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Freshwater Invertebrate Underwater Pictures, Page 2

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Underwater Photo Page:1234...14
These are glossosomatids, Jason.  They are probably Glossosoma nigrior, though it is possible that we are looking at mixed species.  The ones to the right with their aggregate of similar sized grains are classic Glossosoma, while the ones to the left with the large anchor pebbles could possibly be Agapetus.  Regardless, they're all commonly referred to as saddle case makers.  In this picture: Caddisfly Family Glossosomatidae (Saddle-case Makers). From Spring Creek in Wisconsin.
These are glossosomatids, Jason. They are probably Glossosoma nigrior, though it is possible that we are looking at mixed species. The ones to the right with their aggregate of similar sized grains are classic Glossosoma, while the ones to the left with the large anchor pebbles could possibly be Agapetus. Regardless, they're all commonly referred to as saddle case makers.

In this picture: Caddisfly Family Glossosomatidae (Saddle-case Makers).
LocationSpring Creek
Date TakenJun 22, 2006
Date AddedJul 1, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
In this picture: Insect Order Coleoptera (Beetles). From the West Branch of the Delaware River in New York.
Date TakenMay 13, 2007
Date AddedJun 5, 2007
AuthorTroutnut
CameraPENTAX Optio WPi
The large caddisfly case (really less than 1/2 inch) is a Brachycentridae larva.  The other cases are actually the protective sheaths of black fly (Simuliidae) pupae.  The two antler-like pieces sticking out of each one are not legs, but antennal sheaths.  In this picture: Caddisfly Family Brachycentridae (Apple Caddis and Grannoms) and True Fly Family Simuliidae (Black Flies). From Spring Creek in Wisconsin.
The large caddisfly case (really less than 1/2 inch) is a Brachycentridae larva. The other cases are actually the protective sheaths of black fly (Simuliidae) pupae. The two antler-like pieces sticking out of each one are not legs, but antennal sheaths.

In this picture: Caddisfly Family Brachycentridae (Apple Caddis and Grannoms) and True Fly Family Simuliidae (Black Flies).
LocationSpring Creek
Date TakenJun 22, 2006
Date AddedJul 1, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
Several fast-swimming Siphlonurus nymphs blend in very well with the silt in this slow backwater along a trout stream.  In this picture: Mayfly Genus Siphlonurus (Gray Drakes). From the Namekagon River in Wisconsin.
Several fast-swimming Siphlonurus nymphs blend in very well with the silt in this slow backwater along a trout stream.

In this picture: Mayfly Genus Siphlonurus (Gray Drakes).
Date TakenMay 15, 2004
Date AddedJan 25, 2006
AuthorTroutnut
I spotted this very large leech freely tumbling, and occasionally stopping, along the bottom of a clear, cool trout stream.  I paid careful attention later and spotted two more like it, but this one was the largest -- probably over 7 inches stretched out.

There is one other picture of it.  In this picture: Animal Class Clitellata-Hirudinae (Leeches). From the Namekagon River in Wisconsin.
I spotted this very large leech freely tumbling, and occasionally stopping, along the bottom of a clear, cool trout stream. I paid careful attention later and spotted two more like it, but this one was the largest -- probably over 7 inches stretched out.

There is one other picture of it.

In this picture: Animal Class Clitellata-Hirudinae (Leeches).
Date TakenJun 21, 2006
Date AddedJul 1, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
This tiny sculpin is the size of a mid-sized mayfly nymph.  In this picture: Fish Order Cottidae (Sculpins). From Fishing Creek in Pennsylvania.
This tiny sculpin is the size of a mid-sized mayfly nymph.

In this picture: Fish Order Cottidae (Sculpins).
Date TakenMay 26, 2007
Date AddedJun 5, 2007
AuthorTroutnut
CameraPENTAX Optio WPi
Cased caddis larvae blanket this section of stream bottom.  In this picture: Insect Order Trichoptera (Caddisflies). From Eighteenmile Creek in Wisconsin.
Cased caddis larvae blanket this section of stream bottom.

In this picture: Insect Order Trichoptera (Caddisflies).
Date TakenApr 14, 2004
Date AddedJan 25, 2006
AuthorTroutnut
In this picture: Arthropod Order Decapoda (Crayfish). From the Namekagon River in Wisconsin.
Date TakenJun 14, 2006
Date AddedJun 30, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
This is my favorite underwater picture so far. It shows a bunch of Simuliidae (black fly) larvae clinging to a rock and swinging in the fast current. There are also at least four visible mayfly nymphs, probably in the family Baetidae.  In this picture: True Fly Family Simuliidae (Black Flies) and Mayfly Family Baetidae (Blue-Winged Olives). From Eighteenmile Creek in Wisconsin.
This is my favorite underwater picture so far. It shows a bunch of Simuliidae (black fly) larvae clinging to a rock and swinging in the fast current. There are also at least four visible mayfly nymphs, probably in the family Baetidae.

In this picture: True Fly Family Simuliidae (Black Flies) and Mayfly Family Baetidae (Blue-Winged Olives).
Date TakenMar 19, 2004
Date AddedJan 25, 2006
AuthorTroutnut
In this picture: Mayfly Genus Siphlonurus (Gray Drakes). From the Namekagon River in Wisconsin.
Date TakenMay 15, 2004
Date AddedJan 25, 2006
AuthorTroutnut
Underwater Photo Page:1234...14
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