1 / 9

Phylum Mollusca (5 Classes) Scaphopoda Cephalopoda – Head foot

Phylum Mollusca (5 Classes) Scaphopoda Cephalopoda – Head foot Pelecypoda (Bivalvia) – Hatchet foot Polyplacophora – Many plates on a foot Gastropoda – Stomach foot. Class Scaphopoda - “tusk shells”.

elvis-kirby
Download Presentation

Phylum Mollusca (5 Classes) Scaphopoda Cephalopoda – Head foot

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Phylum Mollusca (5 Classes) Scaphopoda Cephalopoda – Head foot Pelecypoda (Bivalvia) – Hatchet foot Polyplacophora – Many plates on a foot Gastropoda – Stomach foot

  2. ClassScaphopoda- “tusk shells” Wampum Indians, head in the sand, captacula, eat foramniferans, respire through mantle as have no gills.

  3. I see Spot very well I make make spots all over me in order to hide! I swim faster than Spot My arms are derived from the Gastropod foot ClassCephalopoda - Octopuses, Squid, Nautilus, Cuttlefish…beak, pen, ink sac, chromatophores, jet propulsion……….dissection.

  4. Name of oldest part? D P A V ClassBivalviaor Pelecypoda- clams, scallops etc. filter feeders, bivalved shells…… dissection

  5. Umbo D P A V ClassBivalviaorPelecypoda- clams, scallops etc. filter feeders, bivalved shells…… dissection

  6. Dorsal Ventricle Heart Auricle Bulbus arteriosus Anterior Adductor muscles Gills Posterior Mouth Visceral Mass Excurrent & Incurrent siphons Foot Gills or ctenidium – Each = 2 demibranchs Mantle Ventral Schematic Diagram of a Clam Dissection

  7. Anus Gills in mantle cavity Mantle Radula in mouth Head Chitons radula, 8 plates ClassPolyplacophora

  8. Subclass Prosobranchia – pointed shells! Aquatic GILLS Dextral Subclass Pulmonata – rounded shells! Land snails and slugs LUNG ClassGastropoda- snails, conchs torsion/coiling, radula, operculum.

  9. Subclass Pulmonata Slug SubclassOpisthobranchia Nudibranch Egg Sac Detorsion If it looks strange, chances are its something from Class Gastropoda

More Related