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Flashcards in lophotrochozoa Deck (28):
1

what is a lophotrochozoa

type of prostomes

2

what two main groups of lophotrochozoa are there

spiralians and lophophorates

3

all phyla of lophotrochozoa

platyhelminth

rotifera

bryozoa

brachiopoda

phoronida

nemertea

annelida

mollusca

4

lopphore structures

covered with cillia which trap particles int he water and transprot marticles to mout to filter feed

5

trophophore larvae

larvae stage with ring of cilia (spiralia)
- sgemented worms, coelmicand spiral cleavage
found in molluscs and annelids for example

6

examples of species with trophophore larvae

earthworms
leeches
bristleworms
myzostomids

7

echuiran

borelia vindis; larvae decides gender by where it lands

male; paraistic bag of testicles

adult isnt segmented; only in embryonic developed looks like trochophore larvae

8

sipuncula

phascalian stroma

weird looking trochophore larvae

similar genes to annelids

9

key features of mollsucs

coelmic cavaity
spiral cleavage
trophphore larvae

radula (rasping tongue)
mantel
shell
gills
muscular foot

10

molluscs groups

bivalvia
gastropods
cephalopods
polyplacophora

aplacapophyla and monoplacophora (ancient)

11

bivalvia

type of mollusc: oysters and mussles

12

gastropods

type of mollusc: slugs and snails

13

cephalopods

type of mollusc: squid, octopus and cuttlefish

14

polyplacophora

type of mollusc: chiton

15

aplacophora

type of mollusc: (ancient) caudoforesta

16

monoplacophora

type of mollusc: neopillana(ancient)

17

nemertea characteristics

ghoslike structure

no cavaity

adults grow out of larvae; first meal is outer layer
many have sharp spikes

18

example of nemertea

flatworms and unsgemmented worms

19

polyclad flatworms

may have a trophopre larvae

20

tuverlleian flatworms

nemertea; polyclad turbellena

maritegella

t

21

parastic flatworsm

cestode; tape worm

trematatod- liver fluke

22

other lophotrochozoan examples

phornids

braciopods (lamp shells)

bryozoan (moss animal)

23

connections between lophophorate braciopods and trochophore annelids

- early developends suggest tjey might be both dervied from a trochopphore larvae

24

rotifers

some groups are asexual and believed to have derived from a trochophore

25

haikierilids

brachiopods and annelid ancestor 500 mya possibly

26

obsrure lophotgrochozan examples

rotifers
gnathostomata
microchanthozoa

27

gnathifera

had jaws
may constitute group in lophophorates
have belly with hair

28

what phyla have trochophore larvae

annelids

molluscs

sipunalids

maybe nemerteans and plathelminth