Comparative Parasitology 67(1) 2000 - Peru State College

Cement gland usually small with few giant nuclei.
Taxonomic summary
TYPE SPECIES: Pallisentis (B.) allahabadi
Agarwal, 1958.
OTHER SPECIES: Pallisentis (B.) cavasii Gupta
and Verma, 1980; Pallisentis (B.) croftoni Mital
and Lai, 1981; Pallisentis (B.)fasciata Gupta
and Verma, 1980; Pallisentis (B.) guntei Sahay,
Nath, Sinha, 1967; Pallisentis (B.) indica Mital
and Lai, 1981; Pallisentis (B.) tnehrai Gupta and
Fatma, 1986; Pallisentis (B.) vietnamensis sp. n.
(this report).
Remarks
Pallisentis allahabadi and P. guntei were synonymized
with P. ophiocephala and P. colisai,
respectively, by Soota and Bhattacharya (1982).
These synonymies did not acknowledge speciesspecific
differences outlined in our key. The redescription
of P. allahabadi by Jain and Gupta
(1979) and their synonymization of P. buckleyi
Tadros, 1966, with it are considered sound and
are accepted; the key taxonomic characters are
in agreement.
Pallisentis subgen. n. Van Cleave, 1928,
sensu stricto
DIAGNOSIS: With the characters of the genus
Pallisentis provided herein. Proboscis hooks
gradually declining in size posteriorly; cement
glands usually long with many giant nuclei.
Taxonomic summary
TYPE SPECIES: Pallisentis (P.) umbellatus
van Cleave, 1928.
OTHER SPECIES: Pallisentis (P.) celatus (Van
Cleave, 1928) Baylis, 1933; Pallisentis (P.) colisai
Sarkar, 1954; Pallisentis (P.) clupei Gupta
and Gupta, 1979; Pallisentis (P.) gaboes
(MacCallum, 1918) Van Cleave, 1928; Pallisentis
(P.) garuei (Sahay, Sinha, and Ghosh, 1971)
Jain and Gupta, 1979; Pallisentis (P.) gomtii
Gupta and Verma, 1980; Pallisentis (P.) guptai
Gupta and Fatma, 1986; Pallisentis (P.) kalriai
Khan and Bilqees, 1985; Pallisentis (P.) magnum
Saeed and Bilqees, 1971; Pallisentis (P.)
nandai Sarkar, 1953; Pallisentis (P.) nagpurensis
(Bhalero, 1931) Baylis, 1931; Pallisentis (P.)
pesteri (Tadros, 1966) Chowhan, Gupta, and
Khera, 1987; Pallisentis (P.) sindensis Khan and
AMIN ET AL.—REVISION OF THE GENUS PALLISENTIS 43
Bilqees, 1987; Pallisentis (P.) singaporensis
Khan and Ip, 1989.
Remarks
Pallisentis celatus was redescribed by Moravec
and Sey (1989) from Vietnamese specimens.
Pallisentis gaboes was provisionally and incompletely
redescribed by Yamaguti (1954) and
briefly referenced by Fernando and Furtado
(1963). Khan and Ip (1988) referred to the proboscis
armature of P. gaboes as similar to that
of P. singaporensis. The synonymization of the
genus Devendrosentis Sahay, Sinha, and Ghosh,
1971, with the genus Pallisentis and the assignment
of D. garuai Sahay, Sinha, and Gosh,
1971, to the genus Pallisentis are accepted; the
descriptions of the new genera are identical.
Since none of their accounts was sufficiently
similar to the original description, the incomplete
redescription of P. nagpurensis by Jain and
Gupta (1979) is considered questionable, that of
Chowhan et al. (1987) uncertain, and that of
Kennedy (1981) not of the same species. Based
on comparability of cement gland structure, we
accept the synonymy of the genus Saccosentis
Tadros, 1966, with Pallisentis as proposed by
Chowhan et al. (1987), and Saccosentis pesteri
Tadros, 1966, is assigned to the genus Pallisentis.
The synonymization of P. magnum, P. nandai,
and P. nagpurensis with P. ophiocephali by
Soota and Bhattacharya (1982) is not accepted,
since these synonymies did not acknowledge the
species-specific differences outlined in our key.
Other Taxonomic Assignments
Pallisentis cholodkowskyi (Kostylew, 1928)
Amin, 1985 ( = Quadrigyrus cholodkowskyi Kostylew,
1928) is assigned to the genus Acanthocephalorhynchoides
Kostylew, 1941, based on
proboscis and trunk spination patterns (see Williams
et al. [1980] for additional information).
Golvan (1994) made a similar assignment regarding
Acanthocephalorhynchoides ussuriensis
Kostylew, 1941.
Pallisentis tetraodontae Troncy, 1978, was
described by Troncy (1978) as a subspecies of
Pallisentis golvani Troncy and Vassiliadis, 1973.
Golvan (1994) elevated it to species rank without
justification. We have determined that P.
golvani does not belong to the genus Pallisentis
or any other known genus of the family Quadrigyridae
Van Cleave, 1920 (see remarks). A
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