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Fig. 2 in Phylogenomic analysis and morphological data suggest left-right swimming behavior evolved prior to the origin of the pelagic Phylliroidae (Gastropoda: Nudibranchia)

Fig. 2 Subtree of Phylliroe and its closest relatives from Dendronotida s.s., Dendronotidae, Scyllaeidae, and Tethyidae. Images from life animals and histological slides. a Dendronotus venustus. b, c Dendronotus frondosus. d–f Crosslandia viridis. g–i Melibe leonina. j–l Phylliroe

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Fig. 1 in Phylogenomic analysis and morphological data suggest left-right swimming behavior evolved prior to the origin of the pelagic Phylliroidae (Gastropoda: Nudibranchia)

Fig. 1 Maximum likelihood phylogeny of Cladobranchia from RAxML-NG using a concatenat- ed nucleotide matrix of 292 genes partitioned by codon position. All nodes with no support values in- dicated have 100% bootstrap support and a posterior probability of 1.0 in our analyses. The blue box indicates Dendronotida sensu stricto and the red outline shows the closest relatives to Phylliroe in our analysis (Melibe leonina, Tethyidae; Scyllaea fulva, Scyllaeidae; Dendronotus venustus, Dendronotidae), highlighted further in Fig. 2

Fig. 8 in Early development of Monoplex pilearis and Monoplex parthenopeus (Gastropoda: Cymatiidae): biology and morphology

Fig. 8 PCA analysis of M. pilearis and M. parthenopeus outlines. As given by DiaOutline, PC 1 and PC 2 shown. M. pilearis data space is shown in green and M. parthenopeus data space in red

Fig. 7 in Early development of Monoplex pilearis and Monoplex parthenopeus (Gastropoda: Cymatiidae): biology and morphology

Fig. 7 Partial warp score regression of M. pilearis and M. parthenopeus veliger side view images. Graphs of shape data (as partial warp scores) regressed onto the individual species a M. pilearis and b M. parthenopeus

Fig. 4 in Early development of Monoplex pilearis and Monoplex parthenopeus (Gastropoda: Cymatiidae): biology and morphology

Fig. 4 SEM comparison of M. pilearis and M. parthenopeus. a SEM images (× 200 magnification) of multiple M. pilearis veliger at 10 days post-laying. b SEM image of M. pilearis at × 270 magnification, 10 days postlaying. c M. pilearis veliger 7 days after emergence from egg clutch. Shown at × 440 magnification. d M. pilearis veliger 7 days after emergence from the egg clutch, apertural view, shown at × 400 magnification. e Image (× 1000 magnification) of the growing edge of the M. pilearis larval shell, demonstrating secreted "plates" fusing to form a completed shell. f M. parthenopeus veligers seen under brightfield microscopy 12 days post-laying. g M. parthenopeus veligers, 12 days after eggs were laid and immediately after emerging from egg clutch. h M. parthenopeus, 12 days after eggs deposited and immediately upon emerging from the egg clutch, operculum view

Fig. 6 in Early development of Monoplex pilearis and Monoplex parthenopeus (Gastropoda: Cymatiidae): biology and morphology

Fig. 6 Correlation of centroid size and relative warp of M. parthenopeus veliger side view images. Values of relative warp 1 plotted against centroid size for all M. parthenopeus veliger specimens. Data show no correlation between centroid size and shape variables (Spearman correlation test: rs = − 0.057, p = 0.599)

Fig. 3 in Early development of Monoplex pilearis and Monoplex parthenopeus (Gastropoda: Cymatiidae): biology and morphology

Fig. 3 Brightfield microscopy image of M. pilearis veligers 10 days postlaying. a View of bilobate veliger from the side. b View with cilia and eyespots immediately facing the lens

Fig. 1 in Early development of Monoplex pilearis and Monoplex parthenopeus (Gastropoda: Cymatiidae): biology and morphology

Fig. 1 Site map of collection site of M. parthenopeus and M. pilearis. Collection was carried out at Amity Point, North Stradbroke Island, and oyster leases on Moreton Island, Queensland, Australia. Map adapted from Google Maps

FIGURE 2 in Revisiting the disjunct distribution of Conopleura Hinds, 1844 (Mollusca: Gastropoda: Drilliidae)

FIGURE 2. Fenimorea striata (KIENER, 1840). A. ORIgINAL DRAWINg OF Pleurotoma striata KIENER, 1840 (SEE KIENER 1840). APERTURAL AND AbAPERTURAL VIEW. B. THE MATERIAL OF P. striata FOUND IN THE DELESSERT COLLECTION AND THE LAbEL ACCOMPANYINg IT— 35.6×13.5 (MHNG-MOLL-93953). C–E. APERTURAL, AbAPERTURAL, AND APICAL VIEW OF THE SHELL IN B.

FIGURE 1. ORIgINAL LAbELS. A. Conopleura striata HINDS, 1844 in Revisiting the disjunct distribution of Conopleura Hinds, 1844 (Mollusca: Gastropoda: Drilliidae)

FIGURE 1. ORIgINAL LAbELS. A. Conopleura striata HINDS, 1844 OLDEST LAbEL KNOWN. FROM TOP TO bOTTOM: I) PRESUMAbLY HANDWRITTEN bY E.A. SMITH; II) PRESUMAbLY HANDWRITTEN bY J.E. GRAY; III) PRESUMAbLY HANDWRITTEN bY AN UNKNOWN MUSEUM ASSISTANT OR CURATOR [A. SALVADOR, PERS. COMM.]. B. Conopleura latiaxisa CHINO, 2011 HOLOTYPE LAbEL. C. Conopleura aliena SMRIgLIO, MARIOTTINI & CALASCIbETTA, 1999 HOLOTYPE LAbEL. D. Buccinum lima DILLWYN, 1817 OLDEST LAbEL KNOWN, HANDWRITTEN bY L. SPENgLER [T. SCHIøTTE, PERS. COMM.]. E. Kenyonia pulcherrima BRAZIER, 1896 OLDEST LAbEL KNOWN, PRESUMAbLY HANDWRITTEN bY J. BRAZIER [A. CROWTHER, PERS. COMM.]. F. Buccinum labyrinthus GMELIN, 1791 OLDEST LAbEL KNOWN, HANDWRITTEN bY O.A.L. MøRCH [OLDER LAbELS PRESUMAbLY LOST: T. SCHIøTTE, PERS. COMM.].

FIGURE 6 in Revisiting the disjunct distribution of Conopleura Hinds, 1844 (Mollusca: Gastropoda: Drilliidae)

FIGURE 6. AbNORMAL SPECIMENS SHOWINg HYPERMORPHIC SHOULDER, ANAL SINUS, AND/OR SHOULDER SULCUS WITH SEPTA, AND COMPARISON WITH CONSPECIFIC SPECIMENS SHOWINg USUAL MORPHOTYPES. SPECIMENS/SHELLS NOT TO SCALE. A–H. Mitra zonata MARRYAT, 1819. A–B. APERTURAL AND AbAPERTURAL OF AN AbNORMAL SHELL—SPANISH MOROCCO—50–80 M—33.3×13 (FS). C–E. APERTURAL, AbAPERTURAL, AND APICAL VIEW OF AN AbNORMAL SHELL—TUSCAN ARCHIPELAgO (ITALY)—71×20.3 (FG). F–H. APERTURAL, AbAPERTURAL, AND APICAL VIEW OF A USUAL SHELL—GULF OF NAPLES (ITALY), 20–50 M—78.8×19.8 (AN). I–L. Mitra mitra (LINNAEUS, 1758). I–J. APERTURAL AND AbAPERTURAL VIEW OF AN AbNORMAL SHELL—OLANgO ISLAND (PHILIPPINES)—67.9×22.9 (AMI). K–L. APERTURAL AND AbAPERTURAL VIEW OF A USUAL SHELL—PHILIPPINES—88.5×25 (AN). M–P. Conus SP. sensu lato. HOLOTYPE OF Kenyonia pulcherrima BRAZIER, 1896—NEW HEbRIDES (VANUATU)—28.6×9.6 (SAMA D6181). APERTURAL, AbAPERTURAL, APICAL VIEW AND MAgNIFICATION OF PROTOCONCH AND FIRST WHORLS. Q–W. Buccinum undatum LINNAEUS, 1758. Q–T. HOLOTYPE OF Buccinum labyrinthus GMELIN, 1791—SCHEWENINgEN (HOLLAND)—60.7×39 (ZMUC-GAS-186). APERTURAL, ADAPERTURAL, APICAL VIEW AND MAgNIFICATION OF THE FIRST WHORLS. U–W. APERTURAL, AbAPERTURAL, APICAL VIEW AND MAgNIFICATION OF PROTOCONCH AND FIRST WHORLS OF A USUAL SPECIMEN—BELgIUM—78.8×47.4 (AN).

FIGURE 5 in Revisiting the disjunct distribution of Conopleura Hinds, 1844 (Mollusca: Gastropoda: Drilliidae)

FIGURE 5. AbNORMAL SPECIMENS/SHELLS SHOWINg HYPERMORPHIC SHOULDER, ANAL SINUS, AND/OR SHOULDER SULCUS WITH SEPTA, AND COMPARISON WITH CONSPECIFIC SPECIMENS SHOWINg USUAL MORPHOTYPES. SPECIMENS/SHELLS NOT TO SCALE. A–D. Semicassis granulata (BORN, 1778). A–B. APERTURAL AND AbAPERTURAL VIEW OF AN AbNORMAL SPECIMEN—ANZIO (ITALY), 50–80 M—65×44.4 (PB). C–D. APERTURAL AND AbAPERTURAL VIEW OF A USUAL SPECIMEN—BACOLI (ITALY), 30 M—90.5×54.9 (AP). E–J. Bolinus brandaris (LINNAEUS, 1758). E–G. APERTURAL, AbAPERTURAL, AND APICAL VIEW OF AN AbNORMAL SPECIMEN—ANZIO (ITALY), 50–80 M—70.2×42.7 (PB). H–J. APERTURAL, AbAPERTURAL, AND APICAL VIEW OF A USUAL SPECIMEN—LA SPEZIA (ITALY)—74×43.8 (PB). K–R. Mitra aurantia (GMELIN, 1791). K–N. APERTURAL, LATERAL, AbAPERTURAL, AND APICAL VIEW OF AN AbNORMAL SHELL—PHILIPPINES—28.4×12.7 (AN). O–R. APERTURAL, LATERAL, AbAPERTURAL, AND APICAL VIEW OF A USUAL SHELL—LILOAN (PHILIPPINES), 07/2015, LUMUN LUMUN NETS, 60 M—24.6×10.9 (AN).

FIGURE 4 in Revisiting the disjunct distribution of Conopleura Hinds, 1844 (Mollusca: Gastropoda: Drilliidae)

FIGURE 4. COMPARISON bETWEEN "Conopleura" aliena SMRIgLIO, MARIOTTINI & CALASCIbETTA, 1999 AND Tritia lima (DILLWYN, 1817). SPECIMENS/SHELLS NOT TO SCALE. A–H, W. C. aliena HOLOTYPE—CENTRAL TYRRHENIAN SEA (ITALY)—6.8×4 (MZB 12694). A–C. APERTURAL, LATERAL, AND AbAPERTURAL VIEW. D. APICAL VIEW. E. BASAL VIEW HIgHLIgHTINg A POSSIbLE AXIAL SCULPTURE OF FAINT RIbS (WHITE ARROWHEADS). F–H. BREAK ON SHELL SHOULDER LEADINg TO THE DISCONTINUOUS LAMELLAR SCULPTURE (bLACK ARROWHEADS). F. APICAL VIEW. G–H. PROTOCONCH: SEM APICAL AND LATERAL VIEWS. I–V. T. lima. I–J. TYPE OF Buccinum lima DILLWYN, 1817—"EAST INDIES"—32.2×18.4 (ZMUC-GAS-819). APERTURAL AND AbAPERTURAL VIEW. K. APERTURAL VIEW—CHIOggIA (ITALY), 25 M— 33.7×18.8 (AP). L. APERTURAL VIEW—SARDINIAN CHANNEL (ITALY), 650 M—11.2×6.9 (AN). M. APERTURAL VIEW—CANNIZZARO (ITALY), 45 M—10.7×5.7 (AN). N. APERTURAL VIEW—SIRACUSA (ITALY), 75 M—18.6×11 (AN). O. APERTURAL VIEW—CENTRAL TYRRHENIAN SEA (ITALY), 300 M—6.6×3.9 (AN). P–T. VARIAbILITY OF AXIAL SCULPTURE—CENTRAL TYRRHENIAN SEA (ITALY)—10.6×6.4; 12.7×7.7; 9.9×5.8; 10.7×6.1; 11.2×6.9 (AN). U–V. SHELL OF A jUVENILE SPECIMEN—CENTRAL TYRRHENIAN SEA (ITALY)—4.2×2.8 (AN). U. LIgHT AND SEM PHOTOS. V. SEM APICAL VIEW OF THE SHELL FIgURED IN U. W. SEM APICAL VIEW OF THE SHELL FIgURED IN A– H. SCALE bARS: V–W—500 µM.

FIGURE 2 in Revisiting the disjunct distribution of Conopleura Hinds, 1844 (Mollusca: Gastropoda: Drilliidae)

FIGURE 2. LANDMARKS (LMS) USED IN THE STUDY OF TAXA CONFIRMED IN Conopleura HINDS, 1844 (SEE "RESULTS" FOR FURTHER EXPLANATIONS), AND THIN-PLATE SPLINE REPRESENTATION OF THE MEAN RW1 VALUE. NUMbERS (1–12) AS REPORTED IN "GEOMETRIC MORPHOMETRY". LANDMARKS CONNECTED bY LINES TO FACILITATE INTERPRETATION OF THE DIFFERENCES bETWEEN THE TWO TAXA (SEE TEXT). A, C. Conopleura striata HINDS, 1844. B, D. Conopleura latiaxisa CHINO, 2011. SCALE bARS: 1 CM.

FIGURE 3 in Revisiting the disjunct distribution of Conopleura Hinds, 1844 (Mollusca: Gastropoda: Drilliidae)

FIGURE 3. SPECIES CONFIRMED IN Conopleura HINDS, 1844. SPECIMENS/SHELLS NOT TO SCALE. A–L. Conopleura striata HINDS, 1844. A–C. SYNTYPE 1. APERTURAL, LATERAL, AND AbAPERTURAL VIEW—NEW GUINEA—8.1×4.5 (NHMUK 1879.2.26.39). D. LIVE SPECIMEN—ALIgUAY ISLAND (PHILIPPINES)—15.7 TOTAL HEIgHT. E. OPERCULUM—OFF PANgLAO (BOHOL ISLAND, PHILIPPINES)—3.3×1.6 (USNM 903590). F–J. ALIgUAY ISLAND (PHILIPPINES)—16.7×8.7 (AN). F–G. APERTURAL AND LATERAL VIEW. H. APICAL VIEW. I. MAgNIFICATION OF THE PRIMARY CORDS OF THE SPIRAL SCULPTURE. J. MAgNIFICATION OF THE COLUMELLAR EDgE. K–L. PROTOCONCH: SEM LATERAL AND APICAL VIEWS—OFF SURIgAO (MINDANAO ISLAND, PHILIPPINES)—9.8×5.1 (AN). M–Z. Conopleura latiaxisa CHINO, 2011. M–O. HOLOTYPE. APERTURAL, LATERAL, AND AbAPERTURAL VIEW—OFF PUNTA ENgAñO (MACTAN ISLAND, PHILIPPINES)—10.6×4.8 (NSMT- MO. 77385). P–U. OFF MALINgIN ISLAND (PHILIPPINES)—10.1×4.4 (AN). P–Q. APERTURAL AND LATERAL VIEW. R. APICAL VIEW. S. THE TRIgONAL ACUMINATE-ELONgATE SPINES gIVINg AN UNDULATINg APPEARANCE TO SHELLS. T. MAgNIFICATION OF THE PRIMARY CORDS OF THE SPIRAL SCULPTURE. U. MAgNIFICATION OF THE COLUMELLAR EDgE. V–Z. PROTOCONCH: SEM LATERAL AND APICAL VIEWS—OFF MALINgIN ISLAND (PHILIPPINES)—10.1×4.4 (AN). SCALE bARS: K, V, L, Z—500 µM.

FIGURE 1 in Revisiting the disjunct distribution of Conopleura Hinds, 1844 (Mollusca: Gastropoda: Drilliidae)

FIGURE 1. Biogeographic realms and worldwide distribution of the genus Conopleura Hinds, 1844. Numbers as reported in "Material examined" and "Known distribution and bathymetric range". Stars corresponding to type localities, squares to published data and/or unpublished material coming from sites of occurrence already known, dots to new localities reported in the present paper. A. Biogeographic realms modified from Spalding et al. (2007), and squares highlighting the areas magnified in B–D. B. Known distribution of Conopleura striata Hinds, 1844 (sites of presence in blue), square highlighting the area magnified in C. C. Known distribution of Conopleura latiaxisa Chino, 2011 (sites of presence in red). D. Known distribution of Conopleura aliena Smriglio, Mariottini & Calascibetta, 1999 (sites of presence in purple). Scale bars: A–B—1000 km; C–D—500 km.

FIGURE 1 in Clarification of the systematic position of Patula spatiosa Lindholm, 1922 from eastern Turkey (Mollusca: Gastropoda)

FIGURE 1. Oxychilus spatiosus (Lindholm, 1922). A. "Mesre opposite to Basch-kai at the upper Kura" (erroneous, probably from present day Artvin Province, Turkey, see text) (ZIN, holotype of P. spatiosa, including the original labels). B. Turkey, 3.5 km N of Tonya (ZMH 96429, topotype to O. costatus Riedel, 1989). C. Turkey, small waterfall E of Ortacalar (ZMH 96370).

FIGURE 2 in Clarification of the systematic position of Patula spatiosa Lindholm, 1922 from eastern Turkey (Mollusca: Gastropoda)

FIGURE 2. Distribution of Oxychilus spatiosus (Lindholm, 1922), n. comb. A star indicates the erroneous type locality of P. spatiosa as given by Lindholm (1922).

FIGURES 2A, B in A new species of the genus Riccardoella (Acari: Prostigmata: Ereynetidae) from the land snail Tauphaedusa tau (Gastropoda: Clausliidae) in Japan

FIGURES 2A, B. Riccardoella (Proriccardoella) tokyoensis n. sp.: male (paratype, male 21306D). A—dorsal view, Bventral view and coxae. Scale bar 50 µm. Arrows: variation of setae 3a, ps1 and ps2.

FIGURE 9 in A new species of the genus Riccardoella (Acari: Prostigmata: Ereynetidae) from the land snail Tauphaedusa tau (Gastropoda: Clausliidae) in Japan

FIGURE 9. Phylogenetic trees of Riccardoella (Proriccardoella) tokyoensis n. sp. and related taxa obtained from the Maximum-likelihood method using partial amino acid sequences of COX1. Only boot strap values above 50% are shown. The outgroup is Eniochthonius crosbyi (accession number in GenBank: AKT66632).