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TABLE OF CONTENTS

Introduction

Checklist Of Freshwater Calanoid Copepods Of B.C.

Key To The Species Of Freshwater Calanoid Copepods Of B.C. (Males only)

References

List of Tables

Table 1. The B.C. calanoid copepod species, listed under their usual freshwater habitat.

Table 2. Numbers of setae on segments of the left 1^st antenna of B.C. diaptomids (after Light 1938, Wilson & Light 1951, Wilson 1953, 1954, 1955, 1959). Note: Some antenna may be anomolous.

Species Figures

Figure 1. Leptodiaptomus nudus (Marsh). Characteristics of male and female adult calanoid, with major parts of the body indicated. (a) male dorsal view; (b) male lateral view, left side; (c) female dorsal view, with egg sacs; (d) female lateral view; (a-d) Cobb L., B.C.

Figure 2. Leptodiaptomus nudus (Marsh). Diaptomid male and female 5th legs, showing the position of the 5th legs on the body in lateral view, and male and female 5th legs with parts identified. (a) Posterior part of male diaptomid body, showing location of 5th legs, right side. (b) left 5th leg, exopod 2, detail of inner and outer processes; (c) male 5th legs, posterior view, (b-c) after Wilson (1959); (d) posterior part of female diaptomid body, showing location of 5th legs, right side; (e) female 5th legs, posterior view (redrawn after Shih & Maclellan 1977); (a-c) (redrawn after Ravera and Tonolli 1956).

Figure 3. Leptodiaptomus nudus (Marsh). Male. Left and right 1st antennae, and spines on right 1st antenna, with features identified. (a) right 1st antenna, segments 10-14, showing spines on segments 10, 11 and 13, setae not included; (b) left 1st antenna, segments 1-25; (c) right 1st antenna, segments 1-25. (a-c) (redrawn after Shih & Maclellan 1977).

Figure 4. Acanthodiaptomus denticornis (Wierzejski). Male. (a) dorsal view, Bickle L., B.C.; with antennae from slide, Big La Salle L., B.C.; (b) right 1st antenna, segments 23-25 (redrawn after Wilson 1959); (c) 5th legs, anterior view, Chubb L., B.C.; (d) 5th legs, posterior view, Big La Salle L., B.C.

Figure 5. Epischura nevadensis Lilljeborg. Male. (a) dorsal view, Shuswap L., B.C., with antennae from slide, Cheslatta L., B.C.; (b) 5th legs, anterior view, Chubb L., B.C.; (c) 5th legs, posterior view (redrawn after Wilson 1959).

Figure 6. Heterocope septentrionalis Juday & Muttkowski. Male. (a) dorsal view, Fraser L., B.C., with antennae from slide, Chief L. B.C.; (b) 5th legs, anterior view, Chief L. B.C.; (c) 5th legs, posterior view (redrawn after Wilson 1959).

Figure 7. Eurytemora affinis (Poppe). Male. (a) dorsal view, Nitinat L., B.C.; (b) lateral view (redrawn after Katona 1971); (a-b) (with antennae redrawn after Gardner & Szabo 1982); (c) 5th legs, anterior view, Nitinat L. B.C.; (d) 5th legs, posterior view (modified after Wilson 1959).

Figure 8. Senecella calanoides Juday. Male. (a) dorsal view, Cayuga L., NY; (b) 5th legs, anterior view; (c) 5th legs, posterior view; (b-c) Cayuga L., NY.

Figure 9. Aglaodiaptomus forbesi Light. Male. (a) right 1st antenna, segments 23-25 (redrawn after Light 1938); (b) 5th legs, posterior view (redrawn after Wilson 1959).

Figure 10. Aglaodiaptomus leptopus (Forbes). Male. (a) dorsal view (redrawn after Pinel-Alloul & Lamoureux 1988); (b) 5th legs, anterior view (redrawn after Pinel-Alloul & Lamoureux 1988); (c) 5th legs, posterior view (redrawn after Wilson 1959).

Figure 11. Hesperodiaptomus kiseri (Kincaid). Male. (a) detail of left 5th leg, exopod 2, anterior view; (b) 5th legs, posterior view; (a-b) (redrawn after Wilson 1959); (c-d) right 1st antenna, segments 8-14; (c) (redrawn after Kincaid 1953); (d) Boitano Ph. Pond, B.C.; (e) right 1st antenna, segments 10-14, Boitano Ph. Pond, B.C.

Figure 12. Hesperodiaptomus eiseni Lilljeborg. Male. (a) 5th legs anterior view; (b) 5th legs posterior view; (c) detail left 5th leg, exopod 2, posterior view; (a-c) Lake Lagunita, CA; (d) 5th legs, posterior view (redrawn after Wilson 1959).

Figure 13. Hesperodiaptomus arcticus Marsh. Male. (a-b) 5th legs, posterior view, (a) (redrawn after Wilson 1959); (b) Clearwater L., B.C.; (c) detail of left 5th leg, exopod 2, posterior view; Clearwater L., B.C.; (d-e) right 1st antenna with antennal process on segment 23; (d) Clearwater L., B.C.; (e) (after Rylov 1922).

Figure 14. Hesperodiaptomus hirsutus Wilson. Male. (a-b) 5th legs, Westwick 1 pond, B.C. (a) anterior view, (b) posterior view; (c) detail left 5th leg, exopod 2 anterior view; (d) 5th legs posterior view; (c-d) (redrawn after Wilson 1959).

Figure 15. Hesperodiaptomus caducus Light. Male. (a) 5th legs, anterior view, St. Anselm's pond, B.C.; (b) detail left 5th leg, anterior view (redrawn after Wilson 1959); (c) 5th legs, posterior view (redrawn after Wilson 1959); (d) left 1st antenna, segments 2-11 (redrawn after Wilson 1959).

Figure 16. Hesperodiaptomus nevadensis Light. Male. (a-b) 5th legs, posterior view, (a) White L. B.C., (b) (redrawn after Wilson 1959).

Figure 17. Hesperodiaptomus novemdecimus Wilson. Male. (a) 5th legs, anterior view; (b) 5th legs, posterior view; (a-b) (redrawn after Wilson 1959); (c) left 1st antenna, segments 13-20, Springhouse Pond, B.C.; (d) detail left leg, exopod 2 in part, anterior view (redrawn after Wilson 1959).

Figure 18. Hesperodiaptomus kenai Wilson. Male. (a) 5th legs, anterior view, Sumas L., B.C.; (b) 5th legs, posterior view (redrawn after Wilson 1959); (c) left 1st antenna, segments 10-20 , Sumas L., B.C.; (d) detail left leg, exopod 2 anterior view (redrawn after Wilson 1959).

Figure 19. Hesperodiaptomus franciscanus (Lilljeborg). Male. (a-b) 5th legs, posterior view; (a) Quatansta L., B.C. (b) (redrawn after Wilson 1959); (c) detail left leg, exopod 2 posterior view (redrawn after Wilson 1959).

Figure 20. Onychodiaptomus sanguineus (Forbes). Male. (a) 5th legs, anterior view (redrawn after Humes & Wilson 1951); (b) 5th legs, posterior view; (c) detail left leg, exopod 2 posterior view; (b-c) (redrawn after Wilson 1959).

Figure 21. Onychodiaptomus hesperus Wilson & Light. Male. (a-b) 5th legs, posterior view; (a) (redrawn after Wilson & Light 1951); (b) (redrawn after Wilson 1959); (c-e) detail left leg, exopod 2; (c) anterior view; (d) posterior view; (c-d) (redrawn after Wilson & Light 1951); (e) posterior view (redrawn after Wilson 1959).

Figure 22. Skistodiaptomus pallidus (Herrick). Male. (a) 5th legs, anterior view, Nikomekl R., B.C.; (b) 5th legs, posterior view; (c) detail left leg, exopod 2, posterior view ; (b-c) (redrawn after Wilson 1959).

Figure 23. Leptodiaptomus pribilofensis (Juday & Muttkowski). Male. (a) dorsal view, Chilkat Pass pond, B.C.; (b-c) 5th legs, posterior view; (b) Chilkat Pass pond, B.C.; (c) Heart L., B.C.

Figure 24. Skistodiaptomus oregonensis (Lilljeborg). Male. (a) 5th legs, anterior view; (b) 5th legs, posterior view; (a-b) Como L., B.C.; (c) detail left leg, exopod 2 posterior view; (d) 5th legs, posterior view; (c-d) (redrawn after Wilson 1959).

Figure 25. Leptodiaptomus tyrrelli (Poppe). Male. (a) 5th legs, anterior view; (b) 5th legs, posterior view; (a-b) Venables L., B.C.; (c-d) detail left leg, exopod 2 anterior view; (c) Venables L., B.C. (d) (redrawn after Wilson 1959).

Figure 26. Leptodiaptomus ashlandi (Marsh). Male. (a) detail left leg, exopod 2 posterior view; (b) 5th legs, posterior view; (c) right 1st antenna, segments 23-25, showing antennal process; (a-c) (redrawn after Wilson 1959).

Figure 27. Leptodiaptomus insularis Kincaid. Male. (a-b) 5th legs, posterior view; (a) right 5th leg twisted slightly, Marie L., B.C.; (b) (redrawn after Wilson 1959); (c-d) right 1st antenna, segments 23-25, showing antennal process; (c) Marie L., B.C.; (d) (redrawn after Wilson 1959).

Figure 28. Leptodiaptomus nudus (Marsh). Male. (a) dorsal view, Copp L., B.C. (b-c) right 1st antenna, segments 23-25; (b) (redrawn after Shih & Maclellan 1977); (c) (redrawn after Wilson 1959); (d-e) 5th legs, posterior view; (d) (redrawn after Shih & Maclellan 1977); (e) (redrawn after Wilson 1959).

Figure 29. Leptodiaptomus connexus Light. Male. (a-b) 5th legs; (a) anterior view (redrawn after Wilson 1959); (b) posterior view (redrawn after Anderson 1970); (c-d) right 1st antenna, segments 23-25; (c-d) (redrawn after Anderson 1970); (e-f) right 1st antenna, segments 8-13; (e) (redrawn after Wilson 1959); (f) (redrawn after Anderson 1970).

Figure 30. Leptodiaptomus novamexicanus (Herrick). Male. (a-b) 5th legs, posterior view; (a) Kootenay L., B.C.; (b) (redrawn after Wilson 1959); (c-e) right 1st antenna, segments 23-25; (c-d) Kootenay L., B.C.; (e) (redrawn after Wilson 1959).

Figure 31. Leptodiaptomus sicilis (Forbes). Male. (a) 5th legs, posterior view (redrawn after Smith & Fernando 1978); (b) detail left 5th leg, exopod 2 anterior view; (c) 5th legs, posterior view (redrawn after Wilson 1959); (d-e) right 1st antenna, segments 23-24; (d) (redrawn after Smith & Fernando 1978); (e) (redrawn after Wilson 1959).

Figure 32. Leptodiaptomus siciloides (Lilljeborg). Male. (a-b) 5th legs, posterior view; (a) (redrawn after Anderson 1970); (b) (redrawn after Wilson 1959); (c-d) right 1st antenna, segments 8-13; (c) redrawn after Wilson 1959); (d) (redrawn after Anderson 1970); (e-f) right 1st antenna, segments 23-25; (e) (redrawn after Anderson 1970); (f) (redrawn after Wilson 1959).

Figure 33. Leptodiaptomus signicauda (Lilljeborg). Male. (a) right 1st antenna, segments 23-24 (redrawn after Lilljeborg 1889); (b) 5th legs posterior view (redrawn after Wilson 1959); (c) Leptodiaptomus moorei Wilson, right 1st antenna, segments 8-14 (redrawn after Wilson 1959).

 

ACKNOWLEDGMENTS

A March 1994 draft of the key was reviewed at that time by the late T.E. Bowman and T.G. Northcote. We are indebted to Launi Lucas, Zoology, UBC, for help with the final illustrations and final preparation of the text. F.K. Sandercock helped with collecting and final MS preparation. The comments made by N.T. Johnston were appreciated.

Office facilities and the use of microscopes at MELP, Fisheries Branch, UBC, were provided for G.A.S. by A.R. Facchin and A.F. Tautz. Collection loans and access to the late M.S. Wilson's B.C. collection records (MSW, in litt.) from the Smithsonian Institute, NMNH, were arranged for us by the late T.E. Bowman. Collection loans from RBCM, Victoria, B.C. were obtained through G.D. Green. Frequent reference has been made to Wilson (1959).

Funding was provided from RIC with the support of R. Nordin, MELP, Water Branch, Victoria.

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