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FIG. 2 in A new species of the genus Coryphella (Gastropoda: Nudibranchia) from the Kuril Islands

FIG. 2. Living specimens of Coryphella alexanderi sp. nov. A. Paratype ZMMU WS14380 in natural environment. B. Holotype MIMB42268, dorsal view, specimens was damaged during collection. C. Holotype MIMB42268, dorsolateral view. D. Paratypes MIMB42269, specimens were damaged during collection. Scale bar: 5 mm. Photo credits: A – Alexander Semenov. BD – Anastassya Maiorova. РИС. 2. ПриЖиЗненные фотографии Coryphella alexanderi sp. nov. A. Паратип ZMMU WS14380 в естественной среде. B. Голотип MIMB42268, вид с дорсальной стороны, особь была неЗначительно повреЖдена при сборе. C. Голотип MIMB42268, вид с дорсолатеральной стороны. D. Паратипы MIMB42269, особи были повреЖдены при сборе. МасштабнаЯ линейка: 5 мм. Авторство фотографий: A – Александр Семенов. B–D – АнастасиЯ Майорова.

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FIG. 1 in A new species of the genus Coryphella (Gastropoda: Nudibranchia) from the Kuril Islands

FIG. 1. Maximum likelihood phylogenetic tree of the genus Coryphella based on the concatenated dataset COI+16S+H3+28S. Numbers above branches indicate the posterior probabilities from Bayesian Inference (for PP> 0.95), numbers below branches – bootstrap values from Maximum likelihood (for BS> 60%). Blocks on the right indicate ABGD species delimitation results based on COI dataset. For Coryphella sanamyanae the ABGD analysis was not conducted since this species lacks COI data. РИС. 1. МолекулЯрнофилогенетическое дерево длЯ рода Coryphella, построенное на основании комбинированного выравниваниЯ (COI+16S+H3+28S) методом максимального правдоподобиЯ. ЗначениЯ над ветвЯми обоЗначают апостериорные вероЯтности (> 0.95). ЗначениЯ под ветвЯми обоЗначают поддерЖки бутстрепа (> 60%). Голубые блоки справа обоЗначают реЗультат делимитационного ABGD теста. ДлЯ Coryphella sanamyanae реЗультаты ABGD теста отсутствуют, поскольку последовательности СОI Этого вида недоступны в открытых баЗах данных.

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FIG. 3 in A new species of the genus Coryphella (Gastropoda: Nudibranchia) from the Kuril Islands

FIG. 3. Buccal armature in Coryphella alexanderi sp. nov. A. Holotype MIMB42268, right jaw plate. B. Holotype MIMB42268, masticatory border of jaw plate. C. Holotype MIMB42268, details of denticulation on masticatory border. D. Holotype MIMB42268, radula. E. Holotype MIMB42268, anterior radular potion. F. Holotype MIMB42268, middle radular potion. G. Holotype MIMB42268, posterior radular potion. H. Paratype ZMMU WS14380, radula. I. Paratype ZMMU WS14380, anterior radular portion. K. Paratype ZMMU WS14380, rachidian and lateral teeth. L. Paratype ZMMU WS14380, denticulation of rachidian teeth. Scale bars: A, B, H – 150 µm. B – 100 µm. C – 10 µm. E–G, I–K – 30 µm. FIG. 3. Глоточное вооруЖение Coryphella alexanderi sp. nov. A. Голотип MIMB42268, праваЯ челюстнаЯ пластинка. B. Голотип MIMB42268, ЖевательнаЯ поверхность челюсти. C. Голотип MIMB42268, детали Зубчиков Жевательной поверхности. D. Голотип MIMB42268, радула. E. Голотип MIMB42268, переднЯЯ часть радулы. F. Голотип MIMB42268, среднЯЯ часть радулы. G. Голотип MIMB42268, ЗаднЯЯ часть радулы. H. Паратип ZMMU WS14380, радула. I. Паратип ZMMU WS14380, переднЯЯ часть радулы. K. Паратип ZMMU WS14380, центральный и латеральные Зубы. L. Паратип ZMMU WS14380, особенности ЗаЗубренности центрального Зуба. Масштабные линейки: A, B, H – 150 µм. B – 100 µм. C – 10 µм. E–G, I–K – 30 µм.

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Figura 4. Spurilla braziliana. A in Catálogo de las especies de Nudibranchia (Gastropoda: Heterobranchia) de la Colección de Moluscos del Museo de La Plata, Argentina

Figura 4. Spurilla braziliana. A) Espécimen vivo en ambiente natural. B) Ejemplar conservado. Barra de escala: 10 mm. Figure 4. Spurilla braziliana. A) Live specimen in natural environment. B) Preserved specimen. Scale bar: 10 mm.

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Figura 2 in Catálogo de las especies de Nudibranchia (Gastropoda: Heterobranchia) de la Colección de Moluscos del Museo de La Plata, Argentina

Figura 2. Procedencia geográfica de los ejemplares de Nudibranchia depositados en la Sección Malacológica del Museo de La Plata. Figure 2. Geographical origin of the Nudibranchia specimens deposited in the Malacological Section of the Museo de La Plata.

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Figura 1 in Catálogo de las especies de Nudibranchia (Gastropoda: Heterobranchia) de la Colección de Moluscos del Museo de La Plata, Argentina

Figura 1. Número de ejemplares por familias de Nudibranchia depositados en la Sección Malacológica del Museo de La Plata. Figure 1. Number of specimens by families of Nudibranchia deposited in the Malacological Section of the Museo de La Plata.

Fig. 5 in Molecular and morpho-anatomical assessment of the family Dorididae (Mollusca, Nudibranchia) in the Mediterranean and North-East Atlantic

Fig. 5. Scanning electron micrographs of the radular teeth. A–C. Doris ocelligera (Bergh, 1881) (ZSM20240260). D–F. Doris berghi (Vayssière, 1901) comb. rest. (ZSM20240261). Showing first (fl) and subsequent (cl) lateral teeth.

Fig. 7. A–B in Molecular and morpho-anatomical assessment of the family Dorididae (Mollusca, Nudibranchia) in the Mediterranean and North-East Atlantic

Fig. 7. A–B. Scanning electron micrographs of the radular teeth of Doris verrucosa Linnaeus, 1758, showing first (fl) and subsequent (cl) lateral teeth.

Fig. 6 in Molecular and morpho-anatomical assessment of the family Dorididae (Mollusca, Nudibranchia) in the Mediterranean and North-East Atlantic

Fig. 6. Schematic drawing of the reproductive systems. A. Doris ocelligera (Bergh, 1881). B. Doris berghi (Vayssière, 1901) comb. rest. Abbreviations: A = ampulla; Bc = bursa copulatrix; Fgl = female glands; Ps = penial sheath; R = seminal receptacle; Vd = vas deferens; Vdu = vaginal duct. The black arrowheads represent the connection of the ampulla to the gonad.

Fig. 8 in Molecular and morpho-anatomical assessment of the family Dorididae (Mollusca, Nudibranchia) in the Mediterranean and North-East Atlantic

Fig. 8. Doris marmorata (Risso, 1818). A. Specimen from Blanes, NE Spain (ZSM20240263). B. Specimen from Sant Feliu de Guíxols, NE Spain (ZSMMol20210023).

Fig. 3 in Molecular and morpho-anatomical assessment of the family Dorididae (Mollusca, Nudibranchia) in the Mediterranean and North-East Atlantic

Fig. 3. Results from ASAP for both COI (top) and 16S (bottom) markers of the alignment of the species within the genus Doris Linnaeus, 1758 based on the phylogenetic tree results. Colour boxes refer to species hypotheses and the dash-line is the threshold (representing a 5–10% genetic divergence distance) in which species hypotheses were selected.

Fig. 1 in Molecular and morpho-anatomical assessment of the family Dorididae (Mollusca, Nudibranchia) in the Mediterranean and North-East Atlantic

Fig. 1. Map of the Iberian Peninsula and North-West Africa showing the sampling localities where specimens of Doris ocelligera (Bergh, 1881) were collected. The purple triangles show the locations where the blueish morphotype specimens were taken, whereas the yellow circles show the locations where the yellow morphotype specimens were collected. Map generated at https://www.simplemappr.net

Fig. 4. A. Doris verrucosa Linnaeus, 1758 in Molecular and morpho-anatomical assessment of the family Dorididae (Mollusca, Nudibranchia) in the Mediterranean and North-East Atlantic

Fig. 4. A. Doris verrucosa Linnaeus, 1758 (ZSM20210044) from Thau, SE France. B–E. Doris berghi (Vayssière, 1901) comb. rest. B. Specimen from Sant Feliu de Guíxols, NE Spain (ZSMMol20210024). C. Specimen from Begur, NE Spain (MCZMal395161).D. Specimen from Gran Canaria (ZSM20240262). E. Specimen from Galicia, NW Spain (ZSM20240261). F–H. Doris ocelligera (Bergh, 1881). F. Specimen from l'Escala, NE Spain (MCZ395160). G. Specimen from Sant Feliu de Guíxols, NE Spain (ZSM20240260). H. Specimen from Sant Feliu de Guíxols, NE Spain (ZSM20240259).

Fig. 2 in Molecular and morpho-anatomical assessment of the family Dorididae (Mollusca, Nudibranchia) in the Mediterranean and North-East Atlantic

Fig. 2. Bayesian phylogenetic tree of Dorididae Rafinesque, 1815 based on the concatenated alignment of COI, 16S, and H3 markers. Posterior probabilities and bootstrap support values are shown above and below branches, respectively. The outgroup used to root the tree was the genus Aphelodoris Bergh, 1879. Green dots indicate nodes with maximum branch support in both analyses. The scale bar indicates substitutions per site. Names of the sequences downloaded from GenBank have not been modified, yet taxa that may belong to a different identity are specified between quotation marks. Specimens sequenced in this study are highlighted in bold.

Fig. 14 in Dendrodorididae (Heterobranchia, Nudibranchia) from Persian Gulf with a description of a new species of Doriopsilla and remarks on the family

Fig. 14. Haplotype network of Doriopsilla Bergh, 1880 sequences from the 16S data subset (for the corresponding tree see Supp. file 2: Fig. S3). Coloured nodes on the haplotype network correspond to specific geographic localities and the size of the coloured nodes corresponds to the number of analysed sequences. Hash marks on the haplotype network denote mutational steps.

Fig. 13 in Dendrodorididae (Heterobranchia, Nudibranchia) from Persian Gulf with a description of a new species of Doriopsilla and remarks on the family

Fig. 13. Haplotype network of Doriopsilla Bergh, 1880 sequences from the CO1 data subset (for the corresponding tree see Supp. file 2: Fig. S4). Coloured nodes on the haplotype network correspond to specific geographic localities and the size of the coloured nodes corresponds to the number of available sequences. Hash marks on the haplotype network denote mutational steps.

Fig. 11 in Dendrodorididae (Heterobranchia, Nudibranchia) from Persian Gulf with a description of a new species of Doriopsilla and remarks on the family

Fig. 11. Phylogenetic reconstruction of Dendrodorididae O'Donoghue, 1924 based on16S data set, with Bathydoris aioca Er. Marcus & Ev. Marcus, 1962 and Prodoris clavigera (Thiele, 1912) as outgroup. Terminal taxa at species level partly collapsed (triangles coloured for clarity) and specimen numbers written in brackets. Species in red are newly sequenced in this study. Species more related to the Iranian sequences are mentioned with their localities. Numbers before and after slash indicate approximate likelihood ratio test (SH-aLRT) and bootstrap values for maximum likelihood (ML) respectively. Values less than 50 are removed. Coloured bars indicate species delimitation resulting from ABGD test.

Fig. 9 in Dendrodorididae (Heterobranchia, Nudibranchia) from Persian Gulf with a description of a new species of Doriopsilla and remarks on the family

Fig. 9. Genital system of Doriopsilla aroni sp. nov. A. Highly lobulated prostate gland. B. Transition of penis into penial sheath. C. Detail of penis showing the area, where spines start; note the various shapes. D. Fertilisation chamber containing a few eggs. E. Bursa copulatrix. F. Empty receptaculum seminis in vicinity of bursa copulatrix. Abbreviations: Bc = Bursa copulatrix; Pr = Prostate gland; Rs = Receptaculum seminis; Va = Vaginal duct; Vd = Vas deferens.

Fig. 7 in Dendrodorididae (Heterobranchia, Nudibranchia) from Persian Gulf with a description of a new species of Doriopsilla and remarks on the family

Fig. 7. Histological sections of Doriopsilla aroni sp. nov. A. Cross section of tubercles containing spicules. B. Cross section of the mantle with spicules; two parasites can be seen in the notum tissue. C. Cross section of oesophagus and part of cerebropleural/pedal ganglia with statocyst. D. Cross section of oesophagus and opening of intestine into stomach with pyloric gland. E. Cross section of muscular oesophagus. F. Cross section of highly ciliated and muscular intestine. Abbreviations: Cplg = Cerebropleural ganglion; G = Glandular vesicle containing mucopolysaccharides (stained in violet); GF = Glandular follicles surrounded by muscle layers; In = Intestine; Oe = Oesophagus; P = Parasite; Peg = Pedal ganglion; Pgl = Pyloric gland; Sp = Spicules; St = Statocyst with otoconia.

Fig. 2 in Dendrodorididae (Heterobranchia, Nudibranchia) from Persian Gulf with a description of a new species of Doriopsilla and remarks on the family

Fig. 2. External appearance of live animals. A. Dorsal view of Dendrodoris nigra (W. Stimpson, 1855) with black mantle and yellow spots. B. Dendrodoris nigra with black mantle, white spots, and a thick distinct red submarginal band; inset shows ventral view. C. Dendrodoris fumata (Rüppell & Leuckart, 1830) black form. D. Dendrodoris fumata red form. E. Dendrodoris fumata pale brown form. F. Dorsal view of Doriopsilla aroni sp. nov.; inset shows ventral view.