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62 results for “Rhinebothriidea”
Data from: Systematics and diversification of Anindobothrium Marques, Brooks & Lasso, 2001 (Eucestoda: Rhinebothriidea)
Tapeworms of the genus Anindobothrium Marques, Brooks & Lasso, 2001 are found in both marine and Neotropical freshwater stingrays of the family Potamotrygonidae. The patterns of host association within the genus support the most recent hypothesis about the history of diversification of potamotrygonids, which suggests that the ancestor of freshwater lineages of the Potamotrygonidae colonized South American river systems through marine incursion events. Despite the relevance of the genus Anindobothrium to understand the history of colonization and diversification of potamotrygonids, no additional efforts were done to better investigate the phylogenetic relationship of this taxon with other lineages of cestodes since its erection. This study is a result of recent collecting efforts to sample members of the genus in marine and freshwater potamotrygonids that enabled the most extensive documentation of the fauna of Anindobothrium parasitizing species of Styracura de Carvalho, Loboda & da Silva, Potamotrygon schroederi Fernández-Yépez, P. orbignyi (Castelnau) and P. yepezi Castex & Castello from six different countries, representing the eastern Pacific Ocean, Caribbean Sea, and river basins in South America (Rio Negro, Orinoco, and Maracaibo). The newly collected material provided additional specimens for morphological studies and molecular samples for subsequent phylogenetic analyses that allowed us to address the phylogenetic position of Anindobothrium and provide molecular and morphological evidence to recognize two additional species for the genus. The taxonomic actions that followed our analyses included the proposition of a new family, Anindobothriidae fam. n., to accommodate the genus Anindobothrium in the order Rhinebothriidea Healy, Caira, Jensen, Webster & Littlewood, 2009 and the description of two new species — one from the eastern Pacific Ocean, A. carrioni sp. n., and the other from the Caribbean Sea, A. inexpectatum sp. n. In addition, we also present a redescription of the type species of the genus, A. anacolum (Brooks, 1977) Marques, Brooks & Lasso, 2001, and of A. lisae Marques, Brooks & Lasso, 2001. We also discuss the paleogeographical events mostly linked with the diversification of the genus and the protocols adopted to uncover cryptic diversity in Anindobothrium.
FIGURE 6 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 6. Line drawings of Rhinebothrium reydai n. sp. A. Scolex (MIUP CR1, Holotype), B. Terminal, mature proglottid in which testes are atrophied (MZUSP 7931b, Paratype), C. Cirrus-sac (MZUSP 7931p, Paratype), D. Subterminal, mature proglottid (MZUSP 7931b, Paratype).
FIGURE 8 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 8. Micrographs of transversal histological sections of Rhinebothrium reydai n. sp. (MZUSP 7933a–7933d, Paratypes). A. Section at level of testes, B. Section at level of ovary. Abbreviations: Ed. Excretory duct, O. Ovary, T. Testis, U. Uterus, Vd. Vas deferens, Vit. Vitelline follicle.
FIGURE 3 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 3. Scanning electron micrographs of Rhinebothrium tetralobatum (MZUSP 7928–7929, Vouchers). A. Scolex, B. Proximal surface of anterior loculus, C. Proximal surface near centre of bothridium, D. Distal surface near centre of bothridium, E. Distal surface of transverse septa, F. Distal surface near longitudinal septum in anterior region of bothridium, G. Proximal surface in posterior region of bothridium, H. Surface of anterior portion of strobila.
FIGURE 5 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 5. Light micrograph of the holotype of Rhinebothrium reydai n. sp. from Styracura schmardae (MIUP CR1).
FIGURE 4 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 4. Micrographs of transverse histological sections of Rhinebothrium tetralobatum (MZUSP 7930a–7930c, Vouchers). A. Section at level of testes, B. Section at level of ovary. Abbreviations: Ed. Excretory duct, O. Ovary, T. Testis, U. Uterus, Vd. Vas deferens, Vit. Vitelline follicle.
FIGURE 2 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 2. Line drawings of Rhinebothrium tetralobatum. A. Scolex (HWML 110067, Voucher), B. Cirrus-sac, C. Subterminal, mature proglottid, D. Terminal, mature proglottid in which testes are atrophied (HWML 110071, Voucher).
FIGURE 7 in Species diversity of Rhinebothrium Linton, 1890 (Eucestoda: Rhinebothriidea) from Styracura (Myliobatiformes: Potamotrygonidae), including the description of a new species
FIGURE 7. Scanning electron micrographs of Rhinebothrium reydai n. sp. (MZUSP 7932, Paratype). A. Scolex, B. Proximal surface of anterior loculus, C. Proximal surface near centre of bothridium, D. Distal surface near centre of bothridium, E. Distal surface of transverse septa, F. Distal surface near longitudinal septum in anterior region of bothridium, G. Proximal surface in posterior region of bothridium, H. Surface of anterior portion of strobila.
FIGURE 4. Caulobothrium pieroi n in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 4. Caulobothrium pieroi n. sp. from Pseudobatos horkelii (Müller and Henle), line drawings. A—Mature worm (holotype MACN-Pa No. 779). B—Scolex (holotype MACN-Pa No. 779). C—Terminal proglottid (paratype MACN-Pa No. 780/1).
FIGURE 5. Caulobothrium pieroi n in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 5. Caulobothrium pieroi n. sp. from Pseudobatos horkelii (Müller and Henle), light micrographs of cross sections of a mature proglottid. A—Anterior to genital atrium. B—At the level of the genital atrium. C—posterior to the cirrus sac. D—At the level of the ovarian isthmus. Abbreviations: cs—cirrus sac, ov—ovary, t—testis, ud—uteroduct, ut—uterus, vf—vitelline follicle, vg—vagina, vod—ventral osmoregulatory duct.
FIGURE 2. Rhinebothrium quequense n in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 2. Rhinebothrium quequense n. sp. from Pseudobatos horkelii (Müller and Henle), scanning electron micrographs. A—Scolex, small letters indicate locations of detail shown in Figs. B, D and K. B—Detail of the anterior margin of bothridium including anteriomost loculi and transverse septum. C—Surface of loculus, gladiate spinitriches and acicular filitriches. D— Central constriction of bothridium. E—Proximal bothridial surface near bothridial margin, aristate gladiate spinitriches and capilliform filitriches. F—Proximal bothridial surface near stalk, large aristate gladiate spinitriches and capilliform filitriches. G—Surface of bothridial stalk, large aristate gladiate spinitriches and capilliform filitriches. H—Surface of transverse septum, aristate gladiate spinitriches and capilliform filitriches. I—Surface of apex of scolex, capilliform filitriches. J—Surface of cephalic peduncle, capilliform filitriches. K—Detail of posterior margin of bothridium, proximal surface.
FIGURE 1. Rhinebothrium quequense n in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 1. Rhinebothrium quequense n. sp. from Pseudobatos horkelii (Müller and Henle), line drawings. A—Mature worm (holotype MACN-Pa No. 777). B—scolex (paratype MACN-Pa No. 778/1). C—Terminal proglottid (holotype MACNPa No. 777). D—Detail of the terminal genitalia of a mature proglottid (holotype MACN-Pa No. 777).
FIGURE 3. Rhinebothrium quequense n in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 3. Rhinebothrium quequense n. sp. from Pseudobatos horkelii (Müller and Henle), light micrographs of cross sections of a mature proglottid. A—anterior to the genital atrium. B—at the level of the genital atrium showing the cirrus sac. C—at the level of the genital atrium showing the vagina. D—anterior to the ovarian isthmus. Abbreviations: cs—cirrus sac, dod—dorsal osmoregulatory duct, ov—ovary, t—testis, ut—uterus, vd—vas deferens, vf—vitelline follicle, vg—vagina, vod—ventral osmoregulatory duct.
FIGURE 6 in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 6. Light micrographs of Caulobothrium species from the southwestern Atlantic. A—Caulobothrium pieroi n. sp., detail of the anterior loculus with apical sucker (arrow) (holotype MACN-Pa No. 779). B—Caulobothrium pieroi n. sp., detail of the posterior loculus (double) (paratype MACN-Pa No. 780/2). C—Caulobothrium uruguayense, showing two columns of paired loculi (arrows) (paratype USNM No. 1371263). D—Caulobothrium ostrowskiae, anterior portion of bothridium showing a single anteriormost loculus (paratype USNM No. 1371264).
Fig. 11 in Morphological study of members of the genus Echeneibothrium (Cestoda: Rhinebothriidea: Echeneibothriidae) from rajiform skates of the Argentine Sea and analysis of the phylogenetic relationships within the family Echeneibothriidae
Fig. 11. Final phylogenetic tree. Relative Bremer supports are given above branches and symmetric resampling values higher than or equal to 70 are given below branches. Supports correspond to the highest values obtained for the following best K values: 1.632, 2.333, 6.143 or 9.000, under implied weighting.
Fig. 3 in Morphological study of members of the genus Echeneibothrium (Cestoda: Rhinebothriidea: Echeneibothriidae) from rajiform skates of the Argentine Sea and analysis of the phylogenetic relationships within the family Echeneibothriidae
Fig. 3. Scanning electron micrographs of Echeneibothrium cristinae sp. nov. from Bathyraja cousseauae. (A) Scolex, small letters indicate the location of details shown in Fig. 3C–H. (B) Distal bothridial surface. (C) Surface of middle region of the apical modification of scolex proper (AMSP). (D) Surface of anteriormost region of the AMSP. (E) Surface of posteriormost region of the AMSP (each arrowhead points to a cilium). (F) Bothridial stalk surface. (G) Detail of distal bothridial surface. (H) Proximal bothridial surface. (I) Surface of terminal mature proglottid.
Fig. 7 in Morphological study of members of the genus Echeneibothrium (Cestoda: Rhinebothriidea: Echeneibothriidae) from rajiform skates of the Argentine Sea and analysis of the phylogenetic relationships within the family Echeneibothriidae
Fig. 7. Scanning electron micrographs of Echeneibothrium multiloculatum Carvajal & Dailey, 1975 from Dipturus brevicaudatus. (A) Scolex, small letters indicate the location of details shown in Fig. 7B–D. (B) Distal bothridial surface. (C) Proximal bothridial surface. (D) Surface of anteriormost region of the apical modification of scolex proper (AMSP), small letter indicates the location of detail shown in Fig. 7E. (E) Detail of the surface of anteriormost region of the AMSP. (F) Neck surface.
Fig. 9 in Morphological study of members of the genus Echeneibothrium (Cestoda: Rhinebothriidea: Echeneibothriidae) from rajiform skates of the Argentine Sea and analysis of the phylogenetic relationships within the family Echeneibothriidae
Fig. 9. Line drawings of Echeneibothrium williamsi Carvajal & Dailey, 1975 from Dipturus brevicaudatus. (A) Scolex (voucher MACN-Pa No. 742/1). (B) Terminal mature proglottid (voucher MACN-Pa No. 742/1). (C) Cross section of terminal mature proglottid at the level of testes (voucher MACN-Pa No. 742/4). (D) Cross section of terminal mature proglottid at the level of ovarian isthmus (voucher MACN-Pa No. 742/4). (E) Detail of terminal genitalia in a terminal mature proglottid (voucher MACN-Pa No. 742/1). Abbreviations: amsp, apical modification of scolex proper; ao, apical organ; cs, cirrus sac; dod, dorsal osmorregulatory duct; ov, ovary; t, testes; ut, uterus; vd, vas deferens; vf, vitelline follicle; vg, vagina; vod, ventral osmoregulatory duct.
Fig. 5 in Morphological study of members of the genus Echeneibothrium (Cestoda: Rhinebothriidea: Echeneibothriidae) from rajiform skates of the Argentine Sea and analysis of the phylogenetic relationships within the family Echeneibothriidae
Fig. 5. Septal musculature of bothridium of Echeneibothrium spp. (A) Longitudinal section of bothridium of Echeneibothrium cristinae sp. nov. from Bathyraja cousseauae (paratype MACN-Pa No. 736/22). (B) Transverse section of bothridium of Echeneibothrium cristinae sp. nov. from Bathyraja cousseauae (paratype MACN-Pa No. 736/23). (C) Longitudinal section of bothridium of Echeneibothrium multiloculatum Carvajal & Dailey, 1975 from Dipturus brevicaudatus (voucher MACN-Pa No. 738). (D) Transverse section of bothridium of Echeneibothrium multiloculatum Carvajal & Dailey, 1975 from Dipturus brevicaudatus (voucher MACN-Pa No. 739). (E) Longitudinal section of bothriudium of Echeneibothrium williamsi Carvajal & Dailey, 1975 from Dipturus brevicaudatus (voucher MACN-Pa No. 743). Abbreviations: lmb, longitudinal muscle bundles; l, loculus; mls, medial longitudinal septum; mmb, marginal muscle bundles; ms, marginal septum; rm, radial muscle; tmb, transverse muscle bundles; ts, transverse septum.
Fig. 2 in Morphological study of members of the genus Echeneibothrium (Cestoda: Rhinebothriidea: Echeneibothriidae) from rajiform skates of the Argentine Sea and analysis of the phylogenetic relationships within the family Echeneibothriidae
Fig. 2. Line drawings of Echeneibothrium cristinae sp. nov. from Bathyraja cousseauae. (A) Whole mature worm (holotype MACN-Pa No. 734). (B) Terminal mature proglottid (paratype MACN-Pa No. 736/4). (C) Scolex (holotype MACN-Pa No. 734). (D) Detail of terminal genitalia in a terminal mature proglottid (paratype MACNPa No. 736/4). Abbreviations: amsp, apical modification of scolex proper; ao, apical organ; cs, cirrus sac; dod, dorsal osmorregulatory duct; ov, ovary; sr, seminal receptacle; t, testes; ut, uterus; vd, vas deferens; vf, vitelline follicle; vg, vagina.
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