Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter April 13, 2018

A new species of Chondracanthus (Cyclopoida: Chondracanthidae) parasitic on deep-sea Dibranchus spongiosa(Lophiiformes: Ogcocephalidae) from the Eastern Central Pacific

Samuel Gómez, Hugo Aguirre-Villaseñor and Francisco Neptali Morales-Serna
From the journal Acta Parasitologica


A total of 228 sampling stations were visited for benthic fauna during a series of oceanographic cruises in the Gulf of California, west coast of the Baja California Peninsula, and Eastern Central Pacific from year 1991 to 2014. Among others, three fish species of the genus Dibranchus were caught in 28 stations. Of these, D. spongiosa was the most common and abundant. Close inspection of this fish revealed the presence of a new species of parasitic copepod, Chondracanthus dibranchi sp. nov., found in the gill cavity of seven specimens of D. spongiosa. Chondracanthus dibranchi sp. nov. seems to be morphologically related to C. psetti and C. janebennettae. The female of C. janebennettae can be separated from these other two congeners by the general shape of the head and abdomen, by the number of teeth on the mandibular blade, and by the general body shape. Chondracanthus psetti and C. dibranchi sp. nov. share the relative lengths of legs 1 and 2, the relative size and shape of the genito-abdomen, and the conical attenuating lateral processes on the trunk of the female. The females of these two species can be separated by the shape and armature of the antennule, shape of the antenna, the claw of the maxilliped, the rami of leg 1 and 2 and posterior processes, the head region, and by the position of the lateral processes of the trunk. An amendment to Tang’s (2007) key to the species of Chondracanthus is proposed.


This study was financed by the Programa de Apoyo a Proyectos de Investigación e Innovación Tecnológica (PA-PIIT) of the Dirección General de Asuntos del Personal Académico of the Universidad Nacional Autónoma de México (PAPIIT-DGAPAUNAM), project IN202116. Ship time of the research cruises Talud III-XV on board R/V “El Puma” was supported by the Universidad Nacional Autónoma de México and CONACyT (Talud XV). Sampling campaigns were partly supported by CONACyT (Projects 31805-N and 179467) and PAPIIT-DGAPA-UNAM (Project IN-217306-3). We are grateful to Edgar Cruz Acevedo and Carolina Salas Singh for their invaluable assistance during Talud XV and XVI cruises, and to all scientists, students and crew members for their help and support during the Talud III-XII, and XV.


Boxshall G.A. 1998. Host specificity in copepod parasites of deep-sea fishes. Journal of Marine Systems, 15, 215–223. 10.1016/S0924-7963(97)00058-4Search in Google Scholar

Boxshall G.A. 2005. Copepoda (copepods). In: (Ed K. Rohde) Marine Parasitology. CSIRO Publishing, Collingwood, pp. 123–138Search in Google Scholar

Boxshall G.A., Halsey S.H. 2004. An introduction to copepod diversity. The Ray Society, London, pp. 966Search in Google Scholar

Bradbury M.G. 1999. A review of the fish genus Dibranchus with descriptions of new species and a new genus, Solocisquama. Proceedings of the California Academy of Sciences, 51, 259–310Search in Google Scholar

Braicovich P.E., Lanfranchi A.L., Incorvaia I.S., Timi J.T. 2013. Chondracanthid copepod parasites of dories (Zeiformes: Zeidae) with the description of a new species of Chondracanthus from waters off northern Argentina. Folia Parasitologica, 60, 359–364. 10.14411/fp.2013.037Search in Google Scholar PubMed

Bush A.O., Lafferty K.D., Lotz J.M., Shostak A.W. 1997. Parasitology meets ecology on its own terms: Margolis et al. revisited. Journal of Parasitology, 83, 575–583. 10.2307/3284227Search in Google Scholar

Castro-Aguirre J.L., Moncayo-López M.E. 1976. Sobre la presencia de Dibranchus nudivomer (Garman) (Pis.: Ogcocephalidae) en la Costa Occidental de México, con notas y observaciones biológicas. Revista de la Sociedad Mexicana de Historia Natural, 37, 307–322. (In Spanish)Search in Google Scholar

Causey D. 1953. Parasitic Copepoda from Grand Isle, Louisiana. Occasional papers of the Marine Laboratory, Louisiana State University, 7, 1–18Search in Google Scholar

Causey D. 1960. Parasitic Copepoda from Mexican coastal fishes. Bulletin of Marine Science of the Gulf and Caribbean, 10, 323–337Search in Google Scholar

Cruz-Acevedo E., Salas-Singh C, Aguirre-Villaseñor H. 2017. Distribution of Dibranchus species (Pisces: Ogcocephalidae) from the Eastern Central Pacific and their relationship with environmental factors. Marine Biodiversity, in Google Scholar

Delaroche F. 1811. Sur des animaux vivant sur les branchies des poissons. Nouveau Bulletin des Sciences, Société Philomatique de Paris, 2, 270–272.Search in Google Scholar

Garman S. 1899. Reports on an exploration off the west coasts of Mexico, Central and South America, and off the Galapagos Islands, in charge of Alexander Agassiz, by the U.S. Fish Commission Steamer Albatross, during 1891, Lieut. Commander Z.L. Tanner, U.S.N., commanding. 26. The fishes. Memoirs of the Museum of Comparative Zoology, at Harvard College, Cambridge, Mass., 24, 1– in Google Scholar

Gilbert C.H. 1890. A preliminary report on the fishes collected by the steamer Albatross on the Pacific coast of North America during the year 1889, with descriptions of twelve new genera and ninety-two new species. Proceedings of the United States National Museum, 13, 49–12610.5479/si.00963801.13-797.49Search in Google Scholar

Girard C. F. 1854. Observations upon a collection of fishes made on the Pacific coast of the United States, by Lieut. W. P. Trowbridge, U.S.A., for the museum of the Smithsonian Institution. Proceedings of the Academy of Natural Sciences of Philadelphia, 7, 142–156Search in Google Scholar

Ho J.–S. 1971. Parasitic copepods of the family Chondracanthidae from fishes of Eastern North America. Smithsonian Contributions to Zoology, 87, Smithsonian Institution Press, Washington, pp. 3910.5479/si.00810282.87Search in Google Scholar

Ho J.–S. 1972. Copepods of the family Chondracanthidae (Cyclopoida) parasitic on South African marine fishes. Parasitology, 65, 147–15810.1017/S0031182000044322Search in Google Scholar PubMed

Ho J.–S. 1977. Parasitic copepods of the family Chondracanthidae from fishes of the South–Eastern Pacific (Crustacea, Copepoda). Steenstrupia, 4, 157–165Search in Google Scholar

Ho J.–S. 1991. Redescription of Chondracanthus zei Delaroche (Copepoda, Poecilostomatoida) parasitic on Zeus faber L. in the Sea of Japan, with a preliminary review of the genus. Report of the Sado Marine Biological Station, 21, 49–79Search in Google Scholar

Kabata Z. 1979. Parasitic Copepoda of British fishes. The Ray Society, London, pp. 468Search in Google Scholar

Kabata Z. 1992. Copepods parasitic on fishes. In: (Eds D.M. Kermack, R.S.K. Barnes and J.H. Crothers) Synopses of the British Fauna (New Series). Universal Book Services/Dr. W. Backhuys, The Netherlands, pp. 1–264Search in Google Scholar

Kröyer H. 1863. Bidrag til Kundskab om Snyltekrebsene. Naturhistorisk tidsskrift, 3, 75–426Search in Google Scholar

Milne Edwards H. 1840. Ordre des copépodes. In: (Ed H. Milne Edwards) Histoire naturelle des crustacés, comprenant l’anatomie, la physiologie et la classification de ces animaux. Vol. 3. Imprimerie de Fain et Thunot, Paris, pp. 411–529Search in Google Scholar

Morales–Serna F.N., Gómez S., Pérez–Ponce de León G.P. 2012. Parasitic copepods reported from Mexico. Zootaxa, 3234, 43–6810.11646/zootaxa.3234.1.2Search in Google Scholar

Morales–Serna F.N., Rubio–Godoy M., Gómez S. 2011. Seasonality of parasitic copepods on bullseye puffer, Sphoeroides annulatus (Pisces: Tetraodontidae), from the northwestern coast of Mexico. Journal of Parasitology, 97, 565–573. 10.1645/GE-2638.1Search in Google Scholar PubMed

Oakley C.L. 1930. The Chondracanthidae (Crustacea: Copepoda); with a description of five new genera and one new species. Parasitology, 22, 182–20110.1017/S0031182000011057Search in Google Scholar

Peters W. 1876. Über eine neue, mit Halieutaea verwandte Fischgattung, Dibranchus, aus dem Atlantischen Ocean. Monatsberichte der Königlichen Pereussischen Akademie der Wissenschaften zu Berlin, 1875, 736–742Search in Google Scholar

Rameshkumar G., Ravichandran S., Venmathi Maran B.A. 2014. Occurrence of parasitic copepods in Carangid fishes from Parangipettai, Southeast coast of India. Journal of Parasitic Diseases, 38, 317–323. 10.1007/s12639-013-0251-3Search in Google Scholar PubMed PubMed Central

Rathbun R. 1886. Description of parasitic Copepoda belonging to the genera Pandarus and Chondracanthus (with seven plates). Proceedings of the Unites States National Museum, 9, 310–32410.5479/si.00963801.9-572.310Search in Google Scholar

Shiino S.M. 1955. Copepods parasitic on Japanese fishes. 9. Family Chondracanthidae, subfamily Chondracanthinae. Report of the Faculty of Fisheries, Prefectural University of Mie, 2, 70–111Search in Google Scholar

Tang D., Andrews M., Cobcroft J.M. 2007. The first chondracanthid (Copepoda: Cyclopoida) reported from cultured finfish, with a revised key to the species of Chondracanthus. Journal of Parasitology, 93, 788–795. 10.1645/GE-1121R.1Search in Google Scholar PubMed

Walter T.C., Boxshall G. 2017. World of copepods database. Accessed at on 2017-02-09Search in Google Scholar

Wilson C.B. 1908. North American parasitic copepods: a list of those found upon the fishes of the Pacific coast, with descriptions of new genera and species. Proceedings of the United States National Museum, 35, 431–48110.5479/si.00963801.35-1652.431Search in Google Scholar

Yuniar A., Palm H.W., Walter T. 2007. Crustacean fish parasites from Segara Anakan Lagoon, Java, Indonesia. Parasitology Research, 100, 1193–1204. 10.1007/s00436-006-0391-9Search in Google Scholar PubMed

Received: 2017-7-28
Revised: 2018-2-12
Accepted: 2018-2-15
Published Online: 2018-4-13
Published in Print: 2018-6-26

© 2018 W. Stefański Institute of Parasitology, PAS

Scroll Up Arrow