Life Sciences Commons^™

A Checklist Of Parasites Of California, Oregon, And Washington Marine And Estuarine Fishes, Milton S. Love, Mike Moser

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

This report is a summary of the published records of parasites found from the marine and estuarine fishes of California, Oregon, and Washington. Coverage has not been limited to the western United States, but rather includes parasite reports from throughout each fish's range. Included is a host-parasite list and parasite-host cross index.

We have produced this survey because we felt there was a need for a single source which would list all the parasites infecting marine and estuarine fish from California, Oregon, and Washington. Pertinent sources are scattered over a number of journals, covering many years. Workers find it time …

Identification Of Four Complementary Rna Species In Akabane Virus-Infected Cells, Asit K. Pattnaik, G. Abraham

School of Veterinary and Biomedical Sciences: Faculty Publications

The analysis of RNA extracted from purified Akabane virus demonstrated the presence of three size classes of single-stranded RNAs with sedimentation coefficients of 31S (large, L), 26S (medium, M), and 13S (small, S). Molecular weights of these RNA species were estimated to be 2.15 x 10⁶,1.5 X 10⁶, and 0.48 x 10⁶ for the L, M, and S RNAs, respectively. Hybridization analysis involving viral genomic RNA and RNA from virus-infected cells resulted in the identification of four virus-specific cRNA species in infected cells. These cRNAs were found to be nonpolyadenylated by their inability to bind …

Rhizonema Sequoiae N. Gen. N. Sp. From Coast Redwood Sequoia Sempervirens (D. Don) Endl., I. Cid Del Prado Vera, B. F. Lownsbery, Armand R. Maggenti

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

Rhizonema sequoiae n. gen. n. sp. is described from the roots of Coast Redwood, Sequoia sempervirens (D. Don) Endl., growing near Lake Lagunitas, Marin County, California. Rhizonema females are annulated over their entire bodies, are wholly embedded in host tissue, and secrete an abundant amount of gel material. Mature females do not form a cyst. The vulva is located on a large posterior terminal cone, and the anus is on the dorsal vulval lip. Esophageal glands of the second-stage larvae fill more than half of the body cavity. Tails of the vermiform males are blunt, and a cloacal tubus is …

Aspects Of The Biology Of The Red Drum, Sciaenops Ocellatus, In Mississippi, Robin M. Overstreet

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

Several hundred specimens of the red drum from Mississippi were critically assessed. Regression equations for standard-length (SL) versus total-length differed between males and females and between small and large members of the same sex. Asingle regression line represented the weight-SL relationship for males with females. For condition coefficients to be helpful, fish had to be grouped at least by sex, season, and length or stage of maturity. By 12 months of age, most fish were about 30 to 32 cm SL and their distribution ranged throughout Mississippi Sound rather than being restricted to inshore bayou and marsh habitats like younger …

Aspects Of The Biology Of The Spotted Seatrout, Cynoscion Nebulosus, In Mississippi, Robin M. Overstreet

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

About 3,000 specimens of the spotted seatrout from Mississippi Sound and adjacent water grouped by males and females had a nearly identical standard Iength (SL) versus total length (TL) relationship, although the equation for males in winter differed from that for those in other seasons. When investigating the SL-weight relationship, some differences occurred both among seasons and between sexes. Therefore, condition coefficients (K) were calculated to compare male and female groups according to their length and state of maturation on a seasonal basis. The hepatosomatic index (HSI) tended to increase with fish length, with relatively high values occurring in winter …

Organization Of Sporulated Oocysts Of Eimeria Funduli In The Gulf Killifish, Fundulus Grandis, William E. Hawkins, John W. Fournie, Robin M. Overstreet

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

Oocysts of Eimeria funduli were studied by transmission electron microscopy in naturally-infected livers of the Gulf killifish, Fundulus grandis. Tissues were cryo-processed because membranous structures in the oocyst appear to hinder routine fixation and embedment. The oocyst wall (about 25 nm thick) was adjacent to the host cell and consisted of an outer membrane that limited the host cell cytoplasm and an inner membrane separated from the outer membrane by a narrow space. In some specimens, dense material was applied to the inner face of the inner membrane. Individual sporocysts were surrounded by a membranous "veil" (about 25 nm …

Evaluation Of The Status Of Texanocotyle Pogoniae And Laterocotyle Padreinsulae (Trematoda: Aspidogastridae), Sherman S. Hendrix, Robin M. Overstreet

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

Simpson and McGraw (1979, Southwest. Nat. 24: 557-562) erected two genera for two new species of aspidogastrid trematodes infecting the black drum, Pogonias cromis (Linnaeus), along the Texan Gulf of Mexico coast. Examination of holotypes and paratypes of each reveals that the two species have been described previously and that the genera are invalid.

Review Of The Grizzlies Of Mount Mckinley By Adolph Muire, Robert L. Rausch

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

Review of The Grizzlies of Mount McKinley by Adolph Murie. U.S. Department of the Interior, National Park Service, Scientific Monograph Series No. 14. U.S. Government Printing Office, Washington, D.C., 1981. xvi, 251 p., ill.

Coccidia From Kangaroo Rats (Dipodomys Spp.) In The Western United States, Baja California, And Northern Mexico With Descriptions Of Eimeria Merriami Sp. N. And Isospora Sp., Carla A. Stout, Donald W. Duszynski

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

Since January 1975, 104 of 361 (29%) kangaroo rats (Dipodomys spp.) examined for coccidia had oocysts in their feces. These included 32 of 71 (45%) D. agilis from California (3 of 8, 38%) and Baja California Norte (29 of 63, 46%); none of 18 D. deserti from Sonora, Mexico; one of one D. gravipes from Baja Norte; 43 of 124 (35%) D. merriami from California (1 of 4, 25%), New Mexico (16 of 49, 33%), Baja Norte (12 of 23, 52%), Baja Sur (6 of 20, 30%), and Sonora, Mexico (8 of 28, 29%); 17 of 103 (17%) D. …

Centrorhynchus Kuntzi From The Usa With Description Of The Male And Redescription Of C. Spinosus (Acanthocephala: Centrorhynchidae), Brent B. Nickol

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

Centrorhynchus kuntzi Schmidt and Neiland, 1966, reported here for the first time from the USA, occurred in Bubo virginianus in Florida and Buteo jamaicensis, Buteo lineatus, and Buteo platypterus in Louisiana. Centrorhynchus kuntzi males, previously undescribed, were 10 to 29 mm long with a large swelling near the anterior end of the trunk. The proboscis, averaging 1.14 mm in length and with a marked swelling near the middle at the level of proboscis receptacle insertion, was armed with 26 to 31 (usually 29) longitudinal rows of 22 to 26 (usually 24) hooks each. The first seven to nine …

A New Species Of Chronogaster Cobb, 1913 (Nemata : Plectidae) With An Amended Diagnosis Of The Genus And Discussion Of Cuticular Ornamentation, Armand R. Maggenti, Dewey J. Raski, Puthenkandathil K. Koshy, Varghese K. Sosamma

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

Chronoguster spinicorpus n. sp. is described from soil about the roots of coconut palm in Kerala, India. It is distinguished from all other species of Chronogaster by its longitudinal rows of spines. The stability of the genus Chronogaster is discussed with stress on internal anatomy and distribution of cephalic sensillae as generic characteristics. Most external ornamentation is judged to be diagnostic for species only.

Description d’une nouvelle espèce de Chronogaster Cobb, 1913 (Nemata : Plectidae), diagnose énzendée du genre et considérations sur l’ornementation cuticulaire

Description est donnée de Chronogaster spinicorpus n. sp., venant de sol de rhizosphère de cocotier, au …

An Unusually Small Egg-Carrying Callinectes Sapidus In The Northern Gulf Of Mexico, Robin M. Overstreet, Harriett M. Perry, Gerald Adkins

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

This communication reports the smallest verified egg-carrying specimen of Callinectes sapidus. With a carapace 20 mm long by 47 mm wide, the female measures considerably less than most other mature individuals, but about the same as an average-sized individual infected with an adult specimen of the rhizocephalan Loxothylacus texanus.

Occurrence And Pathogenicity Of Heligmosomoides Spp. (Nematoda: Heligmosomidae) Associated With Cecal Villi In Arvicolid Rodents, Robert L. Rausch, M. L. Johnson

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

The host response to the nematodes Heligmosomoides hudsoni (Cameron, 1937) and H. johnsoni Rausch and Rausch, 1973 (Heligmosomidae) was investigated in their natural hosts, varying lemmings, Dicrostonyx spp., and heather voles, Phenucomys intermedius Merriam (Rodentia: Arvicolidae), respectively. The nematodes occupy the cecum of the host, where they coil tightly around the long cecal villi. In individual animaIs, the comparatively few villi occupied became much enlarged, exhibiting severe hyperplasia of the mucosa and other microscopic changes, as described. The mechanism of pathogenesis involved three factors: strangulation of the villi, pressure atrophy, and chronic irritation by the crests of the synlophe. In …

Taxonomy And Life Histories Of Two North American Species Of "Carneophallus" (=Microphallus) (Digenea: Microphallidae), Richard W. Heard, Robin M. Overstreet

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

Discusses the taxonomy and life histories of two North American species of Carneophallus" (=Microphallus) (Digenea: Microphallidae).

Heligmosomoides Thomomyos Sp. N. (Nematoda: Heligmosomidae) From Pocket Gophers, Thomomys Spp. (Rodentia: Geomyidae), In Oregon And California, Scott L. Gardner, Douglas Jasmer

Scott L. Gardner Publications

The nematode Heligmosomoides thomomyos sp. n. is described from the small intestine of Thomomys bulbivorus and T. bottae. This is the first report of Heligmosomoides from rodents of the family Geomyidae.

Nematodes of the genus Heligmosomoides Hall, 1916 occur most commonly in arvicolid rodents. Of the 26 known species of the genus, 11 have been recorded from Nearctic rodents (Rausch and Rausch, 1973). In North America, Heligmosomoides spp. have been recorded not only from voles, but also from cricetids and murids. Heligmosomoides spp. characteristically inhabit the small intestine or cecum of their host, where they usually are found tightly …

Cuticular Ridge Patterns Of Nematodirus (Nematoda: Trichostrongyloidea) Parasitic In Domestic Ruminants Of North America, With A Key To Species, J. R. Lichtenfels, P. A. Pilitt

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

The six species of Nematodirus parasitic in domestic ruminants of North America have been identified previously on the basis of characteristics of the bursa and tips of the spicules, and females could not be identified. In an effort to find additional diagnostic characteristics of both sexes, cuticular ridges were studied with light and scanning electron microscopy and in whole mounts and cross sections. After the cuticular ridges of males were characterized, females were matched with males by means of cuticular ridges, except for the rare species N. davtiani. Five of the six species have variations of an 18-ridge bilaterally …

Gastrointestinal Helminths Of The Cougar, Felis Concolor L., In Northeastern Oregon, Robert L. Rausch, C. Maser, Eric P. Hoberg

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

Helminths of nine species were identified from 39 cougars obtained in northeastern Oregon (Walbowa, Baker, and Union counties), viz., Taenia omissa Lühe, 1910 (100%); T. ovis krabbei Moniez, 1879 (61%); T. hydatigena Pallas, 1776 (10%); Mesocestoides lineatus (Goeze, 1782) (5%); Toxascaris leonina (von Linstow, 1902) (69%); Toxocara cati (Schrank, 1788) (15%); Physaloptera praeputialis von Linstow, 1889 (13%); Pterygodermatites affinis (Jagerskiold, 1904) (ca. 2%); and Trichinella sp. (larvae) (ca. 2%). In addition, undeveloped cestodes of the genus Taenia in 26 animals had lost rostellar hooks and could not be identified. Host-records, prevalence, and biological characteristics of some of the helminths are …

United States Naval Medical Research Unit Number Three, Cairo, Egypt, Medical Zoology Department Translation List, Harry Hoogstraal

United States Naval Medical Research Unit 3: Publications

List of translations of medical parasitology and medical entomology papers prepared by the United States Naval Medical Research Unit Number 3 in Cairo, Egypt. The papers were translated from numerous languages, such as Russian (most were translated from Russian), Bulgarian, Chinese, Czech, Finnish, French, German, and Japanese, into English. The publication dates of the original papers ranged from about 1915 to 1983. Harry Hoogstraal translated some or all of the papers.