Beringitaenia nanushukensis Haukisalmi, Hardman, Hoberg & Henttonen, 2014, n. sp.
Beringitaenia nanushukensis n. sp. (Fig. 11) Type host: Singing vole, Microtus miurus (Cricetidae, Arvicolinae). Type locality: Nanushuk River, Gates of the Arctic National Park, Alaska, USA (68 ° 16 ' 28.2 "N, 150 ° 40 '3.0"W). Site: Small intestine. Deposited specimens: Holotyp...
| Main Authors: | , , , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
| Published: |
2014
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| Subjects: | |
| Online Access: | https://zenodo.org/record/5686996 https://doi.org/10.5281/zenodo.5686996 |
| Summary: | Beringitaenia nanushukensis n. sp. (Fig. 11) Type host: Singing vole, Microtus miurus (Cricetidae, Arvicolinae). Type locality: Nanushuk River, Gates of the Arctic National Park, Alaska, USA (68 ° 16 ' 28.2 "N, 150 ° 40 '3.0"W). Site: Small intestine. Deposited specimens: Holotype: MSB Parasites 19033 (included in the present phylogenetic analysis). Collectors: Kyndall Hildebrandt, Juha Laakkonen, Jukka Niemimaa and Melanie Flamme. Paratype: MSB Parasites 19034, other data same as in the holotype. Symbiotype (host voucher): University of Alaska Museum (UAM) Mammals 79069. Etymology. The specific epithet of the new species refers to the Nanushuk River. Description (based on one gravid and one postmature specimen; all measurements in mm): Body short, 33 long. Number of proglottids ca. 170. Maximum width 2.5, attained in gravid proglottids. Strobila craspedote, velum long. All proglottids much wider than long, length/width ratio ca. 0.11 in mature proglottids. Last gravid proglottids longer and thinner than preceding ones. Scolex 0.470–0.485 wide and ca. 0.25 long. Neck (unsegmented region) short (0.15–0.20) and relatively wide (0.35–0.36 or 74 % of scolex width). Suckers 0.195–0.220 wide, embedded within scolex, directed antero-laterally. Developing genital organs visible in first proglottids. Genital pores unilateral, opening at middle of lateral margin in mature proglottids. Genital atrium 0.05–0.10 deep. Genital ducts running between ventral and dorsal longitudinal osmoregulatory canals (could be seen only in holotype). Ventral dorsal longitudinal osmoregulatory canals 0.035–0.050 wide in mature proglottids, strongly arched, evidently connected by very narrow transverse canals (not seen). Dorsal longitudinal canals narrow (ca. 0.015 wide), strongly arched, positioned lateral to ventral longitudinal canals or partly overlapping them. Testes ca. 35 in number, distributed as single antiporal group, median testes reaching antiporal margin of vitellarium, markedly overlapping ovary. Multiple testes extending across ... |
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