60 research outputs found
Desertoniscus schmalfussi Kashani & Allspach, 2012, n. sp.
No full textDesertoniscus schmalfussi n. sp. (Figs 1 and 2) Material examined. Holotype. male, 5.5 mm, S Turkestan, Musdia Diar, 13 May 1913, leg: K. Küchler, with micropreparation of appendages (SMF 10309). Paratypes: one female, same data as for the holotype (SMF 39652); one male and one female, S Turkestan, Chakini Padag, 13 May 1913, leg. K. Küchler, with micropreparation of male appendages (SMF 11343). Diagnosis. Head with well developed lateral and median lobes. Antenna short, not surpassing posterior margin of pereion tergite I, flagellar article ratio 1: 3. Male pereiopods I–II with brushes of setae on merus and carpus. Male pereiopod VII carpus with a distinct ridge dorsally. Male pleopod exopodite I with long hind lobe and truncate apex. Pleopod endopodite I with several long setae on apex. Description. Maximum length male and female 5.5 mm. Color pale brown. Body outline as in Fig. 1 A. Cephalon with well developed lateral and median lobes; frons with or without incision in the middle (Fig. 1 C). Antenna short, not surpassing the posterior margin of pereion tergite I; fifth article of peduncle as long as flagellum, with length: width ratio 3: 1; flagellum with two articles, proximal article short and club-shaped, flagellar articles ratio 1: 3 (Fig. 1 E). Pereion tergite I with rounded hind margin. Noduli laterales on pereionites I to IV distinctly more distant from the lateral margins than those on pereionites V to VII (Fig. 1 B). Telson triangular with slightly concave sides and rounded apex, surpassing uropod-protopodites but not reaching to the middle of uropod-exopodites (Fig. 1 D). Pleopod exopodites I–V with monospiracular covered lungs (Fig. 2 C–G). Male: Pereiopods I–II merus and carpus with brushes of trifid setae (Fig. 1 F). Pereiopod VII stout, ischium with concave ventral margin in proximal part and with a field of dense setae on rostral side; carpus with a low but conspicuous ridge on dorsal margin (Fig. 1 G). Pleopod exopodite I with long but truncate hind lobe (Fig. 2 B); pleopod endopodite I straight with apex equipped with a row of long spiny setae (Fig. 2 A). Pleopod exopodites II–V as in Fig. 2 D–G. Etymology. This species is named after Dr. H. Schmalfuss in appreciation of his outstanding work on terrestrial isopods, particularly the oriental isopod fauna. Remarks. Desertoniscus schmalfussi differs from all the other species of Desertoniscus by the presence of a distinct ridge on dorsal margin of male pereiopod VII carpus and in having several long setae on the apex of the male pleopod endopodite I. Distribution. Turkestan.Published as part of Kashani, Ghasem M. & Allspach, Andreas, 2012, Redescription of Desertoniscus taschkentensis (Verhoeff, 1930) and description of Desertoniscus schmalfussi n. sp. (Isopoda: Oniscidea), pp. 40-46 in Zootaxa 3154 on page 41, DOI: 10.5281/zenodo.27960
FIGURE 1. Desertoniscus schmalfussi n in Redescription of Desertoniscus taschkentensis (Verhoeff, 1930) and description of Desertoniscus schmalfussi n. sp. (Isopoda: Oniscidea)
No full textFIGURE 1. Desertoniscus schmalfussi n. sp. A, E–F, holotype; B–D paratype. A, body outline; B, right side of pereion showing disposition of noduli laterals; C, cephalon and first pereonite; D, telson and uropods; E, antenna; F, pereiopod 1; G, pereiopod 7. Scale = 1 mm for A; 0.5 mm for C–D; 0.2 mm for E–G.Published as part of Kashani, Ghasem M. & Allspach, Andreas, 2012, Redescription of Desertoniscus taschkentensis (Verhoeff, 1930) and description of Desertoniscus schmalfussi n. sp. (Isopoda: Oniscidea), pp. 40-46 in Zootaxa 3154 on page 42, DOI: 10.5281/zenodo.27960
Desertoniscus Verhoeff 1930
No full textDesertoniscus Verhoeff, 1930 Type species: Desertoniscus subterraneus Verhoeff, 1930 Diagnosis. Small body, up to maximum 10 mm, usually about 4–8 mm; tergites with conspicuous scale setae, with or without tubercles; short antenna, usually not surpassing posterior margin of pereion tergite I, with flagellum of two articles, proximal segment shorter and club-shaped; pereion epimera I with rounded hind margin; telson triangular with slightly concave sides, pleopod exopodite I in males with apex truncate or with a more or less deep hollow; pleopod-endopodite I in males with straight and pointed apex; noduli laterales on pereion tergites I–IV or II– IV far from the lateral margin and closer to the posterior margin (Borutzky 1978; Taiti & Checcucci 2011). Remarks. Borutzky (1978) pointed out that the dorsal margin of pereiopod VII carpus in males is always straight and without crest-shaped projection; while in the newly described species (D. schmalfussi n. sp.) there is a distinct ridge in the same position, excluding this character from the generic characteristics. The members of this genus live in the soil, sometimes very deep, down to 60 cm in steppes and agricultural territories (Borutzky 1978; Taiti & Checcucci 2011).Published as part of Kashani, Ghasem M. & Allspach, Andreas, 2012, Redescription of Desertoniscus taschkentensis (Verhoeff, 1930) and description of Desertoniscus schmalfussi n. sp. (Isopoda: Oniscidea), pp. 40-46 in Zootaxa 3154 on pages 40-41, DOI: 10.5281/zenodo.27960
Desertoniscus taschkentensis Verhoeff 1930
No full textDesertoniscus taschkentensis (Verhoeff, 1930) (Figs 3 and 4) Protracheoniscus taschkentensis Verhoeff, 1930: 113.– Borutzky, 1945: 170.– 1953: 19. Material examined. Male, 4 mm, lectotype, here designated, in a garden near Tashkent under stones and plants, 8– 18 March?, leg. Zachvatkin, with micropreparation of appendages (ZSM). Two males, three adult females, seven juvenile females, one specimen glued on the paper, same data as for lectotype (ZSM). Two juvenile females, Turkestan, leg. Verhoeff (MNB 22636). Diagnosis. Head with short lateral and well developed median lobes. Antenna short, slightly surpassing posterior margin of pereion-tergite I. Male pleopod exopodite I with short hind lobe and broadly truncate apex. Male pleopod endopodite I with a row of fine setae on the apex. Redescription. Maximum length male 4.5mm; female 8 mm. Color pale brown. Body outline as in Fig. 3 A. Cephalon with short lateral lobes, frontal lobe well developed and rather rounded, without incision in median part (Fig. 3 C). Antenna short, slightly surpassing the posterior margin of pereion tergite I; fifth article of peduncle as long as flagellum, with length:width ratio 4: 1; flagellum with two articles, proximal article short and clubshaped, flagellar articles ratio 1: 2.3 (Fig. 3 E). Pereion tergite I with rounded hind margin. Noduli laterales on pereionites 2 to 4 distinctly more distant from the lateral margins than those on pereionites 1 and 5 to 7 (Fig. 3 B). Telson triangular with slightly concave sides and rather pointed apex, surpassing uropod-protopodites but not reaching to the middle of uropod exopodites (Fig. 3 D). Pleopod exopodites I–V with monospiracular covered lungs. Male: Pereiopod I carpus with several long trifid setae but not forming a brush (Fig. 3 F). Pereiopod VII ischium with straight ventral margin; carpus with no ridge on dorsal margin (Fig. 3 G). Pleopod exopodite I with short and truncate hind lobe (Fig. 4 B); pleopod endopodite I straight with apex equipped with a row of fine setae (Fig. 4 A). Pleopod exopodite II as in Fig. 4 C. Remarks. Despite the lack of large male specimens in the examined material (not more than 4.5 mm), this species differs from all the other species of Desertoniscus in the shape of cephalon, antenna and the male exopodite and endopodite of pleopod I. Distribution. Turkestan; Tashkent.Published as part of Kashani, Ghasem M. & Allspach, Andreas, 2012, Redescription of Desertoniscus taschkentensis (Verhoeff, 1930) and description of Desertoniscus schmalfussi n. sp. (Isopoda: Oniscidea), pp. 40-46 in Zootaxa 3154 on pages 41-45, DOI: 10.5281/zenodo.27960
Measurement of the mass difference m(D-s(+))-m(D+) at CDF II
No full textWe present a measurement of the mass difference m(D-s(+))-m(D+), where both the D-s(+) and D+ are reconstructed in the phipi(+) decay channel. This measurement uses 11.6 pb(-1) of data collected by CDF II using the new displaced-track trigger. The mass difference is found to be m(D-s(+))-m(D+)=99.41+/-0.38(stat)+/-0.21(syst) MeV/c(2)
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The character of guilt within interpersonal relationships: A comparison of friends and significant others
No full textRecently, the role of guilt within interpersonal relationships has come under scrutiny. This research, though informative, has been primarily gleaned from retrospective accounts. This investigation examines guilt virtually as it is elicited in friendship and significant-other dyads, probing the following issues: (a) experienced guilt and perceptions of conversational appropriateness as they relate to relational satisfaction and relational interdependence, (b) the association between elicitors' and targets' perceptions of relational transgression and relational satisfaction, (c) elicitors' perceptions of predicted and actual outcomes of guilt elicitation, (d) effects of guilt elicitation on targets' perceptions of the relationship, (e) self-esteem's effect on targets' experienced guilt, and (f) effects of relationship type (i.e., friends vs. significant others) on the above. Results indicate that relationship type is associated with intensity of the guilt appeal, and is a factor in the link between relational interdependence and perceptions of a guilt appeal's appropriateness. Additionally relationship type, relational interdependence, and relational satisfaction offered some demonstration of moderating the usage and reception of guilt. Relational satisfaction evidenced no association with partners' perceptions of the relational transgression, while self-esteem demonstrated a near significant association with experienced guilt. Content analyses of elicitors' perceptions of predicted and actual outcomes and targets' perceptions of relational meanings of guilt appeals are presented
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