Hymenolepididae (Ariola, 1899)

Syrota, Ya. Yu., Greben, O. B., Poluda, A. M., Maleha, O. M., Lisitsyna, O. I. & Kornyushin, V. V., 2018, Helminths Of The Mallard, Anas Platyrhynchos (Aves, Anatidae) In Ukraine: Analysis Of The Diversity In Mixed Forest Zone And The Black Sea Region, Vestnik Zoologii 52 (4), pp. 267-278 : 270-271

Family Hymenolepididae (Ariola, 1899)

Aploparaksis furcigera (Rudolphi, 1819) — intestine, cecum. 43.7 %, 26(1–78). Volyn Region (Lutsk and Turiisk Districts), Chernihiv Region ( Ripky District ) .

Cloacotaenia megalops (Nitzsch in Creplin, 1829) — cloaca. 12.5 %, 1(1). Volyn Region (Stara Vyzhivka District) and Chernihiv Region ( Ripky District ) .

Dicranotaenia coronula (Dujardin, 1845) — intestine. 6.2 %, 1(1). Chernihiv Region ( Ripky District ) .

Dicranotaenia sp. — intestine. 6.25 %, 1(1). Volyn Region ( Lutsk District ).

The specimen was not identified to the species level because it was immature.

Diorchis stefanskii Czaplinski, 1956 — intestine. 6.2 %, 3(3). Volyn Region ( Turiisk District ).

Fimbriaria fasciolaris (Pallas, 1781) — intestine. 6.2 %, 1(1). Chernihiv Region ( Ripky District ) .

Fimbriaria teresae Grytner-Ziecina & Cielecka, 1995 — intestine. 13.2 %, 2(1–3). Volyn Region (Lutsk District) and Chernihiv Region ( Nizhyn District ).

Description (based on three specimens without scolices).

Length of strobila without scolex 310 mm, maximum width 3.5 mm. Pseudoscolex well developed, 1.46–1.86 mm long and 0.6–0.8 mm wide. Genital pores unilateral, genital atrium simple. Total length of evaginated cirrus 30–40 (35, n = 6) ( fig. 1, A). Cirrus compound, in two parts. Basal part conical, 20–26 (23.6, n = 8) long and about 25–35 (29.3, n = 28) in diameter, armed with well visible spines ( fig. 1, B). The largest hookspines 9–10 (10, n = 23) in number, surrounding base of cirrus. Distal cylindrical part armed with small spines, 10–18 (14.8, n = 5) long and 8–12 (9.8, n = 5) in diameter, slightly narrower (6–10) terminally. Spines absent on terminal part 5–10 (n = 3) in length. Copulatory part of vagina funnel-shaped, with characteristic short internal spine-like structures, 12–20 × 25–35 (15.6 × 26.8 n = 25). Conductive part of vagina tubular, with thick walls.

Remark. It is the second registration of this species in Ukraine. Only scolex of F. teresae was found in previously studied material ( Greben, 2008). This species was described from Anas clypeata L. ( Grytner-Zięcina et Cielecka, 1995) and found in A. platyrhynchos ( Grytner-Zięcina et al., 2005) in Poland.

Fimbriaria sp. — intestine. 37.5 %, 5(1–9). Volyn Region (Manevychi, Lutsk and Turiisk Districts), Chernihiv Region ( Ripky District ).

The specimens were not identified to the species level because they were immature.

Microsomacanthus compressa (Linton, 1892) — intestine. 18.7 %, 2(1–4). Volyn Region (Turiisk District) and Chernihiv Region ( Ripky District ) .

Microsomacanthus spiralibursata ( Czaplinski, 1956) — intestine. 6.2 %, 250(250). Volyn Region ( Lutsk District ) .

Microsomacanthus paracompressa ( Czaplinski, 1956) — intestine. 18.7 %, 67(2–190). Volyn Region (Lutsk and Turiisk Districts) and Chernihiv Region ( Ripky District ) .

Microsomacanthus sp. — intestine. 6.2 %, 2(2). Volyn Region ( Turiisk District ).

The specimens were not identified to the species level because they were immature.

Retinometra venusta (Rosseter, 1897) — intestine. 6.25 %, 5(5). Volyn Region ( Turiisk District ) .

Retinometra sp. — intestine. 6.2 %, 1(1). Volyn Region ( Turiisk District ).

The specimen was not identified to the species level because it was immature.

Sobolevicanthus aculeostileticus Birova and Macko, 1991 — intestine. 12.5 %, 1(1). Volyn Region (Turiisk District), Chernihiv Region ( Ripky District ).

Sobolevicanthus gracilis (Zeder, 1803) — intestine. 18.7 %, 9(4–12). Volyn Region (Turiisk District), Chernihiv Region ( Ripky District ) .

Sobolevicanthus sp. — intestine. 6.2 %, 18(18). Volyn Region ( Turiisk District ).

The specimens were not identified to the species level because they were immature.