Jean De Reszke
(1850-1925) Polish operatic singer. Renowned internationally for the high quality of his singing and…
Greek star
Uraniscus, the star-like decoration of a Greek coffer ceiling. From the Propylea in Athens. Gold on…
Clam Shell
Mechanism for opening and shutting a clam shell, note the internal and external hinge ligament..
Clam
Cross section of the body of a clam, through the heart. Arrows indicate water current through the gills.
Clam
Cross section of the body of a clam, through the posterior adductor muscles. Arrows indicate water current…
Clam
Young clam, still within the egg membrane. m, adductor muscle; t, hooks by which it attaches itself…
Razor Shell Clam
The razor shell clam has a shell somewhat resembling in shape and size the handle of a razor.
Mackerel
The perch is typical of a large group of fishes, all of which have spiny rays. The perch is widely distributed…
Hydra
If undisturbed, the body and tentacles may occasionally sway gently. If disturbed, a hydra usually shortens…
Starfish
The common starfish is a five rayed star. The central body is called the disk and the arms are the rays.
Starfish
The common starfish is a five rayed star. The central body is called the disk and the arms are the rays.…
Brittlestar
The arms of the brittlestar are more flexible than those of the starfish. They move by lateral movements…
Sea Lily
An ancient crinoid, sea lilies are flowerlike, with branching arms surrounding the central mouth.
Stone Lily
An ancient crinoid, stone lilies are flowerlike, with branching arms surrounding the central mouth.
Sea-star
Sea-stars are Echinoderms. The order Ophiuroides is closely related to starfishes. The arms of sea stars…