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Рис. 3. Фиксированные Этанолом половоЗрелые Meghimatium bilineatum иЗ бассейна Среднего Амура (вид со спины). МасШтабнаЯ линейка – 1 см. Фото Л.А. ПроЗоровой. in First record of the rare slug species Meghimatium bilineatum (Benson, 1842) (Gastropoda: Eupulmonata: Philomycidae) in the Jewish Autonomous Region (Middle Amur basin)

Рис. 3. Фиксированные Этанолом половоЗрелые Meghimatium bilineatum иЗ бассейна Среднего Амура (вид со спины). МасШтабнаЯ линейка – 1 см. Фото Л.А. ПроЗоровой.

opencc-by-4.0Nov 2017View details →

Fig. 2 in Expansion of an invasive pest slug, Deroceras caucasicum (Simroth, 1901) in Primorsky Krai during 1996-2016

Fig. 2. Distribution of pest slug Deroceras caucasicum near the boundaries of the Ussuriysky Nature Reserve (Primorsky Krai). Invaded areas are shown with heavy red lines and red dots.

FIGURE 5 in Heterobranch Sea Slugs from Hazard Canyon Reef, San Luis Obispo County, California

FIGURE 5. (A) Change in relative prevalence of southern species of heterobranchs at Hazard Canyon Reef, with yearly mean of the Multivariate ENSO Index, v.2 (MEI), 1999–2021. Relative prevalence of southern species calculated as the proportion of southern species found each year out of the total number of southern species (n = 23) found throughout the entire study, minus the same proportion calculated each year for northern species (also n = 23). (B) Bimonthly values of the MEI. Positive values are shown in red, clusters of which indicate El Niño events of differing strength, and negatives values in blue, indicating La Niña events of varying strength. Values between 0.5 and –0.5 are considered ENSO neutral.

FIGURE 4 in Heterobranch Sea Slugs from Hazard Canyon Reef, San Luis Obispo County, California

FIGURE 4. Seasonal variation in abundance and egg-laying activity of 10 of the 15 most abundant heterobranchs at Hazard Canyon Reef, 1999–2021. Values shown are means ± 1 SE of monthly number of individuals per hour per observer (n = 8, 21, 3, 15 for winter, spring, summer, fall, respectively). Black bars at top of graphs indicate egg masses were observed at least once in a given season.

FIGURE 1 in Heterobranch Sea Slugs from Hazard Canyon Reef, San Luis Obispo County, California

FIGURE 1. Map showing location of Hazard Canyon Reef between Morro Bay and Point Buchon, San Luis Obispo County, California.

FIGURE 2 in Heterobranch Sea Slugs from Hazard Canyon Reef, San Luis Obispo County, California

FIGURE 2. Hazard Canyon Reef. (A) Study site (outlined in white), looking northwest, 23 November 2011, -0.33 m tide, with a building ocean swell. The crevice forming the slender extension of the study area visible here is about 25 m long. (B) At northwestern-most part of study area, 26 May 2017, tide level at -0.46 m.

FIGURE 6 in Heterobranch Sea Slugs from Hazard Canyon Reef, San Luis Obispo County, California

FIGURE 6. Yearly change in abundance of the most abundant nudibranchs at Hazard Canyon, 2005–2021. (A) three northern species, and (B) three southern taxa. Values shown are yearly means +- 1 SE of monthly number of individuals per hour per observer; note separate, logarithmic axis in (B) for Okenia rosacea. In (B) Doriopsilla spp. = D. albopunctata and D. fulva, which combined were considered D. albopunctata until delineated by Hoover et al. (2015).

opencc-by-4.0Dec 2016View details →

Fig. 1 in Distribution Of "Spanish Slug" Arion Lusitanicus Auct. Non Mabille 1868 (Or Arion Vulgaris Moquin-Tandon, 1855) (Gastropoda: Arionidae) In Latvia

Fig. 1. Confirmed localities of Arion lusitanicus auct. non J. Mabille 1868 in Latvia during 2009 - 2016 (map drawn by M. Nitcis). Full name of places are given in Table 1.

FIGURE 3 in Heterobranch Sea Slugs from Hazard Canyon Reef, San Luis Obispo County, California

FIGURE 3. Seasonal variation at Hazard Canyon Reef in (A) number of species of Heterobranchia found per month, and (B) total number of individuals of Heterobranchia found per observer per hour. Values shown are means ± 1 SE of monthly data averaged by season across all years sampled (n = 8, 21, 3, 15 for winter, spring, summer, fall, respectively)..

FIGURE 8 in The Sea Slug Phanerophthalmus luteus (Gastropoda: Opisthobranchia) and its Habitat and Ecology at the Marine Jellyfish Lake (Ongeim'l Tketau), Palau, Western Pacific Ocean

FIGURE 8. Central and Western Pacific showing the distribution of Phanerophthalmus luteus (black stars) and the location of Jellyfish Lake, Palau (large gray star). Modified from distribution map for P. luteus in Austin, Gosliner, and Malaquias (2018, fig. 23).

FIGURE 5 in The Sea Slug Phanerophthalmus luteus (Gastropoda: Opisthobranchia) and its Habitat and Ecology at the Marine Jellyfish Lake (Ongeim'l Tketau), Palau, Western Pacific Ocean

FIGURE 5. Hydrography of Jellyfish Lake. The water column is divided into an oxic and an anoxic zone by a bacterial plate that creates a chemo- and thermocline. The bacteria absorb all the light and digest most of the vegetation (except larger branches). No foraminifera or animals are known to live below the bacterial plate due to the absence of oxygen in the water column. Phanerophthalmus luteus is restricted to the upper 3 to 10 m in the oxygenated part of the water column; they are most abundant between 4.5 and 7.6 m. Figure modified from Venkateswaran et al. (1993) by adding the depth distribution of P. luteus.

FIGURE 4 in The Sea Slug Phanerophthalmus luteus (Gastropoda: Opisthobranchia) and its Habitat and Ecology at the Marine Jellyfish Lake (Ongeim'l Tketau), Palau, Western Pacific Ocean

FIGURE 4. Bathymetry of Jellyfish Lake, Mecherchar Island. The gray line with arrows indicates the area in the lake of our marine survey to 10 m deep for sea slugs along the north and east sides of the lake. Black circles indicate the transect and collecting stations for foraminifera used to estimate the depth distribution of Phanerophthalmus luteus. Map and transect from Lipps and Langer 1999.

FIGURE 3 in The Sea Slug Phanerophthalmus luteus (Gastropoda: Opisthobranchia) and its Habitat and Ecology at the Marine Jellyfish Lake (Ongeim'l Tketau), Palau, Western Pacific Ocean

FIGURE 3. Vegetation of Jellyfish Lake, Mecherchar Island. A. The lake, slightly less than 400 m long, is in a hole at least 230 m deep (150 to 200 m from the top of the hole to the Lake's surface and 30 m to the bottom of the lake) in the Miocene limestone. North is at the top of the image. B. Dense terrestrial vegetation, including mangroves at the lake edges, hangs over the lake. The surrounding vegetation contributes organic debris to the lake. C. Bottom of the lake from 0 to 13 m is covered with plant debris and algal growth. Photograph is at 2 m deep looking down slope. D. One of many logs that have fallen into the lake and are now inhabited by a wide variety of algae and animals including P. luteus. View is down the log from a depth of about 0.5 m. Credits: A. Aerial photograph courtesy of Dr. Pat Colin. B.-D. Photographs by Jere H. Lipps, 2013.

FIGURE 7 in The Sea Slug Phanerophthalmus luteus (Gastropoda: Opisthobranchia) and its Habitat and Ecology at the Marine Jellyfish Lake (Ongeim'l Tketau), Palau, Western Pacific Ocean

FIGURE 7. Egg masses (more or less spherical to oblong white objects) of Phanerophthalmus luteus attached to filamentous and other algae on a slope in Jellyfish Lake. Photograph taken November 16, 2009, courtesy of Lori J. Bell.

Fig. 4 in First record of the rare slug species Meghimatium bilineatum (Benson, 1842) (Gastropoda: Eupulmonata: Philomycidae) in the Jewish Autonomous Region (Middle Amur basin)

Fig. 4. Ethanol preserved Meghimatium bilineatum from the Middle Amur basin (side view): А – mature brightly colored specimen, В – young light-colored specimen. Scale bar – 1 cm. Photo by L.A. Prozorova.

Fig. 1 in First record of the rare slug species Meghimatium bilineatum (Benson, 1842) (Gastropoda: Eupulmonata: Philomycidae) in the Jewish Autonomous Region (Middle Amur basin)

Fig. 1. Locations of the slug Meghimatium bilineatum in the Russian Far East. A new locality in the Jewish Autonomous Region is shown with an asterisk.

Fig. 3 in First record of the rare slug species Meghimatium bilineatum (Benson, 1842) (Gastropoda: Eupulmonata: Philomycidae) in the Jewish Autonomous Region (Middle Amur basin)

Fig. 3. Ethanol preserved mature Meghimatium bilineatum from the Middle Amur basin (dorsal view). Scale bar – 1 cm. Photo by L.A. Prozorova.

Рис. 1. Места находок слиЗнЯ Meghimatium bilineatum на Дальнем Востоке России. Новое местонахождение в Еврейской Автономной области отмечено ЗвеЗдочкой. in First record of the rare slug species Meghimatium bilineatum (Benson, 1842) (Gastropoda: Eupulmonata: Philomycidae) in the Jewish Autonomous Region (Middle Amur basin)

Рис. 1. Места находок слиЗнЯ Meghimatium bilineatum на Дальнем Востоке России. Новое местонахождение в Еврейской Автономной области отмечено ЗвеЗдочкой.

opencc-by-4.0Nov 2010View details →

Fig. 1 Live discodorid sea slugs, dorsal views. a Peltodoris atromaculata Bergh, 1880. b Discodoris boholiensis Bergh, 1877. c in A warning for ecologists and conservation biologists using species checklists: How the European marine fauna 'lost' all of its 16 Discodoris species (Mollusca: Gastropoda)

Fig. 1 Live discodorid sea slugs, dorsal views. a Peltodoris atromaculata Bergh, 1880. b Discodoris boholiensis Bergh, 1877. c Tayuva lilacina (Gould 1852). d "Montereina" aurila (Marcus and