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1,278 results for “Oniscidea”
Figure 4 in Taxonomy of the enigmatic genus Acanthoniscus Gosse, 1851 (Isopoda: Oniscidea: Armadillidae), from Jamaica, with the description of a new species
Figure 4. Body parts of Acanthoniscus richardsonae sp. nov. A, Overall, dorsal view; B, detail of the microsculpture of the dorsal tegument (left) and tricorn-like setae (right); C, lateral view of the anterior region of the body; D, lateral view of the posterior region of the body; E, right pleon-epimera 3–5 in ventral view; F, right pereon-epimera 1–7 in ventral view; G, detail of pereon-epimera 1–2 in a more ventral position; H, cephalothorax in dorsal view; I, cephalothorax in frontal view (the tiny sensory setae inserted between the ommatidia are illustrated under a magnification of 400×: a, b, c); J, cephalothorax in ventral view; K, pleotelson and uropods in dorsal view (the uropod exopodites are slightly pointing upward); L, pleotelson and uropods in ventral view; M, right uropod in ventral view; N, right uropod in dorsal view; O, drawing of the overall dorsal view modified from Richardson (1909); P, arrangement of dorsal spines, the diameters of the circles correspond to the relative size of the spines. Drawings of the corresponding structures modified from Richardson (1909) are included in I, J (the question mark means that the position representing the drawing is not totally clear) and in M. Abbreviations: sympodite (sy), endopodite (en), and exopodite (ex). Scale bars = 1 mm (A–L), 0.5 mm (M–N); in some cases, a single scale bar applies to more than one figure (indicated by the letters above the scale bar).
Figure 5 in Taxonomy of the enigmatic genus Acanthoniscus Gosse, 1851 (Isopoda: Oniscidea: Armadillidae), from Jamaica, with the description of a new species
Figure 5.Other appendages of Acanthoniscus richardsonae sp. nov. A, Second antenna; B, detail of flagellum of second antenna depicting position of aesthetasc groups (small arrows); C, detail of the distal article of the flagellum of the second antenna slightly turned over showing the aesthetasc groups; D, detail of the distal-most portion of the flagellum of the second antenna showing the apical cone; E, first antenna; F, detail of the third article of the first antenna showing the aesthetascs; G, male left seventh pereiopod; H, detail of ischium of male seventh pereiopod; I, detail of dactylus of male seventh pereiopod in anterior view; J, detail of dactylus of male seventh pereiopod in posterior view; K, male left first pereiopod, showing the areas on the carpus and propodus covered with the cleaning apparatus or antennal brush (dashed outlines); L, detail of carpus of male first pereiopod (anterior surface). Abbreviations: basis (bs), ischium (is), merus (me), carpus (ca), propodus (pr), flagellum (fl), and dactylus (da). Drawing of the corresponding structure modified from Richardson (1909) is included in A. Scale bars = 1 mm (A), 0.5 mm (G, K), 0.3 mm (B), 0.1 mm (C–E, H–J, L), 0.05 mm (F).
Figure 1 in Taxonomy of the enigmatic genus Acanthoniscus Gosse, 1851 (Isopoda: Oniscidea: Armadillidae), from Jamaica, with the description of a new species
Figure 1. Distribution of the genus Acanthoniscus in Jamaica. Above: type locality of A. spiniger at the hills near Bluefields (yellow dot), the type locality of A. richardsonae sp. nov. in the Blue Mountains (red dot), and a second location in the Blue Mountains where a specimen presumably of A. richardsonae sp. nov. was photographed (orange dot). The main collection sites of Henry G. Hubbard in 1877 are depicted by green dots, notice the proximity of Stony Hill to the distribution of A. richardsonae sp. nov. Below: The hills known as Surinam Quarters near Bluefields, referred by Gosse (1851) as "Bluefields Mountain," Westmoreland Parish, constitute the type locality of A. spiniger.
Figure 2 in Taxonomy of the enigmatic genus Acanthoniscus Gosse, 1851 (Isopoda: Oniscidea: Armadillidae), from Jamaica, with the description of a new species
Figure 2. Body parts of Acanthoniscus spiniger (female holotype BMNH 1973.478.1). A, Overall, dorsal view; B, overall, ventral view; C, right pereon-epimera 1–7 in ventral view; D, overall, lateral view; E, right pleon-epimera 3–5 in ventral view; F, overall, frontal view; G, cephalothorax in dorsal view; H, cephalothorax in frontal view; I, cephalothorax in ventral view; J, pleotelson and uropods in dorsal view; K, pleotelson and uropods in ventral view; L, right uropod in ventral view; M, arrangement of dorsal spines, the diameters of the circles correspond to the relative size of the spines. Drawings of the corresponding structures modified from Kinahan (1859) are included in J and L. Abbreviations: sympodite (sy), endopodite (en), and exopodite (ex). Scale bars = 1 mm (A–K), 0.5 mm (L). Original photographs by The Trustees of the BMNH.
Figure 3 in Taxonomy of the enigmatic genus Acanthoniscus Gosse, 1851 (Isopoda: Oniscidea: Armadillidae), from Jamaica, with the description of a new species
Figure 3. Right lateral view of a female paratype Acanthoniscus richardsonae sp. nov. showing coloration in alcohol. Scale bar = 1 mm.
Figure 3 in The first troglobitic terrestrial isopod (Isopoda, Oniscidea) from Peru
Figure 3. Caecopactes chullachaqui Campos-Filho, Sfenthourakis and Bichuette sp. nov., paratype. A, Habitus, lateral view; B, scaleseta; C, cephalon, dorsal view; D, cephalon, frontal view; E, cephalon and pereonite 1, frontal view; F, cephalon and pereonites 1 and 2, lateral view; G, epimeron 1, dorsal view; H, epimeron 1, ventral view; I, epimeron 2, dorsal view; J, epimeron 2, ventral view; K, pleonites 4 and 5, telson and uropods, dorsal view; L, antennula, M, antenna.
Figure 5 in The first troglobitic terrestrial isopod (Isopoda, Oniscidea) from Peru
Figure 5. Caecopactes chullachaqui Campos-Filho, Sfenthourakis and Bichuette sp. nov., paratype. A, pereopod 1; B, pereopod 7; C, genital papilla; D, pleopod 1; E, pleopod 2; F, pleopod 3 exopod; G, pleopod 4 exopod; H, pleopod 5 exopod.
Figure 2 in The first troglobitic terrestrial isopod (Isopoda, Oniscidea) from Peru
Figure 2. Cueva de Palestina. A, entrance zone of the cave, photo: A.O. Lobo; B, specimens foraging on guano on the cave floor.
Figure 2 in Catalogue of terrestrial isopods (Isopoda, Oniscidea) from Peru, with new records of Circoniscus ornatus (Scleropactidae) and Ethelum americanum (Eubelidae)
Figure 2. Photos of the habitats in the collection sites: A, Meandric floodplain (Nueva Alianza); B, low hill forest (Nuevo Sucre). Microhabitats: C, Philander sp. skull; D, decayed termite nests; E, F, rotten logs.
Figure 3 in Catalogue of terrestrial isopods (Isopoda, Oniscidea) from Peru, with new records of Circoniscus ornatus (Scleropactidae) and Ethelum americanum (Eubelidae)
Figure 3. Habitus in lateral view of: A, Circoniscus ornatus (Verhoeff, 1941); B, Ethelum americanum (Dollfus, 1896).
Figure 2 in Coprophagy in detritivores: methodological design for feeding studies in terrestrial isopods (Crustacea, Isopoda, Oniscidea)
Figure 2. Consumption rates of three different isopod species with two different food sources in three different treatments (access, removal and net). The values are mean ± SE and the numbers on top indicate the sample for each index
Figure 1. Experimental units for feeding rates tests with terrestrial isopods and fecal pellets from different food sources. A in Coprophagy in detritivores: methodological design for feeding studies in terrestrial isopods (Crustacea, Isopoda, Oniscidea)
Figure 1. Experimental units for feeding rates tests with terrestrial isopods and fecal pellets from different food sources. A) Treatment access; coprophagy is allowed. B) Treatment removal; coprophagy and bacterial activity on feces are avoided. C) Treatment net; coprophagy is avoided and bacterial activity on feces allowed. D) Fecal pellet from carrot (left) and decomposing leaf (right) consumption.
Figure 4 in Coprophagy in detritivores: methodological design for feeding studies in terrestrial isopods (Crustacea, Isopoda, Oniscidea)
Figure 4. Growth rate of isopods in three different treatments. A. Growth rate of Atlantoscia floridana. B. Growth rate of Balloniscus glaber and Armadillidium vulgare. The values are mean ± SE and the numbers on top indicate the sample number for each index.
Figure 3 in Coprophagy in detritivores: methodological design for feeding studies in terrestrial isopods (Crustacea, Isopoda, Oniscidea)
Figure 3. Assimilation efficiency of isopods fed on two different leaves in treatments access, removal and net. The values are mean ± SE and the numbers on top indicate the sample number for each index
Figure 2 in Laureola leucocephala sp. nov., representing a new record genus from China (Isopoda: Oniscidea: Armadillidae)
Figure 2. Laureola leucocephala sp. nov. A. Antenna. B. Pereopod 1. C. Pereopod 7. D. Pleopod 1 exopodite. E. Pleopod 1 endopodites. F. Pleopod 2 exopodite. G. Pleopod 2 endopodite. Scale bars = 0.2 mm.
Figure 1 in Laureola leucocephala sp. nov., representing a new record genus from China (Isopoda: Oniscidea: Armadillidae)
Figure 1. Laureola leucocephala sp. nov. A. Habitus in life. B. Female paratype in dorsal view. C. Female paratype in lateral view. D. Male holotype in ventral view. E. Male holotype in dorsal view. F. Male holotype in ventral view. Scale bars = 0.5 mm.
FIGURE 3 in New species and new records of Benthana Budde-Lund, 1908 (Isopoda: Oniscidea: Philosciidae) from southern Brazil
FIGURE 3: Map distribution of the species of Benthana from southern Brazil. *: Benthana carijos sp. nov.; : Benthana cairensis; : Benthana longicornis; : Benthana moreirai; ·: Benthana picta; ·: Benthana serrara; : Benthana taeniata.
FIGURE 2 in New species and new records of Benthana Budde-Lund, 1908 (Isopoda: Oniscidea: Philosciidae) from southern Brazil
FIGURE 2: Benthana carijos sp. nov. (male paratype). A: pereopod 1; B: pereopod 7; C: uropod; D: genital papilla; E: pleopod 1; F: pleopod 2; G: pleopod 5 exopod.
Fig. 5 in Buchnerillo atlanticus sp. nov., a new halophilic woodlouse (Isopoda: Oniscidea: incertae sedis) from the Atlantic coast of the Iberian Peninsula, with ecological remarks
Fig. 5. Buchnerillo atlanticus sp. nov., paratype, ♂ (MBCN 24683). A. Distal part of maxilliped. B. Maxilla. C. Maxillula, outher branch. D. Maxillula, inner branch. E. Left mandible. F. Right mandible. Figure not to scale.
Fig. 7 in Buchnerillo atlanticus sp. nov., a new halophilic woodlouse (Isopoda: Oniscidea: incertae sedis) from the Atlantic coast of the Iberian Peninsula, with ecological remarks
Fig. 7. Distribution of different species of Buchnerillo Verhoeff, 1942: B. litoralis Verhoeff, 1942 (●), unconfirmed records of B. litoralis (?), B. oceanicus Ferrara, 1974 (), B. neotropicalis Taiti, Montesanto & Vargas, 2018 (●), B. atlanticus sp. nov. (★) and unconfirmed records of B. atlanticus sp. nov. (?).
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