| 1 |  | Alona sp. - a water flea Most chydorid species can readily be separated from other cladocerans by their characteristic shape and by having most of the first antennae covered by projections on the sides of the head. Alona...
by: Hugh Clifford Click Here for Details |
| 2 |  | Argulus biramosus Bere - a fish louse, dorsal view Branchiurans are ectoparasitic on fish. They are related to copepods. In Alberta there apparently is only one species, Argulus biramosus, found especially on lake whitefish and white suckers. Bes...
by: Hugh Clifford Click Here for Details |
| 3 |  | Argulus biramosus Bere - a fish louse, ventral view Argulus attaches to fish by its highly modified mouthparts, but the relationship is not permanentthe branchiuran can attach and reattach
Photograph: From page 172 of Clifford, Hugh F. 1991. A...
by: Hugh Clifford Click Here for Details |
| 4 |  | Artemia franciscana Kellogg; also called Artemia salina - a brine shrimp, ventral view Note the large triangular flattened blades at the distal end of this males second antennae, a feature of Artemia. Artemia is called the brine shrimp because specimens can live in inland waters w...
by: Hugh Clifford Click Here for Details |
| 5 |  | Artemiopsis stephanssoni Johansen - a fairy shrimp, ventral view: male: left, female: right Artemiopsis in not as common as some of the other anostracans of Alberta. Note the sickle-shaped second antennae of the male. Males are needed to identify most anostracans to species. The female ...
by: Hugh Clifford Click Here for Details |
| 6 |  | Bosmina sp. - a water flea Bosmina is often encountered in open water areas of lakes. Specimens have curved and immovable first antennae inserted at the front of the head. One species, Bosmina coregoni Baird, is found in N...
by: Hugh Clifford Click Here for Details |
| 7 |  | Branchinecta gigas Lynch (large) and Branchinecta mackini Dexter - fairy shrimps Branchinecta mackini (lower) is a relatively large fairy shrimp, about 25 mm in length. But it is dwarfed by its giant cousin, Branchinecta gigas, which can achieve a length of 100 mm. Branchinec...
by: Hugh Clifford Click Here for Details |
| 8 |  | Ceriodaphnia sp. - a water flea Several species of Ceriodaphnia are found in Alberta. The large second antennae are not obvious in this slide preparation but note the small first antenna beneath the head. Some species of Ceriod...
by: Hugh Clifford Click Here for Details |
| 9 |  | Cypris sp. - an ostracod or seed shrimp Ostracods are sometimes called seed shrimp because of their hard seed-like bivalve cover (the carapace), but most people call them ostracods. The photo specimen is about 2 mm in lengtha large sp...
by: Hugh Clifford Click Here for Details |
| 10 |  | Cyzicus mexicanus (Claus) (left valve removed) - a clam shrimp Externally, some conchostracans superficially resemble clams, hence the name clam shrimp, but removing the carapace reveals legs, the appendages. Clams dont have legs. In contrast to the carap...
by: Hugh Clifford Click Here for Details |
About
for Crustacea (in keywords).
