fig. 15. Dicyemennea leptocephalum sp. nov., drawn from syntype specimens on slide NSMT-Me-53: a, nematogen, entire; b–d, rhombogen, entire; e, nematogen, anterior region; f, g, vermiform embryo within axial cell, cilia omitted (f), optical section (g); h, infusorigen; i–k, infusoriform embryos, dorsal view (i; cilia omitted), ventral view (j; cilia omitted), sagittal section (k). Scale bars: 100 µm in a–d, 50 µm in e, 10 µm in f–k.

Fig. 21 in Eleven New Species of Dicyemids (Phylum Dicyemida) from Octopus longispadiceus and O. tenuicirrus (Mollusca: Cephalopoda: Octopoda) in Japanese Waters

Fig. 21. Dicyemennea tobaense sp. nov., drawn from syntype specimens on slide NSMT-Me-56: a, nematogen, entire; b, rhombogen, entire; c, d, nematogen, anterior region; e, rhombogen, anterior region; f, g, vermiform embryo within axial cell, cilia omitted (f), optical section (g); h, infusorigen; i–k, infusoriform embryos, dorsal view (i; cilia omitted), ventral view (j; cilia omitted), sagittal section (k). Scale bars: 100 µm in a, b, 10 µm in c–k.