| 1 |  | Batrachobdella sp. (probably) picta (Verrill) - a freshwater leech Batrachobdella, another proboscis leech (Rhynchobdellida), is not common in Alberta. In other regions of North America, Batrachobdella picta specimens have been reported taking their blood meal f...
by: Hugh Clifford Click Here for Details |
| 2 |  | Dina sp. or Mooreobdella sp. - a worm leech Two additional genera of worm leeches in Alberta are Dina and Mooreobdella. The two genera have three or four pair of eyes. Non-specialists can find them difficult to tell apart, especially prese...
by: Hugh Clifford Click Here for Details |
| 3 |  | Erpobdella punctata (Leidy) - a worm leech Erpobdella punctata is another worm leech. Adults are about the same size as adult Nephelopsis, but Erpobdella’s pigmentation, with two or four longitudinal rows of dark spots (in fresh spe...
by: Hugh Clifford Click Here for Details |
| 4 |  | Glossiphonia complanata (Linnaeus) - a freshwater leech Glossiphonia complanata is probably the most collected leech by pond-net sampling in Alberta. Specimens have three pairs of eyes and characteristic pigmentation. The photo specimen is about 20 mm...
by: Hugh Clifford Click Here for Details |
| 5 |  | Helobdella fusca (Castle) - a freshwater leech This is the blotched form of Helobdella fusca. The photo specimen is about 12 mm in length. Helobdellids’ one pair of eyes are sufficiently separated to distinguish both eyes.
Photograp...
by: Hugh Clifford Click Here for Details |
| 6 |  | Helobdella fusca (Castle) - a freshwater leech Helobdella fusca, another rhynchobdellid, has different color forms. This is a striped form. Helobdella fusca specimens parasitize aquatic gastropods. The photo specimen is about 12 mm in length....
by: Hugh Clifford Click Here for Details |
| 7 |  | Helobdella stagnalis (Linnaeus) - a freshwater leech Helobdella stagnalis is one of most common leeches in Alberta. A small but conspicuous plate (scute), often red, on the anterior end of the dorsum will separate stagnalis from other leeches in Al...
by: Hugh Clifford Click Here for Details |
| 8 |  | Lumbriculus sp. or Stylodrilus sp. - aquatic earthworms Finally one that looks like an earthworm. The photo specimen is about 35 mm in length. A conspicuous reproductive feature of terrestrial earthworms, for example Lumbricus, is the clitellum, a per...
by: Hugh Clifford Click Here for Details |
| 9 |  | Mollibdella grandis (Verrill); also called Haemopis grandis - a jawed leech The other common jawed leech of Alberta is Mollibdella grandis. At one time both grandis and marmorata were in the genus Haemopis. The photo specimen is about 200 mm in length. Although neither P...
by: Hugh Clifford Click Here for Details |
| 10 |  | Nephelopsis obscura (Verrill) - a worm leech Another order of leeches found in Alberta is Pharyngobdellida. There is only one family, Erpobdellidae. Whereas rhynchobdellids usually have a small mouth through which a proboscis protrudes duri...
by: Hugh Clifford Click Here for Details |
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for Annelida (in keywords).
