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Fig. 2 in Two new species of Willowsia (Collembola: Entomobryidae) from Yunnan Province, China

Fig. 2. Willowsia baoshanensis sp. nov. A. Apex of Ant. IV. B. Dorsal chaetotaxy of head. C. Labrum. D. Lateral process of labial palp. E. Labium. F. Chaetotaxy of Th. II−III. G. Trochanteral organ. H. Hind foot complex. I. Chaetotaxy of Abd. I−III. Scale bars: A, C–E, G–H = 15 μm; B, F, I = 50 μm.

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Fig. 1 in Two new species of Willowsia (Collembola: Entomobryidae) from Yunnan Province, China

Fig. 1. Willowsia baoshanensis sp. nov. A−C. Habitus (A, C = paratypes; B = holotype) Scale bars: 500 μm.

Fig. 11 in Taxonomic review of the tree snail genus Amphidromus Albers, 1850 (Pulmonata: Camaenidae) in Laos, with the description of two new species

Fig. 11. Genitalia of Amphidromus (Syndromus) spp. A–B. Amphidromus areolatus (Pfeiffer, 1861) from Thad Fek, Attapeu, Laos showing the reproductive system and interior structures of the penis and vaginal chamber (CUMZ 7023). C–D. Amphidromus flavus (Pfeiffer, 1861) from Ban Na Deauy, Luang Phrabang, Laos showing the general characteristics of the genital system and the interior structures of the penis, atrium and vagina chamber (CUMZ 7027).

Fig. 12 in Taxonomic review of the tree snail genus Amphidromus Albers, 1850 (Pulmonata: Camaenidae) in Laos, with the description of two new species

Fig. 12. SEM images of the radula. A–C. Amphidromus flavus (Pfeiffer, 1861) from Ban Na Deauy, Luang Phrabang, Laos (CUMZ 7027). D–F. Amphidromus xiengensis Morlet, 1891 from Ban Na Deauy, Luang Phrabang, Laos (CUMZ 7037). G–I. Amphidromus fuscolabris Möllendorff, 1898 from Ban Phone, Sekong, Laos (CUMZ 7041). A, D, G = central tooth with the first to fifth or sixth lateral teeth; B, E, H = lateral teeth with the tricuspid marginal teeth transition; C, F, I = outermost marginal teeth. Numbers indicate the order of the lateral and marginal teeth. Central tooth indicated by 'C'.

Fig. 10 in Taxonomic review of the tree snail genus Amphidromus Albers, 1850 (Pulmonata: Camaenidae) in Laos, with the description of two new species

Fig. 10. Shells of Amphidromus (Syndromus) spp. A−C. Amphidromus areolatus (Pfeiffer, 1861) from Thad Fek, Attapeu, Laos (CUMZ 7022). D. Amphidromus begini (Morlet, 1886), syntype from Strung- Trang, Cambodia (MNHN-IM-2000-1832). E-G. Amphidromus flavus (Pfeiffer, 1861) from Tam Pou Kham, Vientiane, Laos (CUMZ 7029). H. Amphidromus flavus var. "indistinctus" Pilsbry, 1900, holotype (ANSP 31486). I–K. Amphidromus flavus var. "tryoni" Pilsbry, 1900. I. Lectotype (ANSP 31488). J. Paralectotype (ANSP 252745). K. Specimen from Ban Na Deauy, Luang Phrabang, Laos (CUMZ 7026). L–M. Amphidromus semitessellatus (Morlet, 1884). L. Lectotype (MNHN-IM-2000-1985). M. Specimen from Cambodia (NHMUK).

Fig. 3 in Taxonomic review of the tree snail genus Amphidromus Albers, 1850 (Pulmonata: Camaenidae) in Laos, with the description of two new species

Fig. 3. Aestivation sites of Amphidromus species. A–B. Amphidromus roseolabiatus Fulton, 1896 (shell height about 34 mm) from NamTurn Bridge, Bolikhamxay, Laos, aestivated. A. Inside sterile fronds of stag horn ferns, Platycerium Desv. B. In a small hole on a Jackfruit tree trunk, Artocarpus heterophyllus Lam., with other snails, Quantula Baker, 1941 and Durgella Blanford, 1863. C. Amphidromus givenchyi Geret, 1912 (shell height about 43 mm), hiding in a small hole of a dipterocarpus tree shell. D. Amphidromus syndromoideus sp. nov. (shell height about 28 mm) from the type locality, hiding in a hole of a tree, visible after removal of clusters of sterile fronds of the basket fern Drynaria (Bory) J. Sm.

Fig. 2. Living snails. A–B. Amphidromus roseolabiatus Fulton, 1896. A in Taxonomic review of the tree snail genus Amphidromus Albers, 1850 (Pulmonata: Camaenidae) in Laos, with the description of two new species

Fig. 2. Living snails. A–B. Amphidromus roseolabiatus Fulton, 1896. A. Typical form from Ban Phavong, Khammouan, Laos (CUMZ 7012). B. Form with white lip from Tam Mung Korn, Bolikhamxay, Laos (CUMZ 7005). C. Amphidromus givenchyi Geret, 1912 from Thad Lor Waterfall, Salavan, Laos (CUMZ 7018). D. Amphidromus syndromoideus sp. nov., holotype from the type locality (CUMZ 7019).

Fig. 14 in Taxonomic review of the tree snail genus Amphidromus Albers, 1850 (Pulmonata: Camaenidae) in Laos, with the description of two new species

Fig. 14. Genitalia of Amphidromus (Syndromus) spp. A–B. Amphidromus xiengensis Morlet, 1891 from Luang Phrabang showing the reproductive system and interior structures of the penis and vaginal chamber (CUMZ 7035). C–D. Amphidromus fuscolabris Möllendorff, 1898 from Ban Phone, Sekong, Laos showing the general characteristics of the genital system and the interior structures of the penis, atrium and vaginal chamber (CUMZ 7041).

Fig. 9 in Taxonomic review of the tree snail genus Amphidromus Albers, 1850 (Pulmonata: Camaenidae) in Laos, with the description of two new species

Fig. 9. Living snails of Amphidromus (Syndromus) spp. A. Amphidromus areolatus (Pfeiffer, 1861) from Thad Fek, Attapeu, Laos (CUMZ 7023). B. Amphidromus flavus (Pfeiffer, 1861) from Ban Na Deauy, Luang Phrabang, Laos (CUMZ 7027). C–D. Amphidromus xiengensis Morlet, 1891 from Thad Kacham, Luang Phrabang, Laos (CUMZ 7035), the typical form, and var. "multifasciata" Fulton, 1896, respectively. E–F. Amphidromus fuscolabris Möllendorff, 1898 from Ban Phone, Sekong, Laos (CUMZ 7041–7042). E. Typical color form. F. Monochrome yellowish color form.

Fig. 13 in Taxonomic review of the tree snail genus Amphidromus Albers, 1850 (Pulmonata: Camaenidae) in Laos, with the description of two new species

Fig. 13. Shells of Amphidromus (Syndromus) spp. A−C. Amphidromus xiengensis Morlet, 1891. A. Lectotype (MNHN-IM-2000-5249). B. Specimen from Thailand (CUMZ 7050). C. Specimen from Tam Chiang Dao, Chiangmai, Thailand (CUMZ 7034). D−F. Amphidromus xiengensis var. "clausus" Pilsbry, 1900. D. Lectotype (ANSP 31496). E. Specimen from Ban Na Deauy, Luang Phrabang, Laos (CUMZ 7036). F. Specimen from Pha Tang, Prayao, Thailand (CUMZ 7052). G–H. Amphidromus xiengensis var. "multifasciata" Fulton, 1896 from Phu Nang National Park, Phayao, Thailand (CUMZ 7038). I−M. Amphidromus fuscolabris Möllendorff, 1898. I. Holotype (SMF 7641). J−M. Specimens from Ban Phon, Sekong, Laos (CUMZ 7041–7042). N. Amphidromus eudeli Ancey, 1897, syntype from Binh Dinh, Annam (RBINS 617427). O–P. Amphidromus haematostoma Möllendorff, 1898. O. Lectotype (SMF 7559). P. Paralectotype (SMF 7560). Q–R. Amphidromus haematostoma var. "varians" Möllendorff, 1898. Q. Lectotype (SMF 7561). R. Paralectotype (SMF 7562). S–T. Amphidromus xiengkhaungensis sp. nov. S. Holotype (CUMZ 7045). T. Paratype (CUMZ 7046).

Fig. 6 in Taxonomic review of the tree snail genus Amphidromus Albers, 1850 (Pulmonata: Camaenidae) in Laos, with the description of two new species

Fig. 6. Genitalia of Amphidromus spp. A–B. Amphidromus roseolabiatus Fulton, 1896 from Ban Phavong, Khammouan, Laos showing reproductive system and interior structures of penis and vaginal chamber (CUMZ 7012). C–D. Amphidromus syndromoideus sp. nov., holotype, showing general characteristics of the genital system and interior structures of penis and vagina chamber (CUMZ 7019).

Fig. 7 in Taxonomic review of the tree snail genus Amphidromus Albers, 1850 (Pulmonata: Camaenidae) in Laos, with the description of two new species

Fig. 7. SEM images of the radula. A–C. Amphidromus roseolabiatus Fulton, 1896 from Ban Phavong, Khammouan, Laos (CUMZ 7012). D–F. Amphidromus syndromoideus sp. nov., holotype (CUMZ 7019). G–I. Amphidromus areolatus (Pfeiffer, 1861) from Thad Fek, Attapue, Laos (CUMZ 7023). A, D, G = central tooth with the first to fifth to eighth lateral teeth; B, E, H = lateral teeth with the tricuspid marginal teeth transition; C, F, I = outermost marginal teeth. Numbers indicate the order of the lateral and marginal teeth. Central tooth indicated by 'C'.

Fig. 5 in Taxonomic review of the tree snail genus Amphidromus Albers, 1850 (Pulmonata: Camaenidae) in Laos, with the description of two new species

Fig. 5. Shells of Amphidromus pervariabilis Bavay & Dautzenberg, 1909. A–B. Syntype of the nominotypical form (MNHM-IM-2000-2049). C. Var. "bifasciata" Bavay & Dautzenberg, 1909, syntype (MNHM-IM-2000-2059). D. Var. "goniostoma" Bavay & Dautzenberg, 1909, syntype (MNHM- IM-2000-2058). E. Var. "lilacina" Bavay & Dautzenberg, 1909, syntype (MNHM-IM-2000-2052). F. Var. "minor" Bavay & Dautzenberg, 1909, syntype (MNHM-IM-2000-2050). G. Var. "monozonalis" Bavay & Dautzenberg, 1909, syntype (MNHM-IM-2000-2057). H. Var. "obesa" Bavay & Dautzenberg, 1909, syntype (MNHM-IM-2000-2053). I. Var. "protracta" Bavay & Dautzenberg, 1909, syntype (MNHM-IM-2000-2051). J. Var. "tricolor" Bavay & Dautzenberg, 1909, syntype (MNHM- IM-2000-2054). K–L. Specimens from Khua District, Phongsaly, Laos (CUMZ 7014).

Fig. 4 in Two new species of freshwater crabs from the highlands of northern Uganda, East Africa and a redescription of Potamonautes amalerensis (Rathbun, 1935) stat. rev. from Mount Kadam (Brachyura: Potamoidea: Potamonautidae)

Fig. 4. Potamonautes imatongensis sp. nov., holotype, adult Ƌ, CW 21.5 mm, from the Imatong Mountains in northern Uganda (NHM 1955.11.8.26–27). A. Whole animal, dorsal view. B. Frontal view. C. Ventral view, anterior sternum. Scale bars: 21.4 mm.

Fig. 8 in Two new species of freshwater crabs from the highlands of northern Uganda, East Africa and a redescription of Potamonautes amalerensis (Rathbun, 1935) stat. rev. from Mount Kadam (Brachyura: Potamoidea: Potamonautidae)

Fig. 8. Distribution map showing the known localities of Potamonautes imatongensis sp. nov. (black circles, not shown to scale), Potamonautes morotoensis sp. nov. (black star, not shown to scale) and Potamonautes amalerensis (Rathbun, 1935) stat. rev. (black squares, not shown to scale) in Uganda. East Africa. For exact localities see text.

opencc-by-4.0May 2020View details →

Video S1. Two Ocean Pass South of Yellowstone National Park, Wyoming

Video S1. Two Ocean Pass South of Yellowstone National Park, Wyoming. Two Ocean Pass connects the headwaters of the Atlantic and Pacific drainages in the Bridger-Teton Wilderness of Wyoming south of Yellowstone National Park. Here, a broad alpine meadow straddles the Continental Divide at 2,478 m elevation, and headwaters of the Columbia and Missouri drainages originate from a single perennial stream; North Two Ocean Creek flows along the Continental Divide and branches into Pacific Creek, a Snake River tributary flowing to the west, and Atlantic Creek, a Yellowstone River tributary flowing to the east. The pass is a nearly level meadow near the center of which is a marsh that becomes a small lake in times of wet weather or snowmelt runoff. No barrier prevents the movement and mixing of fish between Pacific Creek and Atlantic Creek. Following glacial recession from the region about 14,000 years ago, ancestral Yellowstone cutthroat trout colonized the Yellowstone River drainage from sources in the lower Snake River drainage over Two Ocean Pass. They dispersed downstream and were the only trout inhabiting Yellowstone Lake for thousands of years prior to the establishment of Yellowstone National Park. The watershed of the Yellowstone River upstream of Yellowstone Lake, including Two Ocean Pass, is among the most remote in the contiguous United States and lies largely within protected federal wilderness. In July 2019, Yellowstone National Park and Wyoming Game and Fish Department biologists, with assistance from Wyoming Trout Unlimited and the Wyoming Storer Foundation, sampled environmental DNA in the connected waters near Two Ocean Pass. The sampling was conducted to determine if invasive lake trout or other nonnative fish were present, and could thereby colonize the Yellowstone River basin in the past or future and threaten native cutthroat trout of Yellowstone Lake.

Fig. 1. A–B in Two new species of freshwater crabs from the highlands of northern Uganda, East Africa and a redescription of Potamonautes amalerensis (Rathbun, 1935) stat. rev. from Mount Kadam (Brachyura: Potamoidea: Potamonautidae)

Fig. 1. A–B. Potamonautes imatongensis sp. nov., holotype, adult Ƌ, CW 21.5 mm, from the Imatong Mountains in northern Uganda (NHM 1955.11.8.26-27). A. Carapace, dorsal view. B. Carapace, frontal view. — C–D. Potamonautes morotoensis sp. nov., holotype, adult Ƌ, CW 26 mm, from Mount Moroto in northern Uganda (NHM 2015.3056). C. Carapace, dorsal view. D. Carapace, frontal view. — E–F. Potamonautes amalerensis (Rathbun, 1935) stat. rev., holotype, adult Ƌ, CW 31.5 mm, from Mount Kadam, northern Uganda (MCZ 8238). E. Carapace, dorsal view. F. Carapace, frontal view. Scale bar: A–B = 6.3 mm; C–D = 7.3 mm; E–F = 9.1 mm.

Fig. 5 in Two new species of freshwater crabs from the highlands of northern Uganda, East Africa and a redescription of Potamonautes amalerensis (Rathbun, 1935) stat. rev. from Mount Kadam (Brachyura: Potamoidea: Potamonautidae)

Fig. 5. Potamonautes morotoensis sp. nov., holotype, adult Ƌ, CW 26 mm, from Mount Moroto in northern Uganda (NHM 2015.3056). A. Whole animal, dorsal view. B. Frontal view. C. Ventral view, anterior sternum. Scale bars: 21.4 mm.

Fig. 6 in Two new species of freshwater crabs from the highlands of northern Uganda, East Africa and a redescription of Potamonautes amalerensis (Rathbun, 1935) stat. rev. from Mount Kadam (Brachyura: Potamoidea: Potamonautidae)

Fig. 6. Potamonautes amalerensis (Rathbun, 1935) stat. rev. A, C. Holotype, adult Ƌ, CW 31.5 mm, from Mount Kadam, northern Uganda (MCZ 8238). B. Adult Ƌ, CW 31.5 mm, from north side of Mt. Kadam northern Uganda (NMU TRW 1962.04). A. Whole animal, dorsal view. B. Frontal view.