WoRMS name details
Hepatoxylon squali Bosc, 1811
105350 (urn:lsid:marinespecies.org:taxname:105350)
unaccepted (synonym)
Species
marine
Bosc, L.A.G. (1811). Sur deux nouveaux genres de vers. <em>Nouveau Bulletin des Sciences par la Société Philomatique de Paris,.</em> An. 4 (51), v. 2, pp. 269-270. [details]
Taxonomy As far as I can tell: In 1929, Dollfus lists the known genera of trypanorhychs. Genus no. 3 is Hepatoxylon with H. squali...
Distribution southern Gaspe waters (Baie des Chaleurs, Gaspe Bay to American, Orphan and Bradelle banks; eastern boundary: eastern...
Taxonomy As far as I can tell: In 1929, Dollfus lists the known genera of trypanorhychs. Genus no. 3 is Hepatoxylon with H. squali Bosc as type species (p. 317).
Genus no 8 is Dibothriocephalus with D. lepidopi Blainville, 1828 as type species (p. 323) .
Then, on the same page, there is a footnote to say that lepidopi falls as a synonym of trichiuri Holten 1802, apparently because Holten got the name of the host wrong and it was the same host (Lepidopus) as Blainville’s.
In Dollfus, 1930 (actually published in 1931), Dollfus again lists the valid genera of trypanorhynchs, but there is no mention of Hepatoxylon, only Dibothriorhynchus with D. trichiuri (Holten, 1802) as the type species.
In 1942 (p. 86), he explains that in 1929 he thought that Hepatoxylon may have been a synonym of Dibothriocephalus (he may have meant that he thought this in 1930/1931), but that he had changed his mind and considered Dibothriocephalus to be a synonym of Hepatoxylon. And so, he takes the oldest species in the genus, H. trichiurid Holten, 1802 as the type species. QED.
I guess that does mean that the synonymy of H. squali with H. trichiuri is on p. 86 of Dollfus (1942), but you really have to read all three papers to sort this out.
I. Beveridge June, 2022 [details]
Genus no 8 is Dibothriocephalus with D. lepidopi Blainville, 1828 as type species (p. 323) .
Then, on the same page, there is a footnote to say that lepidopi falls as a synonym of trichiuri Holten 1802, apparently because Holten got the name of the host wrong and it was the same host (Lepidopus) as Blainville’s.
In Dollfus, 1930 (actually published in 1931), Dollfus again lists the valid genera of trypanorhynchs, but there is no mention of Hepatoxylon, only Dibothriorhynchus with D. trichiuri (Holten, 1802) as the type species.
In 1942 (p. 86), he explains that in 1929 he thought that Hepatoxylon may have been a synonym of Dibothriocephalus (he may have meant that he thought this in 1930/1931), but that he had changed his mind and considered Dibothriocephalus to be a synonym of Hepatoxylon. And so, he takes the oldest species in the genus, H. trichiurid Holten, 1802 as the type species. QED.
I guess that does mean that the synonymy of H. squali with H. trichiuri is on p. 86 of Dollfus (1942), but you really have to read all three papers to sort this out.
I. Beveridge June, 2022 [details]
Distribution southern Gaspe waters (Baie des Chaleurs, Gaspe Bay to American, Orphan and Bradelle banks; eastern boundary: eastern...
Distribution southern Gaspe waters (Baie des Chaleurs, Gaspe Bay to American, Orphan and Bradelle banks; eastern boundary: eastern Bradelle Valley); Prince Edward Island (from the northern tip of Miscou Island, N.B. to Cape Breton Island south of Cheticamp, including the Northumberland Strait and Georges Bay to the Canso Strait causeway) [details]
WoRMS (2025). Hepatoxylon squali Bosc, 1811. Accessed at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=105350 on 2025-04-17
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Nomenclature
original description
Bosc, L.A.G. (1811). Sur deux nouveaux genres de vers. <em>Nouveau Bulletin des Sciences par la Société Philomatique de Paris,.</em> An. 4 (51), v. 2, pp. 269-270. [details]
basis of record Bray, R.A. (2001). Cestoda, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 146-149 (look up in IMIS) [details]
basis of record Bray, R.A. (2001). Cestoda, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 146-149 (look up in IMIS) [details]
Taxonomy
source of synonymy
Dollfus, R.-P. (1942). Etudes critiques sur les Tetrarhynques du Museum de Paris. <em>Archives du Museum national d-Histoire naturelle.</em> 19: 1-466. [details]
Other
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
From editor or global species database
Taxonomy As far as I can tell: In 1929, Dollfus lists the known genera of trypanorhychs. Genus no. 3 is Hepatoxylon with H. squali Bosc as type species (p. 317). Genus no 8 is Dibothriocephalus with D. lepidopi Blainville, 1828 as type species (p. 323) .
Then, on the same page, there is a footnote to say that lepidopi falls as a synonym of trichiuri Holten 1802, apparently because Holten got the name of the host wrong and it was the same host (Lepidopus) as Blainville’s.
In Dollfus, 1930 (actually published in 1931), Dollfus again lists the valid genera of trypanorhynchs, but there is no mention of Hepatoxylon, only Dibothriorhynchus with D. trichiuri (Holten, 1802) as the type species.
In 1942 (p. 86), he explains that in 1929 he thought that Hepatoxylon may have been a synonym of Dibothriocephalus (he may have meant that he thought this in 1930/1931), but that he had changed his mind and considered Dibothriocephalus to be a synonym of Hepatoxylon. And so, he takes the oldest species in the genus, H. trichiurid Holten, 1802 as the type species. QED.
I guess that does mean that the synonymy of H. squali with H. trichiuri is on p. 86 of Dollfus (1942), but you really have to read all three papers to sort this out.
I. Beveridge June, 2022 [details]
Unreviewed
Distribution southern Gaspe waters (Baie des Chaleurs, Gaspe Bay to American, Orphan and Bradelle banks; eastern boundary: eastern Bradelle Valley); Prince Edward Island (from the northern tip of Miscou Island, N.B. to Cape Breton Island south of Cheticamp, including the Northumberland Strait and Georges Bay to the Canso Strait causeway) [details]Habitat epipelagic, superficial endoparasite found in Salmo salar. [details]
