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Subphylum Mandibulata. Class Crustacea. Subphylum Mandibulata. All members of this group bear mandibles on the third head segment that are modified for feeding Taxonomic Summary Phylum Arthropoda Subphylum Mandibulata Class Myriapoda Class Insecta Class Crustacea. Class Crustacea.

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subphylum mandibulata

Subphylum Mandibulata

Class Crustacea

Subphylum Mandibulata

subphylum mandibulata2
Subphylum Mandibulata
  • All members of this group bear mandibles on the third head segment that are modified for feeding
  • Taxonomic Summary
    • Phylum Arthropoda
      • Subphylum Mandibulata
        • Class Myriapoda
        • Class Insecta
        • Class Crustacea

Subphylum Mandibulata

class crustacea
Class Crustacea
  • Defining Characteristics
  • Crustacean Characteristics

Subphylum Mandibulata

crustacean segments appendages
Crustacean Segments & Appendages
  • The crustacean head consists of 5 segments fused tightly together
  • These segments bear five paired appendages
    • 2 pairs of antennae
    • 1 pair of mandibles
    • 2 pairs of maxillae

Subphylum Mandibulata

crustacean segments appendages5
Crustacean Segments & Appendages
  • Following segment is the thorax, which can have a variable amount of appendages
  • The abdomen may or may not have appendages

Subphylum Mandibulata

taxonomic summary
Taxonomic Summary
  • Class Crustacea
    • Subclass Cirripedia
    • Subclass Copepoda
    • Subclass Malacostraca
      • Order Stomatopoda
      • Order Euphausiacea
      • Order Isopoda
      • Order Amphipoda
      • Order Decapoda

Subphylum Mandibulata

subclass cirripedia
Subclass Cirripedia
  • Defining Characteristics
    • All species are highly modified for attachment to hard substrates
    • Thoracic limbs are modified as filtering cirri

Subphylum Mandibulata

haven t i seen you before
Haven’t I Seen You Before
  • Thought to be molluscs by early naturalists
    • Possess a shell that is secreted by “mantle tissue”
  • What makes barnacles members of the phylum Arthropoda?

Subphylum Mandibulata

barnacle anatomy
Barnacle Anatomy
  • Have a reduced head and 6 segmented thorax
    • Thorax - six pairs of feather like appendages which are used for suspension feeding

Subphylum Mandibulata

subclass copepoda
Subclass Copepoda
  • Defining Characteristics
    • Loss of abdominal appendages
  • Abundant in the plankton and benthic communities; but due to small size escape notice

Harpacticoid

Subphylum Mandibulata

cows of the sea

Calanoid

Cyclopoid

Cows of the Sea

Subphylum Mandibulata

subclass malacostraca
Subclass Malacostraca
  • Defining Characteristics
    • The head has 5 fused segments, thoracic with 8 segments, abdomen with 6-7 segments plus a telson
    • Appendages on the 6th abdominal segment are flattened to form uropods
  • Contains nearly 75% of all crustaceans

Subphylum Mandibulata

malacostraca characteristics
Malacostraca Characteristics

Subphylum Mandibulata

order stomatopoda
Order Stomatopoda

Subphylum Mandibulata

order euphausiacea
Order Euphausiacea
  • Krill, a small group of only 85 species
  • Have 8 pairs of walking feet instead of 5 like most decapods

Subphylum Mandibulata

order isopoda
Order Isopoda

Subphylum Mandibulata

order amphipoda
Order Amphipoda

Subphylum Mandibulata