Cestode Scientific Name
| Species ID | 1805 |
|---|---|
| Order | Lecanicephalidea |
| Family | Polypocephalidae |
| Subfamily | |
| Genus | Flapocephalus |
| Species | trygonis |
| Authority | Deshmukh, 1979 |
| Taxonomic Status | Valid |
| Valid Name | |
| Synonyms | |
| Genus Record | No |
| Type Species | Yes |
| Verified | Yes |
| Verified By | K. Jensen |
| Citation(s) |
Deshmukh, R. A. 1979. On a new cestode Flapocephalus trygonis gen. et sp. nov. (Cestoda: Lecanicephalidae) from Trygon sephen from west coast of India. Rivista di Parassitologia 40: 261-265. (161) Download PDF |
| Redescription |
Hanselman, K. M., R. Gobiraj, and K. Jensen. 2025. Revision of the Lecanicephalidean Genus Flapocephalus Deshmukh, 1979 (Eucestoda) from Cowtail Rays (Genus Pastinachus Rüppell) (Myliobatiformes: Dasyatidae Jordan and Gilbert) with the Description of Four New Species. Journal of Parasitology 111(5): 582–605. (7616) Download PDF |
| Scientific Name Notes |
Record Data
| Date (MM/DD/YYYY) | Action | User Name |
|---|---|---|
| 09/09/2006 | Created | K. Jensen , R. Tracy |
| 02/11/2010 | Modified | |
| 08/07/2015 | Modified | K. Jensen |
| 01/10/2016 | Modified | K. Jensen |
| 06/09/2016 | Modified | K. Jensen |
| 10/06/2025 | Modified | K. Hanselman |
Type Host
| Host Class | |||||||
|---|---|---|---|---|---|---|---|
| Host Order | Myliobatiformes | ||||||
| Host Family | Dasyatidae | ||||||
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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 Locality
| Country | Sri Lanka |
|---|---|
| Body of Water | Indian Ocean |
| Island(s) | |
| City/Region | Point Pedro |
| Coordinates | 09°49'41.94"N, 80°14'23.94"E |
| DD Latitude | |
| DD Longitude | |
| Additional Localities | Ratnagiri, India (From Deshmukh, 1979); Pacific Ocean off Weipa, (12°35'11"S, 141°42'34"E), Queensland, Australia (host specimens CM03-2, CM03-9, CM03-26, CM03-79); Pacific Ocean off Vonavona (08°13'23.8"S, 157°00'02.4"E), Solomon Islands (host specimen SO-33); Pacific Ocean off Sei Kerbau (00°31'44.50"S, 117°09'32.90"E), East Kalimantan, Indonesia (host specimen KA-32). |
| Locality Notes |
Specimens
| Type Material | NEOTYPE (BRT-P 006); original specimens deposited in the Laboratory of Cestodology, Department of Zoology, Marathwada University, Aurangabad, (M.S.), India |
|---|---|
| Total Number of Type Specimens | 12 |
| Voucher Material | 1 voucher (mature worm, BRT-P 007); 6 vouchers (QM G241945–G241950); 8 vouchers (1 prgl cs, and 1 sc ls and voucher; USNM 1456344–1456351); 5 vouchers (LRP 11093–11097) and 1 SEM voucher (LRP 11098); 2 hologenophores (LRP 11099 and 11100); LRP 8302 (of Caira et al., 2014 as Flapocephalus n. sp. 1) |
| Specimen Notes |
Data are given as in original description unless otherwise indicated.
Global Cestode Database
FIGURE 1. Flapocephalus trygonis n. sp. A, C. Scolices - lateral view. B. Scolex - end-on-view. D. Scolex - lateroventral view. E. Mature segments.
Figure 2. Line drawings of Flapocephalus trygonis Deshmukh, 1979. (A) Whole worm (voucher; USNM 1456349). (B) Scolex (neotype; BRT-P 006).
(C) Terminal mature proglottid (voucher; QM G241949); arrows indicate level of sections in Figure 4A, B. (D) Terminal genitalia (voucher; QM G241949).
Figure 4. Light micrographs of histological sections of Flapocephalus trygonis Deshmukh, 1979 (A–C). (A) Proglottid cross section at level of testes. (B) Proglottid cross section at level of ovarian isthmus. (C) Scolex sagittal section.
Figure 3. Scanning electron micrographs of Flapocephalus trygonis Deshmukh, 1979 (A–F). (A) Scolex; small letters indicate location of details in B, C, E, and F; rectangle indicates region shown in D. (B) Surface of scolex proper. (C) Proximal surface of anterior region of apical organ. (D) Transition between anterior and posterior regions of apical organ. (E) Surface of posterior region of apical organ. (F) Surface of strobila. 

