Two new species of Echinobothrium van Beneden, 1849 (Cestoda: Diphyllidea) from the Persian Gulf

Autor:
Haseli, M.; Malek, M.; Palm, H.W.; Ivanov, V.A.
In:

Systematic Parasitology

Bandangabe: 82
Auflage: 3
Ergaenzung: DOI 10.1007/s11230-012-9362-y
Seite: 201 - 209
Jahr: 2012

Einordung:
Institut: Professur Aquakultur und Sea-Ranching

Abstract:
Two new species of diphyllidean cestodes
are described from the Persian Gulf, Echinobothrium
persiense n. sp. from Rhinobatos punctifer Compagno
& Randall and Echinobothrium hormozganiense n.
sp. from Mustelus mosis Hemprich & Ehrenberg.
E. persiense is the first record of a species of
Echinobothrium van Beneden, 1849 from R. punctifer
and these two new species increase the number of
diphyllideans known from the Persian Gulf from one
to three. The number of apical hooks of E. persiense
(hook formula: {5–6 6/5 5–6}) is distinct from all
other species in the genus except for E. affine Diesing,
1863, E. harfordi McVicar, 1976, E. bonasum
Williams & Campbell, 1980, E. fautleyae Tyler &
Caira, 1999, E. syrtense (Neifar, Tyler & Euzet, 2001)
Tyler, 2006 (emend), E. chisholmae Jones & Beveridge,
2001, E. tetabuanense Ivanov & Caira, 2012,
E. sematanense Ivanov & Caira, 2012 and E. weipaense
Ivanov & Caira, 2012. Echinobothrium persiense
can be distinguished from all other species of the
genus with 11 apical hooks by a combination of the
following features: armed cephalic peduncle, testes
arranged in a single column, lateral hooklets arranged
in two groups, U-shaped ovary, cephalic peduncle
length (124–181 lm), genital pore and cirrus-sac
position, and by having 10–14 spines per row on the
cephalic peduncle. Echinobothrium hormozganiense
has a hook formula of {12–15 16/15 12–15} and is
similar to E. musteli Pintner, 1889, E. notoguidoi
Ivanov, 1997 and E. diamanti Ivanov & Lipshitz, 2006
by possessing additional spines between the rostellum
and the bothria. It differs from E. musteli by having an
H-shaped ovary and lateral hooklets arranged in two
lateral groups, and the number of spines per row on the
cephalic peduncle (18–21) readily differentiates it
from E. notoguidoi (24–26) and E. diamanti (95–118).
With these two new species, Echinobothrium van
Beneden, 1849 now includes 45 valid species.

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Letzte Änderung des Eintrages: 20.02.2013

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