. Dangerous marine animals. Marine animals. VALVES OR JAWS VALVE MUSCLES VENOM GLAND. STALK Fig. 25. Globiferous pedicellariae from the sea urchin, Salamacis bicolor Agassiz. This is representative of the venomous type of pedicellariae which are found in other species of sea urchins. (Kreuzinger) and if it is too strong to be held, the pedicellariae are torn from the test, or shell, but continue to bite the object. Detached pedicel- lariae may remain alive for several hours after being removed from the sea urchin. Medical Aspects. Penetration of the needle-sharp sea urchin spines may produce a


. Dangerous marine animals. Marine animals. VALVES OR JAWS VALVE MUSCLES VENOM GLAND. STALK Fig. 25. Globiferous pedicellariae from the sea urchin, Salamacis bicolor Agassiz. This is representative of the venomous type of pedicellariae which are found in other species of sea urchins. (Kreuzinger) and if it is too strong to be held, the pedicellariae are torn from the test, or shell, but continue to bite the object. Detached pedicel- lariae may remain alive for several hours after being removed from the sea urchin. Medical Aspects. Penetration of the needle-sharp sea urchin spines may produce an immediate and intense burning sensation. The pain is soon followed by redness, swelling, and an aching sen- sation. Numbness and muscular paralysis have been reported. Secondary infections are not uncommon. The sting from sea urchin pedicellariae may produce an imme- diate, intense, radiating pain, faintness, numbness, generalized muscular paralysis, loss of speech, respiratory distress, and in. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Halstead, Bruce W. Cambridge, Md. , Cornell Maritime Press


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Keywords: ., bookcentury1900, bookcollectionbiodive, booksubjectmarineanimals