| 1. | Anterior to these the presence of seven branchial pouches is evident.
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| 2. | The mantle forms a thin-edged flap over the branchial cavity.
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| 3. | The epipodial line contains generally cirrhi . The branchial plume is long.
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| 4. | These two semicircles form the funnel-shaped branchial crown.
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| 5. | The gill is composed of branchial ganglia and a series of folded lamellae.
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| 6. | The fertilized eggs will then move into the branchial chamber ( mantle cavity ).
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| 7. | Examples of detectable evidence of vestigially metameric structures include branchial arches and cranial nerves.
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| 8. | The mouth is at the apex of the funnel between the two branchial stalks.
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| 9. | The branchial grooves are matched on the inside by a series of paired gill pouches.
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| 10. | There are two, symmetrical branchial plumes.
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