Life Sciences Commons^™

Two New Species Of Digenea From The Spot, Leiostomus Xanthurus Lacépède, From The Gulf Of Mexico, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Two new species of Digenea are described from the euryhaline fish, Leiostomus xanthurus, from near Ocean Springs, Mississippi. The first, Apocreadium manteri, is most like A. uroproctoferum Sogandares-Bernal, 1959, from which it differs by having multispined scales and larger eggs and not possessing a uroproct. The second, Lecithaster leiostomi, is most like L. gibbosus (Rudolphi, 1802) from which it differs primarily by having a more elongated seminal vesicle and stockier vitelline lobes. Lecithaster musteli Srivastava, 1966, is considered a synonym of L. confusus Odhner, 1905.

Studies On The Helminth Fauna Of Alaska. Xlix. The Occurrence Of Diphyllobothrium Latum (Linnaeus, 1758) (Cestoda: Diphyllobothriidae) In Alaska, With Notes On Other Species, Robert L. Rausch, D. K. Hilliard

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Cestodes representing six species of the genus Diphyllobothrium Cobbold, 1858, were collected from naturally infected terrestrial mammals in Alaska during the period 1949-1970. Additional specimens were reared in experimentally infected animals. Of the species identified, viz., D. latum (Linnaeus, 1758), D. dendriticum (Nitzsch, 1824), D. lanceolatum (Krabbe, 1865), D. ursi Rausch, 1954, D. dalliae Rausch, 1956, and D. alascense Rausch and Williamson, 1958, all but D. alascense were obtained from man after treatment with quinacrine. D. latum occurred most commonly in humans; D. ursi is reported for the first time from this host, and D. lanceolatum in humans was represented …

Increase In Size Of Eimeria Separata Oocysts During Patency, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Examinations of 18 consecutive fecal samples collected at 6-hr intervals from infected rats showed that oocysts increased in length and width by approximately 40% from the beginning to the end of the patent period. Unsporulated oocysts were first observed in the 3rd fecal collection, 84 to 90 hr post-inoculation (PI) and 100 of these measured 9.9 to 14.3 by 8.8 to 12.1 μ (mean 11.7 by 10.1). Patency ended with the 15th fecal collection, 156 to 162 hr PI, and 100 unsporulated oocysts from this sample measured 14.3 to 17.6 by 13.2 to 15.4 μ (mean 16.3 by 14.2). Despite …

Lasiotocus Trachinoti Sp. N. (Digenea: Monorchiidae) From The Pompano, Trachinotus Carolinus (Linnaeus), Along The Coast Of Florida, Robin M. Overstreet, Charles E. Brown

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

The monorchiid trematode Lasiotocus trachinoti sp. n. is described from the intestine and the pyloric ceca of young Trachinotus carolinus. It is most like L. mulliof Bartoli and Prévot, 1966, but differs from it primarily by being smaller and having cirrus spines more evenly dispersed.

A Syncoeliid (Hemiuroidea Faust, 1929) Metacercaria On A Copepod From The Atlantic Equatorial Current, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

The complete life cycle for a species of Syncoeliidae Odhner, 1927, is unknown. Adults are known from the branchial cavity and mouth of marine fishes which are usually found offshore, and second intermediate hosts have been reported. Sars (1885, Challenger Rept. Zool. 13: 228 p.) described the metacercaria of Syncoelium filiferum from the perivisceral cavity of the euphausiids Nematoscelis megalops Sars, 1883, and Thysanoessa gregaria Sars, 1883, in the South Atlantic. DoIlfus (1966, Bull. Mus. Natl. Hist. Nat. Ser. 2 38: 195-200) described Metacercaria (Gen. ?) theomonodi from some poorly preserved material amidst a collection of "copepods and chaetognaths" collected …

Bibliography Of Diseases And Parasites Of Marine Fish And Shellfish (With Emphasis On Commercially Important Species), Carl J. Sindermann

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

The literature on diseases and parasites of marine animals has been accumulating at an accelerating rate in recent decades, and at a seemingly geometrical rate in the past few years. Reviews of selected aspects of the subject have appeared (Cheng, 1967; Sindermann, 1966; Sindermann and Rosenfield, 1967). References listed in these papers include a significant, but still a small part, of the available literature. With the proliferation of journals in many languages throughout the world, a complete bibliography, even in a narrow area of research, is almost an impossibility. Then too, the daily appearance of new published information represents an …

Studies On The Helminth Fauna Of Alaska. Xlv. Schistotaenia Srivastavai N. Sp. (Cestoda: Amabiliidae) From The Red-Necked Grebe, Podiceps Grisegena (Boddaert), Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

The genus Schistotaenia Cohn, 1900, at present includes six species, all parasites of grebes (Podicipediformes). Among helminths found in a red-necked grebe, Podiceps grisegena (Boddaert), on October 18, 1966, at Anchorage, Alaska, were cestodes representing two species of Schistotaenia, of which one is described here as new. The host was an adult bird which evidently had been injured during migration.

This cestode is named in honor of Dr. H. D. Srivastava, in recognition of his significant contributions to helminthological research.

Spinitectus Beaveri Sp. N. (Nematoda: Spiruroidea) From The Bonefish, Albula Vulpes (Linnaeus), In Florida, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Spinitectus beaveri sp. n. from the stomach of Albula vulpes is described. In the male, the maximum length is 6 mm, the esophagus is approximately 30% of the body length, the spicule ratio is 1:2.5 to 3.0, and there are 4 pre- and 5 postcloacal papillae. In the female, the maximum length is 7 mm, the esophagus is approximately 27% of the body length, and approximately 38% of the body length is posterior to the vulva. The species most closely resembles S. carolini Holl, 1928, from which it differs by having 10 to 16 rather than 25 to 35 cuticular …

System Analysis And Nematode Phylogeny, Armand R. Maggenti

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

The purpose here is to suggest a method which will permit understanding of the phylogenetic relationships of contemporary representatives of the phylum Nematoda without fossils. It is not my intent to again offer a phylogeny for the Nematoda. To say that no real benefit or knowledge of phylogeny or evolution is possible without fossils is succumbing to apathy. One cannot deny or ignore that all systems, morphological, biological and chemical manifested in modern forms developed by evolutionary sequence. It is true that with a complete fossil record the rates of evolution and developmental pressures could be accurately evaluated. However, in …

The Terminology And Occurrence Of Certain Structures Of Digenetic Trematodes, With Special Reference To The Hemiuroidea, Harold W. Manter

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

A number of terms applied to structures of digenetic trematodes are defined. The hermaphroditic sac of haploporids is distinguished from the sinus sac of hemiurids. The term sinus organ is applied to a cirrus-like organ in the sinus sac of several genera of Dinurinae.

Glomericirrus septemlobus Teixeira de Freitas and Kohn, 1965 is a synonym of Lecithochirium microstomum Chandler, 1935.

Erilepturus africanus Fischthal and Kuntz, 1963 is a synonym of Dinurus gizae Fischthal and Kuntz, 1963.