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FIGURE 9. Scanning electron micrographs. A–E in Glossing over cryptic species: Descriptions of four new species of Glossodoris and three new species of Doriprismatica (Nudibranchia: Chromodorididae)

FIGURE 9. Scanning electron micrographs. A–E. Glossodoris acosti sp. nov., CASIZ-191352, Papua New Guinea: A. Rachis. B. Mid laterals. C. Outer laterals. D. Radula ribbon. E. Jaws. F–J. Glossodoris sp. cf. cincta CASIZ-173394, Madagascar: F. Rachis. G. Mid laterals. H. Outer laterals. I. Radula ribbon. J. Jaws.

FIGURE 1. A–C in Glossing over cryptic species: Descriptions of four new species of Glossodoris and three new species of Doriprismatica (Nudibranchia: Chromodorididae)

FIGURE 1. A–C, Glossodoris buko sp. nov. A. CASIZ-191102 (i. large, ii. small) Papua New Guinea. B. CASIZ-181594 Philippines. C. CASIZ-086381 (A, B) Papua New Guinea. D–F, Glossodoris pallida: D. CASIZ-194338 Madagascar. E. CASIZ-175548 Madagascar. F. CASIZ-175554 Madagascar. Photos: T.M. Gosliner.

FIGURE 3 in Glossing over cryptic species: Descriptions of four new species of Glossodoris and three new species of Doriprismatica (Nudibranchia: Chromodorididae)

FIGURE 3. Scanning electron micrographs. Left column (A–E) Glossodoris buko sp. nov., CASIZ-086381A Papua New Guinea, A. Rachis B. Mid-laterals. CASIZ-191102A Papua New Guinea, C. Outer laterals. D. Jaws. E. Radular ribbon. Right column (F–J) Glossodoris pallida, CASIZ-173395 Madagascar: F. Rachis. G. Mid-laterals. H. Outer laterals. I. Jaws. J. Radular ribbon.

FIGURE 7. Scanning electron micrographs. A–D in Glossing over cryptic species: Descriptions of four new species of Glossodoris and three new species of Doriprismatica (Nudibranchia: Chromodorididae)

FIGURE 7. Scanning electron micrographs. A–D, Glossodoris bonwanga sp. nov., A35516 South Africa: A. Rachis. B. Mid laterals. C. Outer laterals. D. Radula ribbon. E–I, Glossodoris andersonae sp. nov., CASIZ-192288 Saudi Arabia, Red Sea: E. Rachis. F. Mid laterals. G. Outer laterals. H. Radular ribbon. I. Jaws.

FIGURE 8 in Glossing over cryptic species: Descriptions of four new species of Glossodoris and three new species of Doriprismatica (Nudibranchia: Chromodorididae)

FIGURE 8. Reproductive systems, drawing (left)/photograph (right). A, B. Glossodoris bonwanga sp. nov., A35516 South Africa. C, D. Glossodoris andersonae CASIZ-192288 Saudi Arabia, Red Sea. E, F. Glossodoris acosti sp. nov., CASIZ- 191352 Papua New Guinea. G, H (buccal bulb), I. Glossodoris sp. cf. cincta CASIZ-177257 Philippines.

FIGURE 6. A in Glossing over cryptic species: Descriptions of four new species of Glossodoris and three new species of Doriprismatica (Nudibranchia: Chromodorididae)

FIGURE 6. A. Glossodoris bonwanga sp. nov., CASIZ-194018 Madagascar, Photo: Marina Poddubetskaia. B. Glossodoris andersonae sp. nov., CASIZ-192288 Saudi Arabia, Red Sea, Photo: T.M. Gosliner. C. Glossodoris acosti sp. nov., CASIZ- 191352 Papua New Guinea, Photo: V. Knutson. D. Glossodoris acosti sp. nov., CASIZ-175327 Philippines, Photo: T.M. Gosliner. E. Glossodoris sp. cf. cincta, CASIZ-173394 Madagascar, Photo: T.M. Gosliner. F. Glossodoris sp. cf. cincta, CASIZ-177257 Philippines, Photo: T.M. Gosliner.

FIGURE 2. Mantle margins. A in Glossing over cryptic species: Descriptions of four new species of Glossodoris and three new species of Doriprismatica (Nudibranchia: Chromodorididae)

FIGURE 2. Mantle margins. A. Glossodoris buko sp. nov., CASIZ-222107. B. Glossodoris pallida (Cuvier, 1804), CASIZ- 175554. C. Glossodoris bowanga sp. nov., CASIZ-194204, photo by Marina Poddubetskaia. D. Glossodoris andersonae sp. nov., CASIZ-192288. E. Glossodoris acosti sp. nov., CASIZ 191352, photo by Vanessa Knutson. F. Glossodoris sp. cf. cincta, CASIZ-199204. G. Glossodoris cincta Bergh, 1888, from Reunion, photo only, photo by Philibert Bidgrain. H. Doriprismatica balut sp. nov., CASIZ-182787. I. Doriprismatica rossi sp. nov. CASIZ-192281. J. Doriprismatica marinae sp. nov. CASIZ- 194050, Marina Poddubetskaia, all other photos by. T. Gosliner.

FIGURE 5 in Glossing over cryptic species: Descriptions of four new species of Glossodoris and three new species of Doriprismatica (Nudibranchia: Chromodorididae)

FIGURE 5. Phylogenetic tree (Matsuda & Gosliner 2017) with ABGD partitions (colored bars) and p-distances. Values listed are Bayesian Inference posterior probabilities/Maximum Likelihood bootstraps/Maximum Parsimony bootstraps.

FIGURE 6 in The genus Zelentia is an amphi-boreal taxon expanded to include three new species from the North Pacific and Atlantic oceans (Gastropoda: Nudibranchia: Trinchesiidae)

FIGURE 6. Zelentia pustulata (Alder & Hancock, 1854), A. Living animal, White Sea, Cape Kartesh, 15–20 m, dorsal view; B. Same specimen, ventral view; C. Fixed animal, White Sea, Rugozerskaya Guba, 10–20 m depth, dorsal view; D. Living specimen, Achill Island, Ireland, 25 m, dorsal view; E. Same specimen, ventral view; F. Jaw, specimen from Rugozerskaya Guba, SEM; G. Radular teeth, anterior part, White Sea, Cape Kartesh, SEM; H. Radular teeth, anterior part, Ireland, SEM; I. Radular teeth, specimen from Rugozerskaya Guba, SEM, posterior part; J. Same specimen, posterior part of radula towards middle part; K. Same specimen, anterior part; L. Stylet, specimen from Ireland, SEM; M. Penis with stylet, specimen from Rugozerskaya Guba, SEM; N. Penis with stylet, close up, same specimen, SEM; Scale bars: F—300 µm, G—10 µm, H—10 µm, I–L—30 µm, M—100 µm, N—30 µm. Photos: (A–B) Tatiana Korshunova; (C) Alexander Martynov; (D–E) Bernard Picton. SEM: Alexander Martynov (F–M).

FIGURE 7. Reproductive systems. A in The genus Zelentia is an amphi-boreal taxon expanded to include three new species from the North Pacific and Atlantic oceans (Gastropoda: Nudibranchia: Trinchesiidae)

FIGURE 7. Reproductive systems. A. Zelentia willowsi sp. nov. B. Zelentia nepunicea sp. nov. C. Zelentia roginskae sp. nov. D. Zelentia pustulata. Abbreviations: a, ampulla; fgm, female gland mass; fo, female opening; p, penis; pg, "penial" (supplementary) gland; pr, prostate, rsd, distal receptaculum seminis. Scale bars: 0.5 mm.

FIGURE 5 in The genus Zelentia is an amphi-boreal taxon expanded to include three new species from the North Pacific and Atlantic oceans (Gastropoda: Nudibranchia: Trinchesiidae)

FIGURE 5. Zelentia roginskae sp. nov., A–D, F–M Holotype ZMMU Op-624, living animal, 17 mm length, White Sea, Cape Kartesh, 18 m depth. A. Dorsal view (holotype); B. Anterior frontal view (holotype). C. Anterior left lateral view (holotype). D. Ventral view (holotype); E. Living specimen, Maine (not collected); F. Egg mass in situ; G. Jaws (holotype); H. Masticatory processes of jaws (holotype); I. Radular teeth, posterior part, general view (holotype); J. Radular teeth, posterior part, details (holotype); K. Radular teeth, anterior part (holotype). L. Penis with stylet (holotype). M. Penis with stylet, close up (holotype). Scale bars: H, M—10 µm, E—50 µm, G—200 µm, J–L—20 µm, I—100 µm. Photos: (A–D) Tatiana Korshunova, (E) Timur Kholodenko, SEM: Alexander Martynov (G–K).

FIGURE 4 in The genus Zelentia is an amphi-boreal taxon expanded to include three new species from the North Pacific and Atlantic oceans (Gastropoda: Nudibranchia: Trinchesiidae)

FIGURE 4. Zelentia nepunicea sp. nov., A, C, D–F Holotype ZMMU Op-626, living animal, 12 mm length, British Columbia, Galiano Island, 20 m depth. B, G–L Paratype ZMMU Op-627, living animal, 10 mm length, Washington, Port Orchard, 14 m depth. A. Dorsal view (holotype); B. Dorsal view (paratype); C. Jaws (holotype); D. Masticatory processes of jaws (holotype); E. Radular teeth, posterior part, general view (holotype). F. Radular teeth, posterior part, details (holotype). G. Jaws (paratype); H. Masticatory process of jaws (paratype); I. Radular teeth, posterior part (paratype); J. Radular teeth, posterior part towards middle part (paratype); K. Penis with stylet, close up (paratype). L. Penis with stylet (paratype). Scale bars: C, L—100 µm, D, K—10 µm, E—50 µm, G—200 µm, F, H—20 µm, I, J—30 µm, L—100 µm. Photos: (A–B) Karin Fletcher, SEM: Alexander Martynov (C–L).

FIGURE 3 in The genus Zelentia is an amphi-boreal taxon expanded to include three new species from the North Pacific and Atlantic oceans (Gastropoda: Nudibranchia: Trinchesiidae)

FIGURE 3. Zelentia willowsi sp. nov., A, I Holotype ZMMU Op-628, living animal, 7.5 mm length, Port Orchard, 10 m depth and radula. B, D. Paratype, ZMMU Op-631, living animal, 7 mm length (live), same locality. C, E. Paratype, ZMMU Op-629, living animal, 6.5 mm length, same locality. F, G, H, J. Paratype, ZMMU Op-632, same locality, 7.5 mm length (live), details of internal morphology. A. Living specimen; B. Ventral view; C. Dorsal view; D. Anterior view; E. Living specimen on hydroids with egg mass; F. Jaws, SEM; G. Masticatory processes of jaws, light microscopy; H. Radular teeth, posterior part; I. Radular teeth, anterior part towards middle part, SEM; J. Penis with slightly curved stylet (SEM) with inserted smaller light microscopy image (indicated by arrow). Scale bars: F—100 µm, H, J—20 µm, I—10 µm. Photos: Karin Fletcher (A–E); G, Alexander Martynov. SEM: Alexander Martynov (F, H–J).

FIGURE 2 in The genus Zelentia is an amphi-boreal taxon expanded to include three new species from the North Pacific and Atlantic oceans (Gastropoda: Nudibranchia: Trinchesiidae)

FIGURE 2. The haplotype network based on concatenated molecular data (COI + 16S) showing genetic mutations occurring within Zelentia species.

FIGURE 1 in The genus Zelentia is an amphi-boreal taxon expanded to include three new species from the North Pacific and Atlantic oceans (Gastropoda: Nudibranchia: Trinchesiidae)

FIGURE 1. Phylogenetic relationships of Zelentia based on COI + 16S + H3 concatenated dataset inferred by Bayesian inference. Numbers above branches represent posterior probabilities from BI; numbers below branches indicate bootstrap values for Maximum Likelihood. Abbreviations: CPO, Canada, Pacific Ocean; BS, Barents Sea; IS, Irish Sea; MAO, Maine, Atlantic Ocean; NEAO, Northeastern Atlantic Ocean; UPO, USA, Pacific Ocean; WS, White Sea.

FIGURE 13 in Description of a new Moridilla species from North Sulawesi, Indonesia (Mollusca: Nudibranchia: Aeolidioidea) - based on MicroCT, histological and molecular analyses

FIGURE 13. Maximum Likelihood tree of the concatenated full data set of H3, 16S and COI sequence data. Some clades are collapsed to condense information. Note the lack of resolution for most facelinid groups. Diamonds help visualize Moridilla and Noumeaella clades.

FIGURE 9 in Description of a new Moridilla species from North Sulawesi, Indonesia (Mollusca: Nudibranchia: Aeolidioidea) - based on MicroCT, histological and molecular analyses

FIGURE 9. Moridilla jobeli sp. nov.: Genital system; A, C–F based on paratype SRU20190001; B based on paratype MZB. Gst.21.593. (A) Gonad of juvenile specimen with exclusively spermatogonians. (B) Ovotestis of adult animal with oogonians peripheral and spermatogonians centrally (µ-CT). (C) Several cross sections of ampulla. (D) Vas deferens with prostatic part (arrow) and penis in penial sheath (arrowhead). (E) Receptaculum seminis. (F) Cross section of genitalia. Abbrevations: am, ampulla; rs, receptaculum seminis; ng, nidamental gland.

FIGURE 12 in Description of a new Moridilla species from North Sulawesi, Indonesia (Mollusca: Nudibranchia: Aeolidioidea) - based on MicroCT, histological and molecular analyses

FIGURE 12. Maximum Likelihood tree of reduced data set of concatenated COI and 16S sequence data. Results of species delimitation tests of COI data with ABGD and bPTP tests, as well as 16S data with bPTP test depicted on the right side. Specimen numbers sp. 1 to sp. 9 refer to undescribed species, all listed as Noumeaella sp. in GenBank (also see Table 2). Stars indicate bootstrap values higher 90. (A) Moridilla jobeli sp. nov. (second paratype SRU20190001); (B) Moridilla sp. (SRU2017/01/Nosp1-17Ba-1); (C) Moridilla fifo; (D) Moridilla hermanita; (E) Moridilla brockii (C and D after Carmona & Wilson 2018; E after Gosliner et al. 2015)

FIGURE 8 in Description of a new Moridilla species from North Sulawesi, Indonesia (Mollusca: Nudibranchia: Aeolidioidea) - based on MicroCT, histological and molecular analyses

FIGURE 8. Moridilla jobeli sp. nov.: Digestive system of paratype SRU20190001. (A) Digestive gland in cerata. (B) Cnidosac in one ceras; note the three parts of the sac are one sac winding as a tube in the tip of the ceras. (C) Typhlosole (arrow) in first part of intestine. (D) Anus and anal papilla.

FIGURE 10 in Description of a new Moridilla species from North Sulawesi, Indonesia (Mollusca: Nudibranchia: Aeolidioidea) - based on MicroCT, histological and molecular analyses

FIGURE 10. Moridilla jobeli sp. nov.: Anatomy of paratype SRU20190001. (A) Pericard with auricle (arrowhead) and ventricle (star). (B) Syrinx opening in pericard (arrow). (C) Eye on right side. (D) Statocyst on right side with otoconia (arrow head); arrows indicating epithelium of digestive gland when branching from stomach and composed of specialized vacuolated cells.