two types of spoiled in Hernania. zoology
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Answer:
Shape, Size and Colouration:
The body of Herdmania pallida is roughly oblong in outline, narrower at its attached than at its free end. At its free end, it is provided with two external openings—the branchial and atrial apertures. The average size of the adult is about 9.5 cm long, 7 cm broad and 4 cm thick. Older animals may even attain to a size of 12 x 8 x 4 cm, while an exceptionally large measures 13 x 8 x 4.5 cm. The foot, when present, may attain a length of as much as 3 to 4 cms. The general colour of the body in a fresh specimen is pink.
The presence of bright red patches, formed of terminal knobs (ampullae) in the blood vessels of the test, is a characteristic feature of Herdmania. The test is soft and leathery. It is more or less transparent in a young animal, but in an adult becomes usually opaque. The general surface of the test is much corrugated all over with lines, some shallow and others fairly deep, running in a criss-cross manner.
Explanation: