Thursday, September 8, 2011

phylum of invertebrates


The 30 phylum of the invertebrates with their species are listed below.
S.No
         Phylum
Number of species
S.No
      phylum
Number of species
1
protozoa
50000
16
Sipunculida
275
2
Mesozoa
50
17
Mollusca
80000
3
Porifera
10000
18
Echiurida
60
4
Coeleonterata
11000
19
Annelida
7000
5
Ctenophora
90
20
Tardigrada
180
6
Platyhelminthes
15000
21
Onychophora
65
7
Nemertinea
750
22
pentastomida
70
8
Acanthocephala
300
23
Arthropoda
900000
9
Entoprocta
60
24
Phoronida
15
10
Rotifera
1500
25
Ectoprocta
4000
11
Gastrotricha
175
26
Brachopoda
260
12
Kinorhyncha
100
27
Echinodermata
6000
13
Nematoda
10000
28
Chaetognatha
50
14
Nematomorpha
250
29
Pogonophora
80
15
Priapulida
8
30
Hemichordata
80

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