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Dogfish (Squalus), Preserved for Dissection

Preserved Dogfish (Squalus) for Dissection
Preserved Dogfish (Squalus) for Dissection
Preserved Dogfish (Squalus) for dissection with vascular system is representative of the class of Chondrichthyes—the cartilaginous. The relatively large animals lack a boney skeleton and possess a two-chambered heart and a spiral valve. PM1090 (plain, 18–22") is temporarily unavailable due to an industry wide shortage.

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Squalus sp. An important specimen in the study of comparative anatomy. The dogfish is representative of the class Chondrichthyes—the cartilaginous fish. Key features beautifully demonstrated by these relatively large animals include the lack of a bony skeleton and having a two-chambered heart and spiral valve—an intestinal feature that greatly increases the absorptive surface and efficiency of the digestive system. These specimens are embalmed under controlled pressure through the caudal artery. Measurements from snout to tip of tail. 

Injection Notes: Double-injected Squalus have red latex injected into the arterial system and yellow latex injected into the hepatic system. Triple-injected Squalus are prepared as doubles with the addition of blue latex in the systemic veins.