Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Redescription of adults and description of developmental stages of Trebius shiinoi Nagasawa, Tanaka & Benz, 1998 (Copepoda, Siphonostomatoida, Trebiidae) from the Japanese angelshark, Squatina japonica Bleeker, 1858

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Crustaceana

A redescription of Trebius shiinoi Nagasawa, Tanaka & Benz, 1998 and descriptions of its developmental stages, nauplius I and II, copepodid I, II (female), III (female), IV (female) and V (male) are presented based on specimens obtained from the Japanese angelshark, Squatina japonica Bleeker, 1858, captured at Seto and Kushimoto, Wakayama Prefecture, Japan, in 1971-1972. The family is the second representative of the Siphonostomatoida known to have nauplii with spatulate balancers, next to Caligidae. However, T. shiinoi also differs significantly from caligids in lacking a chalimus phase in its life cycle. The postnaupliar development of the species involves a single morphological leap, which takes place through a moult from copepodid II to III, and then development proceeds linearly up to the adult. The majority of the copepodids I found appear to have already been grasped by an adult male each (precopulatory mate guarding). Copepodid II exhibits sexual activity by the possession of a spermatophore receptacle in the female. Copepodids after copepodid III are caligiform, having marginal membranes on the cephalothrax, as in the adult. Copulation takes place at least in copepodid III and/or IV, and the spermatozoa discharged are stored in the genital antra to later fertilize the ova in the adult. Judging from the fact that in the adult female a spermatophore receptacle is absent, it is deducible that no copulation is taking place in the adult stage. This reproductive process is unique in the Copepoda.

Affiliations: 1: Izawa Marine Biological Laboratory, 795-16 Kannonji, Tsu, Mie 514-0062, Japan


Full text loading...


Data & Media loading...

1. Boxshall G. A. , 1990. "Precopulatory mate guarding in copepods". Bijdr. Dierk., Vol 60: 209- 213.
2. Cabral R. , Coste F. , Raibaut A. , 1984. "Cycle évolutif de Lernanthropus kroyeriVan Beneden, 1851, Copépode branchial hématophage du Loup Dicentrachus labrax(Linné, 1758) dans des populations naturelles et en élevage". Ann. Parasitol. Hum. Comp., Vol 59: 189- 207.
3. Carton Y. , 1968. "Développment de Cancerilla tubulataDalyell parasite de l’ophiure Amphipholis squamataDella Chiaje". Crustaceana (Supplement), Vol 1: 12- 28.
4. Cressey R. , Boxshall G. , 1989. " Kabatarina pattersoni, a fossile parasitic copepod (Dichelesthiidae) from a Lower Creataceous fish". Micropaleontol., Vol 35: 150- 167, pls. 1-10.
5. Deets G. B. , Dojiri M. , 1989. "Three species of TrebiusKrøyer, 1838 (Copepoda: Siphonostomatoida) parasitic on Pacific elasmobranchs". Syst. Parasitol., Vol 13: 81- 101.
6. Froese R. , Pauly D. (eds.), 2013. FishBase. Available online at
7. Humes A. G. , Gooding R. U. , 1964. "A method for studying the external anatomy of copepods". Crustaceana, Vol 6: 238- 240.
8. Huys R. , Boxshall G. A. , 1991. Copepod evolution: 1- 468. ( The Ray Society, London).
9. Ivanenko V. N. , Ferrari F. D. , 2003. "Redescription of adults and description of copepodid development of Dermatomyzon nigripes(Brady & Robertson, 1876) and of Asterocheres lilljeborgiBoeck, 1859 (Copepoda: Siphonostomatoida: Asterocheridae)". Proc. Biol. Soc. Wash., Vol 116: 661- 691.
10. Ivanenko V. N. , Ferrari F. D. , Smurov A. V. , 2001. "Nauplii and copepodids of Scottomyzon gibberum(Copepoda: Siphonostomatoida: Scottomyzontidae, a new family), a symbiont of Asterias rubens(Asteroidea)". Proc. Biol. Soc. Washington, Vol 114: 237- 261.
11. Izawa K. , 1969. "Life history of Caligus spinosusYamaguti, 1939 obtained from cultured yellow tail, Seriola quinqueradiataT. & S. (Crustacea: Caligoida)". Rep. Fac. Fish. Pref. Univ. Mie, Vol 6: 127- 157.
12. Izawa K. , 2004. "The copepodid and two chalimus stages of Caligus latigenitalisShiino, 1954 (Copepoda, Siphonostomatoida, Caligidae), parasitic on Japanese blacksea bream, Acanthopagrus schlegeli ". Contr. biol. Lab. Kyoto Univ., Vol 29: 329- 341.
13. Izawa K. , 2008. " Amaterasia amanoiwatoinov. gen., nov. sp. (Copepoda, Siphonostomatoida, Amaterasidae nov. fam.), with gall-forming juveniles parasitic on the fins of a balistid actinopterygian fish". Crustaceana, Vol 81: 1331- 1346.
14. Izawa K. , 2009. "Free-living stages of the parasitic copepod, Kroyeria elongataPillai, 1967 (Siphonostomatoida, Kroyeriidae) reared from eggs". Crustaceana, Vol 82: 439- 447.
15. Izawa K. , 2010. "Free-living stages of the parasitic copepod, Gangliopus pyriformisGerstaecker, 1854 (Siphonostomatoida, Pandaridae) reared from eggs". Crustaceana, Vol 83: 829- 837.
16. Izawa K. , 2012. "Free-living stages of three species of parasitic copepods (Siphonostomatoida, Eudactylinidae) reared from eggs, with discussion on the ontogenetic features in the Siphonostomatoida". Crustaceana, Vol 85: 1589- 1611.
17. Johnson S. C. , Albright L. J. , 1991. "The developmental stageges of Lepeophtheirus salmonis(Krøyer, 1837) (Copepoda: Caligidae)". Can. Journ. Zool., Vol 69: 929- 950.
18. Kabata Z. , 1966. "Copepoda parasitic on Australian fishes, V. Genus Dissonus(Dissonidae)". Ann. Mag. nat. Hist., (13) Vol 9: 211- 226.
19. Kabata Z. , 1976. "Early stages of some copepods (Crustacea) parasitic on marine fishes of British Colombia". Journ. Fish. Res. Bd Canada, Vol 33: 2507- 2525.
20. Kabata Z. , 1979. Parasitic Copepoda of British fishes: 1- 486. ( The Ray Society, London).
21. Kabata Z. , Khodorevsky O. A. , 1977. "The copepodid stage of Dichelesthium oblongus(Abildgaard, 1794), a copepod parasite of acipenserid fishes". Parasitologiya, Vol 11: 236- 240. [In Russian, with English summary.]
22. Kazachenko V. N. , Korotaeva V. D. , Kurochkin Yu. V. , 1972. "Parasitic crustaceans of some fishes of the Pacific Ocean". Izvestiya Tikhookeanskogo Nauchno-issledovatel’skogo Instituta Rybnogo Khozyaistvai Okeanografii (TINRO), Vol 81: 224- 238. [In Russian.]
23. Kim I.-H. , 1993. "Developmental stages of Caligus punctatusShiino, 1955 (Copepoda: Caligidae)". In: Boxshall G. A. , Defaye D. (eds.), Pathogens of wild and farmed fish: sealice: 16- 29. ( Ellis Horwood, New York, NY).
24. Lewis A. G. , 1963. "Life history of the caligid copepod Lepeophtheirus dissimulatusWilson, 1905 (Crustacea: Caligoida)". Pacific Sci., Vol 17: 195- 242.
25. Lin C.-L. , Ho J.-S. , Chen S.-N. , 1997. "Development of Caligus multispinosusShen, a copepod parasitic on the black sea bream ( Acanthopagrus schlegeli) cultured in Taiwan". Journ. nat. Hist., London, Vol 31: 1483- 1500.
26. Nagasawa K. , Tanaka S. , Benz G. W. , 1998. " Trebius shiinoin. sp. (Trebiidae: Siphonostomatoida: Copepoda) from uteri and embryos of the Japanese angelshark ( Squatina japonica) and the clouded angelshark ( Squatina nebulosa), and redescription of Trebius longicaudatus ". Journ. Parasitol., Vol 84: 1218- 1230.
27. Ohtsuka S. , Takami I. , Venmathi Maran B. A. , Ogawa K. , Shimono T. , Fujita Y. , Asakawa M. , Boxshall G. A. , 2009. "Developmental stages and growth of Pseudocaligus fuguYamaguti, 1936 (Copepoda: Siphonostomatoida; Caligigae) host-specific to puffer". Journ. nat. Hist., London, Vol 43: 1779- 1804.
28. Schram T. A. , 1979. "The life history of the eye-maggot of the sprat, Lernaeenicus sprattae(Sowerby) (Copepoda, Lernaeoceridae)". Sarsia, Vol 64: 279- 316.
29. Shiino S. M. , 1954. "Copepods parasitic on Japanese fishes 2. On two new species of the family Trebidae". Rep. Fac. Fish. Pref. Univ. Mie, Vol 1: 247- 259.
30. Shiino S. M. , 1963. "On Trebius longicaudatusShiino (Copepoda: Caligoida) found on the fetus of Squatina nebulosaRegan". Publs Seto Mar. Biol. Lab., Vol 11: 403- 407.
31. Tang D. , Benz G. , Nagasawa K. , 2012. "Description of the male of Prosaetes rhinodontis(Wright, 1876) (Crustacea, Copepoda, Siphonostomatoida), with a proposal to synonymize Cecropidae Dana, 1849 and Amaterasidae Izawa, 2008 with Pandaridae Milne Edwards, 1840". Zoosymposia, Vol 8: 7- 19.
32. Tang D. , Izawa K. , Uyeno D. , Nagasawa K. , 2010. "Pseudohatschekiidae, a new family for Pseudohatschekia branchiostegiYamaguti, 1939 (Crustacea: Copepoda: Siphonostomatoida) from Branchiostegusspp. (Teleostei: Perciformes: Malacanthidae) in Japanese water, with descriptions of the early developmental stages of P. branchiostegi ". Syst. Parasitol., Vol 77: 215- 231.
33. Walter S. , Boxshall G. A. , 2013. The world copepods. Available online at

Article metrics loading...



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Crustaceana — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation