Global Cestode DatabaseCestode Scientific Name
| Species ID | 5629 |
|---|---|
| Order | Lecanicephalidea |
| Family | Polypocephalidae |
| Subfamily | |
| Genus | Polypocephalus |
| Species | helmuti |
| Authority | Jensen, 2005 |
| Taxonomic Status | Valid |
| Valid Name | |
| Synonyms | |
| Genus Record | No |
| Type Species | No |
| Verified | No |
| Verified By | |
| Citation(s) |
Jensen, K. 2005. Tapeworms of Elasmobranchs (Part I). A monograph on the Lecanicephalidea (Platyhelminthes, Cestoda). Bulletin of the University of Nebraska State Museum 18: 1-241. (4502) Download PDF |
| Redescription | |
| Scientific Name Notes |
Record Data
| Date (MM/DD/YYYY) | Action | User Name |
|---|---|---|
| 08/31/2009 | Created | V. Lopez |
| 07/25/2014 | Modified | |
| 01/08/2016 | Modified | K. Jensen |
| 01/11/2016 | Modified | K. Mojica |
| 01/21/2016 | Modified | K. Mojica |
Type Host
| Host Class | |||||||
|---|---|---|---|---|---|---|---|
| Host Order | Myliobatiformes | ||||||
| Host Family | Rhinopteridae | ||||||
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Type Host (Literal) |
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Type Host (Valid) |
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| Additional Host(s) | |||||||
| Site in Host | spiral intestine | ||||||
| Host Notes | type host specimen (=AU-85) identification updated based on Naylor et al. (2012) |
Type Locality
| Country | Australia |
|---|---|
| Body of Water | |
| Island(s) | |
| City/Region | Northern Territory, Dundee Beach, Northern Territory |
| Coordinates | |
| DD Latitude | -12.833 |
| DD Longitude | 130.200 |
| Additional Localities | |
| Locality Notes |
Specimens
| Type Material | QM No. G222908 (holotype) QM Nos. G222909-222915 (7 paratypes) USNPC No. 94580 (8 paratypes) KUNHM Nos. 002117-002120 (14 paratypes) LRP Nos. 3300-3313 (14 paratypes) |
|---|---|
| Total Number of Type Specimens | 41 (20 whole mounts, 3 specimen cross-section series, 3 specimen longitudinal section series, 8 lactophenol preparations of eggs, and 7 specimens prepared for SEM) |
| Voucher Material | |
| Specimen Notes |
Data are given as in original description unless otherwise indicated.
Fig. 47. A-I. Line drawings of Polypocephalus helmuti Jensen, n. sp. A. Whole worm (holotype, QM No. G 222908). B. Scolex with tentacles everted (holotype, QM No. G 222908). C. Scolex with tentacles invaginated (USNPC No. 94580). D. Mature proglottid (USNPC No. 94580). E. Gravid terminal proglottid (LRP No. 3306). F. Cross-section through mature proglottid at level of ovarian bridge (QM No. G 222913). G. Cross-section through mature proglottid anterior to genital pore (QM No. G 222913). H. Eggs in early gravid proglottid (QM No. G 222915). I. Eggs in older gravid proglottid (QM No. G 222915). 
Fig. 48. A-I. Scanning electron micrographs of Polypocephalus helmuti Jensen, n. sp. A. Whole worm. B. Scolex with tentacles invaginated. C. Everted tentacles. D. Surface of tentacles. E. Microtriches on surface of apical modification of scolex proper. F. Microtriches on distal acetabular surface. G. Microtriches on surface of scolex proper anterior to acetabula. H. Microtriches on surface of scolex proper between acetabula. I. Microtriches on surface of strobila. Scale bars: A, 100 µm; B, 25 µm; C, 25 µm; E-I, 1 µm. 
QM No. G222908, holotype slide 
QM No. G222908, scolex of holotype 
QM No. G222908, terminal proglottid of holotype 
LRP No. 3306, paratype slide Best viewed in Firefox
