Fig. 3. <strong>Gyraulus</strong> <strong>parvus</strong> (Say), mrp – penis retractor muscle, prp – preaputium, psh – penis sheat, dh – distal halfof vas deferens, ph – proximal half of vas deferens, ut – uterus. Scale = 1 mm. Orig. M. Horsák.<strong>the</strong> south from Mariánské Radice, Nor<strong>the</strong>rn Bohemia, 5447, October 18, 2000, lgt. L. Beran; MariánskéRadice, a small pond at left side of <strong>the</strong> road Mariánské Radice – Braany to <strong>the</strong> east fromMariánské Radice, Nor<strong>the</strong>rn Bohemia, 5448, October, 18, 2000, lgt. L. Beran; Chomutov, a waterreservoir between Spoice and Droužkovice (nearest to Droužkovice), Nor<strong>the</strong>rn Bohemia, 5546,October 20, 2000, lgt. L. Beran; Chomutov, small elongated water reservoir between Spoice andDroužkovice (third from Spoice), Nor<strong>the</strong>rn Bohemia, 5546, October 20, 2000, lgt. L. Beran (see also<strong>the</strong> map on Fig. 1).Very abundant occurrence (at least 100 <strong>in</strong>dividuals per square meter) were documented atlocalities Lahoš, Horka nad Moravou and Louka u Litvínova, at o<strong>the</strong>r localities were documentedonly scattered (less than 10 specimens per square meter) or solitary (less than 1 specimen persquare meter) occurrence of this species. This North-American species probably <strong>in</strong>habits moreespecially artificial (sandpits, water reservoir at reclaimed land) localities on <strong>the</strong> territory of <strong>the</strong><strong>Czech</strong> <strong>Republic</strong>, but because of its similarity with <strong>Gyraulus</strong> laevis it is possible that this species isconfuse with this native species by most of malacozoologists especially <strong>in</strong> case, when determ<strong>in</strong>ationis based only on conchs.83
REFERENCESBERAN L. & HORSÁK M. 1998: Aquatic molluscs (<strong>Gastropoda</strong>, Bivalvia) of <strong>the</strong> Dolnomoravský úval lowland,<strong>Czech</strong> <strong>Republic</strong>. Acta Soc. Zool. Bohem. 62: 7–23.BUCHAR J. 1982: Publication of faunistic data from <strong>Czech</strong>oslovakia. Vst. s. Spole. Zool. 46: 317–318.GLÖER P. & MEIER-BROOK C. 1998: Süsswassermollusken (E<strong>in</strong> Bestimmungsschlüssel für die BundesrepublikDeutschland) 12. Auflage. Hamburg: Deutscher Jugendbund für Naturbeobachtung, 136 pp.MEIER-BROOK C. 1983: Taxonomic studies on <strong>Gyraulus</strong> (<strong>Gastropoda</strong>: Planorbidae). Malacologia 24(1–2): 1–113.84
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- Page 14 and 15: Family Acuariidae Railliet, Henry e
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- Page 18 and 19: A c k n o w l e d g e m e n t sThe
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- Page 22 and 23: Figs 1-10. Harpalus (Harpalus) atra
- Page 24 and 25: Figs 11-19. Harpalus (Harpalus) cis
- Page 26 and 27: Figs 20-27. Harpalus (Harpalus) lut
- Page 28 and 29: Figs 28-35. Harpalus (Harpalus) pic
- Page 30 and 31: Figs 36-44. Harpalus (Harpalus) sax
- Page 32 and 33: Figs 45-53. Harpalus (Harpalus) ser
- Page 34 and 35: Figs 54-61. Harpalus (Harpalus) sol
- Page 36 and 37: Figs 62-70. Harpalus (Harpalus) xan
- Page 38 and 39: Based on the study of our larval ma
- Page 40 and 41: EMDEN F. I. van 1942: A key to the
- Page 42 and 43: Acta Soc. Zool. Bohem. 66: 121-140,
- Page 44 and 45: and D. papillifera (Fuhrmann, 1908)
- Page 46 and 47: about 1 mm) with only a few eggs in
- Page 48 and 49: The number of catfish examined each
- Page 50 and 51: number (3.65) of trematodes with ma
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from individual months. Tab. 2 show
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number (5.57) of males occurred in
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intermediate host, copepod, catfish
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CHUBB J. C. 1982: Seasonal occurren
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Acta Soc. Zool. Bohem. 66: 141-150,
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efore distal angle of discoidal tri
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cells between them and IR2 or MA”
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character is less pronounced in Oli
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REFERENCESBACHMAYER F. 1952: Fossil
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Acta Soc. Zool. Bohem. 66: 151-160,
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elow) and a 170×90×70 type was us
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the brood, first into heaps near th
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trophallaxis until the termination
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4. The queen that was accepted was
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