Global Cestode DatabaseCestode Scientific Name
| Species ID | 13569 |
|---|---|
| Order | Onchoproteocephalidea I |
| Family | Proteocephalidae |
| Subfamily | Proteocephalinae |
| Genus | Frezella |
| Species | vaucheri |
| Authority | Alves, de Chambrier, Scholz & Luque, 2015 |
| Taxonomic Status | Valid |
| Valid Name | |
| Synonyms | |
| Genus Record | No |
| Type Species | Yes |
| Verified | Yes |
| Verified By | T. Scholz |
| Citation(s) |
Alves, P. V., A. de Chambrier, T. Scholz, and J. L. Luque. 2015. A new genus and species of proteocephalidean tapeworm (Cestoda), first parasite found in the driftwood catfish Tocantinsia piresi (Siluriformes: Auchenipteridae) from Brazil. Folia Parasitologica 62: 006. (6615) Download PDF |
| Redescription | |
| Scientific Name Notes |
Record Data
| Date (MM/DD/YYYY) | Action | User Name |
|---|---|---|
| 10/27/2015 | Created | K. Jensen |
| 10/27/2015 | Modified | K. Jensen |
| 12/03/2015 | Modified | N. Arisco |
| 01/07/2016 | Modified | J. Caira |
| 12/05/2018 | Modified | P. Alves |
| 12/03/2021 | Modified | B. Barbeau |
| 06/19/2024 | Modified | T. Scholz |
Type Host
| Host Class | Actinopterygii | ||||||
|---|---|---|---|---|---|---|---|
| Host Order | Siluriformes | ||||||
| Host Family | Auchenipteridae | ||||||
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Type Host (Literal) |
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Type Host (Valid) |
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| Additional Host(s) | |||||||
| Site in Host | anterior intestine | ||||||
| Host Notes |
Type Locality
| Country | Brazil |
|---|---|
| Body of Water | Xingú River |
| Island(s) | |
| City/Region | Altamira, State of Pará |
| Coordinates | |
| DD Latitude | 3°12'S; 52°12'W |
| DD Longitude | |
| Additional Localities | |
| Locality Notes |
Specimens
| Type Material | Holotype (CHIOC 37978a-h - complete specimen and cross sections on eight slides), 5 paratypes including hologenophore (CHIOC 37979a-d, 37980a-d; IPCAS c-663; MHNG-PLAT 86723 |
|---|---|
| Total Number of Type Specimens | |
| Voucher Material | |
| Specimen Notes |
Data are given as in original description unless otherwise indicated.
Figs. 9-11. Frezella vaucheri gen. n. et sp. n. from Tocantinsia piresi from Brazil. Fig. 9. Scolex, dorsoventral view; holotype (BrX 65f - CHIOC 37979a); note the presence of two distinct parts of the metascolex. Fig. 10. Scolex, sagittal section; paratype (BrX 65fz - MHNG-PLAT 86723); note the presence of concentration of circular muscle fibres near sucker opening. Fig. 11. Pregravid proglottid, ventral view; paratype (BrX 65fz - MHNG-PLAT 86723). Abbreviations: ao - apical organ; cm - circular musculature; gc - glandular cells; lm - longitudinal musculature; mg - Mehlis' gland; oc - osmoregulatory canals; od - oviduct. Figure 12. Frezella vaucheri gen. n. et sp. n. from Tocantinsia piresi from Brazil. Terminal genitalia, dorsal view; paratype (BrX 65fz - MHNG-PLAT 86723). Abbreviations: ac - additional canal; av - asymmetrical chamber-like cavity of the vagina; ci - cirrus; cs - cirrus-sac; do - dorsal osmoregulatory canal; ga - genital atrium; vo - ventral osmoregulatory canal; vs - vaginal sphincter. 
Fig. 13-18. Frezella vaucheri gen. n. et sp. . from Tocantinsia piresi from Brazil. Fig. 13. Cross section at level of posterior part of proglottid; paratype (BrX 65z - MHNG-PLAT 86723). Figs. 14, 15. Cross sections at level of cirrus-sac and ovary, respectively; holotype (BrX 65f - CHIOC 37979c-d). Fig. 16. Cross section, detail of terminal genitalia; holotype (BrX 65f - CHIOC 37979c). Fig. 17. Cross section, detail of aporal lateral region showing concentration of muscle fibres; holotype (BrX 65f - 37979e). Fig. 18. Eggs drawn in distilled water (BrX 65g - MHNG-PLAT 86722). Abbreviations: ci - cirrus; cs - cirrus-sac; do - dorsal osmoregulatory canal; du - diverticula of uterus; ed - ejaculatory duct; em - bilayered embryophore; ga - genital atrium; lm - internal longitudinal musculature; ln - longitudinal nerve cord; oe - outer envelope; on - oncosphere; ov - ovary; st - subtegumental muscle fibres; su - subtegumental cells; te - testes; tg - tegument; us - uterine stem; va - vas deferens; vc - vaginal canal; vd - vitelline duct; vi - vitelline follicles; vo - ventral osmoregulatory canal. 
Figs. 1-8. Frezella vaucheri gen. n. et sp. n. from Tocantinsia piresi from Brazil. Scanning electron micrographs. Fig. 1. Scolex (BrX 65c - MHNG-PLAT 86718), dorsoventral view. Figs. 2, 3. Scolex, apical and lateral view, respectively; paratype (BrX 65y - IPCAS C-663); white arrow shows the orifice of the apical organ. Figs. 4-7. Capilliform filitriches on surface of upper part of apex, internal surface of suckers, anterior part of metascolex and proliferation zone (neck), respectively (BrX 65c - IPCAS C-663). Fig. 8. Acicular filitriches on surface of pregravid proglottids (BrX 65c - IPCAS C-663). Best viewed in Firefox
