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Supplemental description of Stephanoprora ornata Odhner, 1902 (Digenea: Echinochasmidae) infecting the Nile crocodile, Crocodylus niloticus (Crocodylidae) from Namibia with emendation of Mesorchis Dietz, 1909 and a phylogenetic analysis – CORRIGENDUM

Published online by Cambridge University Press:  07 March 2025

K. Cajiao-Mora Open the ORCID record for K. Cajiao-Mora [Opens in a new window] ,
H.R. Dutton ,
F.J. Jacobs ,
P.C. Beytell ,
E.C. Netherlands ,
L.H. DuPreez  and
S.A. Bullard
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Abstract

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Corrigendum
Information
Journal of Helminthology , Volume 99 , 2025 , e44
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.
Copyright
© The Author(s), 2025. Published by Cambridge University Press

Due to a printing error, the museum voucher numbers and GenBank accession numbers were omitted from the article.

Figure 1. Stephanoprora ornata Odhner, 1909 (Digenea: Echinochasmidae) (Voucher USNM 1743978) infecting the intestine of a Nile crocodile, Crocodylus niloticus Laurenti, 1768 (Crocodylia: Crocodylidae) from the Kavango River, Namibia. Scale value beside bar. Ventral view. Whole body. Abbreviations: anterior testis (at); cecum terminalia (ct); collar (c); common genital pore (cgp); dextral cecum (dc); dextral vitelline duct (dvd); oesophagus (oe); oesophageal bifurcation (oeb); ovary (ov); pharynx (p); ventral sucker (vs); vitellarium (v).

Figure 2. Stephanoprora ornata Odhner, 1909 (Digenea: Echinochasmidae) infecting the intestine of a Nile crocodile, Crocodylus niloticus Laurenti, 1768 (Crocodylia: Crocodylidae) from the Kavango River, Namibia. Scale value beside bar. (a) Anterior third of body including male genitalia. Lateral view of voucher USNM 1743979. (b) Second third of body including female genitalia. Ventral view of voucher USNM 1743980. Abbreviations: anterior testis (at); cirrus (ci); cirrus sac (cs); collar corner spines (ccs); common genital pore (cgp); dextral vitelline duct (dvd); egg (eg); Laurer’s canal (Lc); Mehlis’ gland (Mg); oesophagus (oe); oötype (oö); oral sucker (os); ovary (ov); pharynx (p); pre-pharyngeal oesophagus (poe); prostatic cells (pc); seminal vesicle (sv); uterine seminal receptacle (usr); ventral sucker (vs).

Figure 3. Anterior end of body of echinochasmids with 26, 24, 22, and 20 collar spines. (a) Stephanoprora ornata Odhner, 1909 (Digenea: Echinochasmidae; 26 collar spines) infecting the intestine of a Nile crocodile, Crocodylus niloticus Laurenti, 1768 (Crocodylia: Crocodylidae) from the Kavango River, Namibia (USNM 1743978). (b) Museum voucher of Mesorchis pseudoechinatus (Olsson, 1876) Dietz,1909 (Digenea: Echinochasmidae; 22 collar spines) infecting the slender-billed gull Chroicocephalus genei (Brème, 1839) (Aves: Laridae) from the Kherson region, Ukraine (HWML101865). (c) Museum voucher of Echinochasmus coaxatus Dietz, 1909 (Digenea: Echinochasmidae; 24 collar spines) infecting the eared grebe Podiceps nigricollis Brehm, 1831 (Aves: Podicipedidade) from the Kherson region, Ukraine (HWML 101859). (d) Museum voucher of Echinochasmus donaldsoni Beaver, 1941 (Digenea: Echinochasmidae; 20 collar spines) infecting the pied-billed grebe Podilymbus podiceps (Linnaeus, 1758) (Aves: Podicipedidade) from North Dakota, USA (HWML 101861). Abbreviations: collar corner spines (ccs); collar dorsal spines (cds); collar lateral spines (cls); nerve commissure (nc); pharynx (p); pre-pharyngeal oesophagus (poe).

Figure 4. Maximum likelihood phylogenetic trees. Values aside nodes are posterior probability obtained with BI and bootstrap percentage obtained with ML, respectively. Scalebar is in substitutions per site. GenBank accession numbers are in parenthesis following each taxon. Type species are indicated by asterisk (*). The newly generated sequence of Stephanoprora ornata Odhner, 1909 (Digenea: Echinochasmidae) is highlighted in bold. Labels along vertical bars represent the number of collar spines (cs). (a) Large subunit ribosomal DNA phylogeny. (b) Internal Transcribed Spacer region 2 phylogeny.

Find below the missing information regarding the museum voucher numbers deposited in the National Museum of Natural History’s Invertebrate Zoology Collection (USNM, Smithsonian Institution, Washington, DC) and GenBank accession numbers:

Results section

Light microscopy of three adult specimens: USNM collection nos. 1743978, 1743979, and 1743980.

Figure 1: Voucher USNM 1743978.

Figure 2 (a): Lateral view of voucher USNM 1743979.

Figure 2 (b): Ventral view of voucher USNM 1743980.

Figure 3 (a): Voucher USNM 1743978.

GenBank accession numbers: PV090853 (28S) and PV097237 (ITS2).

References

Cajiao-Mora, K, Dutton, HR, Jacobs, FJ, Beytell, PC, Netherlands, EC, DuPreez, LH, Bullard, SA (2025) Supplemental description of Stephanoprora ornata Odhner, 1902 (Digenea: Echinochasmidae) infecting the Nile crocodile, Crocodylus niloticus (Crocodylidae) from Namibia with emendation of Mesorchis Dietz, 1909 and a phylogenetic analysis. Journal of Helminthology 99:e20. doi:10.1017/S0022149X25000100CrossRefGoogle ScholarPubMed
Figure 0

Figure 1. Stephanoprora ornata Odhner, 1909 (Digenea: Echinochasmidae) (Voucher USNM 1743978) infecting the intestine of a Nile crocodile, Crocodylus niloticus Laurenti, 1768 (Crocodylia: Crocodylidae) from the Kavango River, Namibia. Scale value beside bar. Ventral view. Whole body. Abbreviations: anterior testis (at); cecum terminalia (ct); collar (c); common genital pore (cgp); dextral cecum (dc); dextral vitelline duct (dvd); oesophagus (oe); oesophageal bifurcation (oeb); ovary (ov); pharynx (p); ventral sucker (vs); vitellarium (v).

Figure 1

Figure 2. Stephanoprora ornata Odhner, 1909 (Digenea: Echinochasmidae) infecting the intestine of a Nile crocodile, Crocodylus niloticus Laurenti, 1768 (Crocodylia: Crocodylidae) from the Kavango River, Namibia. Scale value beside bar. (a) Anterior third of body including male genitalia. Lateral view of voucher USNM 1743979. (b) Second third of body including female genitalia. Ventral view of voucher USNM 1743980. Abbreviations: anterior testis (at); cirrus (ci); cirrus sac (cs); collar corner spines (ccs); common genital pore (cgp); dextral vitelline duct (dvd); egg (eg); Laurer’s canal (Lc); Mehlis’ gland (Mg); oesophagus (oe); oötype (oö); oral sucker (os); ovary (ov); pharynx (p); pre-pharyngeal oesophagus (poe); prostatic cells (pc); seminal vesicle (sv); uterine seminal receptacle (usr); ventral sucker (vs).

Figure 2

Figure 3. Anterior end of body of echinochasmids with 26, 24, 22, and 20 collar spines. (a)Stephanoprora ornata Odhner, 1909 (Digenea: Echinochasmidae; 26 collar spines) infecting the intestine of a Nile crocodile, Crocodylus niloticus Laurenti, 1768 (Crocodylia: Crocodylidae) from the Kavango River, Namibia (USNM 1743978). (b) Museum voucher of Mesorchis pseudoechinatus (Olsson, 1876) Dietz,1909 (Digenea: Echinochasmidae; 22 collar spines) infecting the slender-billed gull Chroicocephalus genei (Brème, 1839) (Aves: Laridae) from the Kherson region, Ukraine (HWML101865). (c) Museum voucher of Echinochasmus coaxatus Dietz, 1909 (Digenea: Echinochasmidae; 24 collar spines) infecting the eared grebe Podiceps nigricollis Brehm, 1831 (Aves: Podicipedidade) from the Kherson region, Ukraine (HWML 101859). (d) Museum voucher of Echinochasmus donaldsoni Beaver, 1941 (Digenea: Echinochasmidae; 20 collar spines) infecting the pied-billed grebe Podilymbus podiceps (Linnaeus, 1758) (Aves: Podicipedidade) from North Dakota, USA (HWML 101861). Abbreviations: collar corner spines (ccs); collar dorsal spines (cds); collar lateral spines (cls); nerve commissure (nc); pharynx (p); pre-pharyngeal oesophagus (poe).

Figure 3

Figure 4. Maximum likelihood phylogenetic trees. Values aside nodes are posterior probability obtained with BI and bootstrap percentage obtained with ML, respectively. Scalebar is in substitutions per site. GenBank accession numbers are in parenthesis following each taxon. Type species are indicated by asterisk (*). The newly generated sequence of Stephanoprora ornata Odhner, 1909 (Digenea: Echinochasmidae) is highlighted in bold. Labels along vertical bars represent the number of collar spines (cs). (a) Large subunit ribosomal DNA phylogeny. (b) Internal Transcribed Spacer region 2 phylogeny.