This thesis consists
of
four
parts,
and
is based
on
a survey of the helminth parasites
of Hertfordshire
birds.
Part I. (Section 1), deals
with
four
species
of
trematodes
found in Hertfordshire birds, Lyperosomum
longicauda
Rudolphi,
1809, Lutztrema monenteron
Price
&
McIntosh,
1935,
Dicrocoelioides petiolatum
Railliet,
1900
and
Brachylaemus
fuscatus (Rudolphi, 1819) var.
nicolli
(Witenberg,
1925).
14 now host records and 1 new
record
for this
country
are confirmed.
Part I. (Section 2), A
new trematode,
Reesella
doviensis
gen, ct sp. nov., from the Oystercatcher is
described.
(Reprint from J. Helminth. ,
30,
81-86. )
Part II deals with sixteen species
of
cestodes
recovered
from Hertfordshire birds. Descriptions
are
given of
Choanotaenia unicoronata Fuhrmann,
1908,
Dilepis
undula Schrank, 1788, Anomotaenia constricta
Molin,
1858,
A.
borealis.
Krabbe, 1869, Paricterotaenia parina
Dujardin,
1845,
Anonchotaenia globata von
Linstow,
1879,
Hymenolepis
serpentulus Rudolphi, 1810, H.
stylosa
Rudolphi,
1809,
H. amphitricha Rudolphi, 1819, H. farciminosa.
Goez,
1782,
H. fringillarum Rudolphi,
1809,
Aploparaksis
dujardinii
Krabbe, 1869, and Raillietina (Skrjabinia)
bonini Megnin,
1899. Three new forms are also described,
Anomotaenia verulamii
n.
sp.
from the mistlethrush, Paricterotaenia albani n. sp.
from
the starling and P. mariae n. sp.
from the
robin.
A total of 13 new host records
and
22
new records
for this country are confirmed.
Part III, (Section 1). deals
with
seven
species
of
nematodes found in Hertfordshire
birds. Descriptions
are given of Porrocaecum ensicaudatum
Zeder, 1800,
Syngamus
trachea Montagu 1811, S. merulae
Baylis,
1926,
Capillaria
ovopunctata von Linstow, 1873,
C. resecta
Dujardin,
1845,
C. colubae Rudolphi, 1819, and
C. exilis
Dujardin,
1845.
One new host record and two new
records
for this
country
were confirmed.
Part III. (Section 2), Descriptions
are
given
of
nine further species of Capillaria
recovered from
birds in
Great Britain. They are Capillaria
anatis
Schrank,
1790,
C. contorta Creplin, 1839, C. logicollis.
Mehlis, 1831,
C. nyrocinarum Madsen, 1945, C. obsignata Madsen,
1945,
C. retusa Railliet, 1895, C.
spinulosa
von
Linstow 1803,
C. tenuissima Rudolphi, 1803, and
C. triloba
von
Linstow,
1875;
Four new host records and
ten
new
records
for this
country
were confirmed,
Part IV. The results of
a survey
of the
helminth parasites of Hertfordshire
birds
are
tabulated.
A total of 571 birds representing 22
species
were
examined. Of the birds examined
396
(69.3%)
were
found
to be infected with helminths.
During the survey 28 new
host
records and
25
new
records for this country were
confirmed.
A total of 32 new host records
and
35
new
records
for Great Britain are recorded
in this thesis