 In this presentation, Phylum Phoronida, horseshoe worm is described. After watching this you will learn the characteristics and Examples Phoronis architecha, Phoronopsis, epistome, a lophophore-bearing mesosome, and an elongate trunk, metasome ectoprocts and cycliophorans. The brief description of Phylum Phoronida along with reproduction and fertilization also described. Its relationship with brachiopods as sister groups within Lophotrochozoa. It is part of the BS Zoology Course Animal diversity.

1. Phylum Phoronida Dr. Muhammad Moosa Abro
@Zoology by Miler and Harley
@earthlife.net

2. Examples Phoronis architecha,
Phoronopsis spp.
Approximately 20 species.
horseshoe worm, vermiform, marine,
and benthic tube dwellers: that live in
tubes secreted by special glands
either are solitary or occur in groups
of many thousands of individuals
They use a lophophore in filter
feeding.
Phylum Phoronida Dr. Muhammad Moosa Abro

3. Their bodies (about 2 cm long) are divided
into a flaplike epistome, a lophophore-
bearing mesosome, and an elongate trunk
(metasome).
The gut is U-shaped and the anus is close to
the mouth.
reproduce sexually.
There are scanty fossil records for Phoronida.
Molecular phylogenies usually depict
phoronids and brachiopods as sister groups
within Lophotrochozoa
Phylum Phoronida Dr. Muhammad Moosa Abro

4. References
4
1. Miller, A.S. and Harley, J.B. ; 1999 , 2002., 2007, 2009, 2012 & 2016 Zoology, 4th , 5th, 6th, 7th,
8th , 9th& 10th Edition (International), Singapore : McGraw Hill.
2. Hickman, C.P., Roberts, L.C/, AND Larson, A., 2018. INTEGRATED PRINCIPLES OF ZOOLOGY,
15th Edition (International), Singapore: McGRAW-Hill