Lecanicephaloidea
| Lecanicephaloidea | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Class: | Cestoda |
| Subclass: | Eucestoda |
| Order: | Lecanicephalidea |
| Families | |
Plus Lecanicephalidea incertae sedis; see text | |
Lecanicephaloidea is an order of tapeworms of the subclass Cestoda. Species in the order consist of intestinal parasites of elasmobranch fishes.[1]
Anatomy
The order is distinguished in that the scolex consists of two parts. The lower half forms a neck bearing four small suckers. The upper half is either globular or tentacle-bearing, and shows glandular structures.[2] The anatomy of the order is similar to that of the Proteocephaloidea.
Taxonomy
The order currently contains the following families, according to WoRMS:[3]
- Aberrapecidae Jensen, Caira, Cielocha, Littlewood & Waeschenbach, 2016
- Cephalobothriidae Pintner, 1928
- Eniochobothriidae Jensen, Caira, Cielocha, Littlewood & Waeschenbach, 2016
- Lecanicephalidae Braun, 1900
- Paraberrapecidae Jensen, Caira, Cielocha, Littlewood & Waeschenbach, 2016
- Polypocephalidae Meggitt, 1924
- Tetragonocephalidae Yamaguti, 1959
- Zanobatocestidae Jensen, Caira, Cielocha, Littlewood & Waeschenbach, 2016
Additionally, the order contains the following accepted incertae sedis genera:
- Corrugatocephalum Caira, Jensen & Yamane, 1997
- Healyum Jensen, 2001
- Quadcuspibothrium Jensen, 2001
The order additionally contains several genera that are considered to be taxa inquirenda:
- Calycobothrium Stiles & Hassall, 1912
- Kystocephalus Shipley & Hornell, 1906
- Sephenicephalum Shinde, Sarwade & Jadhav, 1980 or 1982
- Staurobothrium Shipley & Hornell, 1905
- Trygonicephalum Shinde & Jadhav, 1985
References
- ^ "Order Lecanicephaloidea". Taxonomicon.
- ^ Encyclopedia of Science and Technology. McGraw-Hill.
- ^ WoRMS (2023). Lecanicephalidea. Accessed 2023-06-17.