651 research outputs found
Ramazzottius semisculptus Pilato & Rebecchi 1992
No full textRamazzottius semisculptus Pilato & Rebecchi, 1992 Material examined. Locality No. 1 (3 specimens) The qualitative and quantitative characters allowed us to ascribe these specimens to Ramazzottius semisculptus, despite did not finding eggs. This species, previously only recorded for Europe, is a new record for Israel.Published as part of Pilato, Giovanni, Lisi, Oscar & Binda, Maria Grazia, 2010, Tardigrades of Israel with description of four new species, pp. 1-28 in Zootaxa 2665 on pages 24-2
Isohypsibius elegans Binda & Pilato 1971
No full text<i>Isohypsibius elegans</i> Binda & Pilato, 1971 <p> <b>Material examined.</b> Localities: Nos. 26, 31 (14 specimens).</p> <p> The cuticular ornamentation, number and disposition of the gibbosities, values of the index <i>pt</i> relative to the insertion point of the stylet supports, and to the claws, conform to those of the type material.</p> <p>This species is a new record for Israel, and was previously reported from some European localities, North Africa and, with some differences regarding the buccal armature (Pilato & D’Urso, 1976), from Australia.</p>Published as part of <i>Pilato, Giovanni, Lisi, Oscar & Binda, Maria Grazia, 2010, Tardigrades of Israel with description of four new species, pp. 1-28 in Zootaxa 2665</i> on page 1
Isohypsibius dastychi Pilato, Bertolani, & Binda 1982
No full textIsohypsibius dastychi Pilato, Bertolani & Binda, 1982 Material examined. Localities Nos. 30, 31 (2 specimens). The characters of the cuticle, with the qualitative and metric characters of the claws, have allowed a specific diagnosis. This species, a new record for Israel, has been reported for some European localities, i.e. Italy, Poland and Svalbard (Spitsbergen).Published as part of Pilato, Giovanni, Lisi, Oscar & Binda, Maria Grazia, 2010, Tardigrades of Israel with description of four new species, pp. 1-28 in Zootaxa 2665 on page 1
Macrobiotus simulans Pilato, Binda, Napolitano & Moncada 2000
No full text<i>Macrobiotus simulans</i> Pilato, Binda, Napolitano & Moncada, 2000 <p> <b>Material examined.</b> Locality No. 19 (2 specimens and 3 eggs).</p> <p>Specimens and eggs fit both qualitative and metric characters with the original description of the species. This species was previously only recorded from some Italian localities, and is a new record for Israel.</p>Published as part of <i>Pilato, Giovanni, Lisi, Oscar & Binda, Maria Grazia, 2010, Tardigrades of Israel with description of four new species, pp. 1-28 in Zootaxa 2665</i> on page 1
Microhypsibiidae Pilato 1998
No full textMICROHYPSIBIIDAE Pilato, 1998 Minute eutardigrades without cephalic papillae. A paired elliptical organ may be present on the head (Fig. 6). Diploclaws asymmetrically arranged with respect to the median plane of the legs (conventionally described as: 2121). The claws, of the Microhypsibius type, have a narrow basal section continuous with the primary branch; the secondary branch is rigidly joined to the primary branch at a distance from the base of the claw (Figs. 1 C, 24 A). The bucco-pharyngeal apparatus in the known genera has a rigid tube, without ventral lamina, but asymmetrical with respect to the frontal plane due to the differences in the shape between the dorsal and the ventral apophyses for the insertion of the stylet muscles (Fig. 24 B–D). Both these apophyses have two very thin caudal processes pointing backwards and sideways. Peribuccal lamellae, and probably also peribuccal papulae, absent in the known species. Composition: Only two genera are ascribed to the family: Fractonotus and Microhypsibius.Published as part of Pilato, Giovanni & Binda, Maria Grazia, 2010, Definition of families, subfamilies, genera and subgenera of the Eutardigrada, and keys to their identification, pp. 1-54 in Zootaxa 2404 on page 43, DOI: 10.5281/zenodo.19413
Hypsibiidae Pilato 1969
No full textHYPSIBIIDAE Pilato, 1969 Eutardigrades without cephalic papillae. A paired elliptical organ may be (rarely) present on the head (Fig. 6). The two diploclaws of each leg, usually different in the shape and size, are asymmetrically arranged with respect to the median plane of the leg (conventionally described as: 2121). Each diploclaw has a basal section which is continuous with the secondary branch, and a primary branch that is joined through a relatively flexible connection (Fig. 1 E). Only exceptionally the main branch appears rigidly joined to the secondary branch or quite separated from it. Many types of bucco-pharyngeal apparatuses can be distinguished; when peribuccal structures are present, the sagittal plane passes between those structures. Types of claws. Many types of claws can be recognized within the family. The Isohypsibius type (Fig. 10 A) The secondary branch and the basal section form an almost right angle. Diploclaws of the same leg are slightly different in the size and shape from each another. The Ramazzottius (= oberhaeuseri) type (Fig. 10 C) Diploclaws of the same leg extremely different from one another in the size and shape. External claws with basal section longer than the secondary branch; primary branch very long and slender; internal claws short and stout.Published as part of Pilato, Giovanni & Binda, Maria Grazia, 2010, Definition of families, subfamilies, genera and subgenera of the Eutardigrada, and keys to their identification, pp. 1-54 in Zootaxa 2404 on page 19, DOI: 10.5281/zenodo.19413
Calohypsibiidae Pilato 1969
No full textCALOHYPSIBIIDAE Pilato, 1969 (amended by Pilato, 1989) <p> Eutardigrades without cephalic papillae. A paired elliptical organ may be present on the head (Fig. 6). Diploclaws of each leg asymmetrically arranged with respect to the median plane of the leg (conventionally described as: 2121). The standard diploclaws of the <i>Calohypsibius</i> type have the primary and the secondary branches rigidly joined to one another with the suture clearly visible arising from the base of the claw; therefore the basal section of the claws is wide and stumpy, without a narrow stem (Figs. 1 B, 7A,B). The two claws of each leg are similar in shape and size. The secondary branches may be more or less reduced (Fig. 7 C) or absent (simple claws) (Fig. 7 D). In some genera the hind legs may have only one claw or may be reduced and without claws.</p> <p> Two types of bucco-pharyngeal apparatuses are recognizable within the family: the <i>Hexapodibius</i> type (Pilato 1969) and the <i>Calohypsibius</i> type (Pilato & Binda 1996).</p> <p> The <i>Hexapodibius</i> type (Fig. 8 A)</p> <p>Buccal tube rigid and asymmetrical with respect to the frontal plane due to the presence of a ventral lamina; very narrow anterior portion of this lamina continues abruptly in a larger triangular portion with two processes pointing backwards and sideways. Peribuccal lamellae absent; six peribuccal papulae, sometimes forked, present with the sagittal plane passing between the papulae.</p> <p> The <i>Calohypsibius</i> type (Fig. 8 B–D)</p> <p>Buccal tube rigid without ventral lamina; a dorsal and a ventral apophyses for the insertion of the stylet muscles, asymmetrical with respect to the frontal plane, are present on the anterior portion of the buccal tube; the dorsal apophysis is subdivided into two portions: the anterior portion is a stumpy hook with a blunt caudal apex; the caudal portion is a short longitudinal thickening. The ventral apophysis is a very slightly prominent ridge. Both of these apophyses have two processes, but those of the dorsal apophysis point backwards and sideways (Fig. 8 C) while those of the ventral apophysis point laterally (Fig. 8 D). Peribuccal lamellae absent; six peribuccal papulae present with the sagittal plane passing between the papulae.</p> <p> <b>Composition:</b> Five genera are ascribed to the family: <i>Calohypsibius</i>, <i>Haplohexapodibius, Haplomacrobiotus, Hexapodibius</i> and <i>Parhexapodibius</i>.</p>Published as part of <i>Pilato, Giovanni & Binda, Maria Grazia, 2010, Definition of families, subfamilies, genera and subgenera of the Eutardigrada, and keys to their identification, pp. 1-54 in Zootaxa 2404</i> on pages 12-13, DOI: <a href="http://zenodo.org/record/194138">10.5281/zenodo.194138</a>
Haplomacrobiotus utahensis Pilato & Beasley, 2005, sp. n.
No full textHaplomacrobiotus utahensis sp. n. Material examined: Utah, Canyonlands National Park in Moab, 20 specimens (holotype and 19 paratypes) in two samples (collection dates: June 2003, June 2004). Type repository: Holotype and three paratypes are deposited in the Maria Grazia Binda and Giovanni Pilato collection; 16 paratypes in the collection of Clark Beasley. . Description of the holotype: Body length 417 m, colourless, eye spots present, cuticle smooth without pores. Buccopharyngeal apparatus with rigid buccal tube and ventral lamina (Figs. 1 A; 2 A, B; 3). Mouth anteroventral rounded by six well evident peribuccal lobes (Fig. 1 B). Peribuccal lamellae absent. Peribuccal papulae present, these structures different in size (Fig. 3 B) and probably, as reported by Pilato (1993) for H. hermosillensis, some of them are forked. A crown of fine teeth is present in the anterior portion of the buccal cavity (Fig. 2 B). Posterior portion of the buccal cavity without teeth but two laterodorsal and two ventrolateral transversal ridges present. Mediodorsal and a medioventral ridges seem to be absent. Buccal tube 43.1 m long and 6 m width (pt = 13.9). Stylet supports inserted on the buccal tube at 67.4 % of its length (pt = 67.4). Pharyngeal bulb with apophyses and three rodshaped macroplacoids (Figs 1 A; 2 A, B; 3 A); microplacoid absent. First macroplacoid 5.0 µm long (pt = 11.6), second 4.6 µm (pt = 10.7), third 5.6 µm (pt = 13.0); entire row of macroplacoids 16.6 µm long (pt = 38.5). All legs with two single, thin and small claws (Figs 2 C, D). Internal claw on the second and third pairs of legs 5.2 µm long (pt = 12.1), external claw on the same pairs of legs 5.7 µm long (pt = 13.2); anterior claw on the hind legs 5.8 µm long (pt = 13.4), posterior claw of the same pair of legs 6.4 µm long (pt = 14.8). Lacking lunules and cuticular thickenings on the legs. Eggs unknown. Etymology: The name utahensis is derived from the state of Utah, where the specimens were collected. Differential Diagnosis: Haplomacrobiotus utahensis sp. n. is the second species of the genus; it is similar to H. hermosillensis in many characters, but differs from it in the some features: more evident peribuccal lobes (Figs. 1 B and 4 D); wider buccal tube (Table 1); thinner and shorter claws (Figs. 2 C, D and 4 A, B, C; Table 1); first macroplacoid different in shape (in H. hermosillensis the first macroplacoid with a longer, thin anterior portion (Fig. 4 B) and therefore in some focal positions that macroplacoid appears shorter than the second (Fig. 4 A), but in another focal position the true length of that placoid appears evident (Fig. 4 B). In H. utahensis sp. n. the anterior portion of the first placoid is shorter and therefore the true length of that macroplacoid is better evident (Figs. 1 A; 2 A). For this reason, when specimens of H. hermosillensis and H. utahensis sp. n. are compared not very carefully, placoids of the same length may seem to be, in some focus positions, different in length. Remarks: We emphasize that peribuccal lobes in H. hermosillensis were considered absent by Schuster et al. (1980; page 292, Table 1), but Fig. 4 D demonstrates that they are present. They are less visible when the buccal tube is retracted. The peribuccal papulae, as in H. hermosillensis (Pilato, 1993) may have different dimensions (Fig. 3 B) from one another; it is not clear whether they are forked or not. The characters of Haplomacrobiotus utahensis sp. n, particularly the presence, the number and the symmetry of peribuccal lobes and peribuccal papulae confirm the opinion (expressed by Pilato since 1969) that the genus Haplomacrobiotus must be ascribed to the family Calohypsibiidae.Published as part of Pilato, Giovanni & Beasley, Clark, 2005, Haplomacrobiotus utahensis new species of Calohypsibiidae (Eutardigrada) from North America, pp. 1-7 in Zootaxa 879 on pages 2-6, DOI: 10.5281/zenodo.27321
Definition of families, subfamilies, genera and subgenera of the Eutardigrada, and keys to their identification
No full textPilato, Giovanni, Binda, Maria Grazia (2010): Definition of families, subfamilies, genera and subgenera of the Eutardigrada, and keys to their identification. Zootaxa 2404: 1-54, DOI: 10.5281/zenodo.19413
Dastychius Pilato, 2013, gen. nov.
No full textDastychius gen. nov. Fig. 2. Material examined. I examined 15 specimens from Antarctic: Enderby Land: Evening Mountain (67 °, 39 ’S, 46 ° 06’E). Legit K. Jazdzewki. Type repository. 6 specimens (paratypes) are deposited in the Binda and Pilato collection (Department of the Animal Biology, University of Catania, Italy, slide No. 3278); the Holotype is deposited in the Department of Animal Morphology A. Mickiewicz University of Poznan (Poland), and paratypes in the Dastych collection (Zoologisches Museum of Hamburg, Germany), British Antarctic Survey Data Resource Collection (UK), National Museum of Natural History, Washington and National Museum of New Zealand, Wellington. Diagnosis. Claws of the Isohypsibius type (Fig. 2 E); double claws of the same leg slightly different in shape and size; rigid buccal tube without ventral lamina but with a dorsal and a ventral apophysis for the insertion of the stylet muscles in shape of long, continuous ridges tailing off caudally and almost reaching the level of the stylet supports (Fig. 2 A, B, C); anterior portion of both apophyses with caudal processes pointing backwards and sideways (Fig. 2 C). At about a quarter the length of the ridged apophyses is an incision and septum (Fig. 2 A, B). Six peribuccal lobes present; peribuccal lamellae absent; structures in the form of peribuccal papulae present (Fig. 2 D), but this should be confirmed. Stylet furcae typically shaped, i.e. the basal portion of the two caudal branches are enlarged with thickened, swollen, and rounded apices (Fig. 2 B); pharyngeal bulb with apophyses and placoids (Fig. 2 C). Lunules present in the monotypic species (Fig. 2 E). Smooth eggs laid in the exuvium. Type species. Isohypsibus improvisus Dastych, 1984. Composition. Dastychius improvisus comb. nov. (Dastych, 1984) is the only species to date attributable to the new genus. Etymology. The name Dastychius is attributed to the new genus in honour of Hieronym Dastych (University of Hamburg, Germany) author of the type species Isohypsibius improvisus Dastych, 1984. Remarks. Ramajendas is currently the only known eutardigrade genus having the AISM in shape of long ridges. Dast y chius clearly differs from Ramajendas in having all claws of Isohypsibius type (Fig. 2 E); the external claws of Ramajendas are of Hypsibius type with an extremely long main branch. A comparison between Dastychius gen. nov. and Ramajendas is particularly interesting as regards the AISM. In Dastychius gen. nov. the apophyses are longer and gradually thin out caudally (Fig. 2 A, B, C), whereas in Ramajendas the apophyses are shorter, and the caudal portion ends abruptly (Fig. 3 A), not gradually. In Dastychius gen. nov., though the apophyses are clearly uninterrupted, a septum is present dividing an anterior and posterior portion (Fig. 2 A, B), which is not visible in Ramajendas (Fig. 3 A).Published as part of Pilato, Giovanni, 2013, The taxonomic value of the structures for the insertion of the stylet muscles in the Eutardigrada, and description of a new genus, pp. 365-378 in Zootaxa 3721 (4) on pages 368-369, DOI: 10.11646/zootaxa.3721.4.4, http://zenodo.org/record/21909
- …
