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A New Species And A Review Of The Deep-Sea Fish Genus Porogadus (Ophidiidae) From The Western North-Atlantic, Hj Carter, Kj Sulak
A New Species And A Review Of The Deep-Sea Fish Genus Porogadus (Ophidiidae) From The Western North-Atlantic, Hj Carter, Kj Sulak
VIMS Articles
A new species of deep-sea ophidiid, Porogadus situs, is described from deep water off the Bahamas, It differs from its congeners chiefly in having a relatively shorter and deeper head, absence of preopercular and frontal spines and relatively large scales covering the body. A partial osteological description of P. situs is given. porogadus is reviewed and a provisional key to species from the western North Atlantic is presented. The species group containing Porogadus that lack well developed head spines and armature is partially revised on the basis of a study of specimens collected from the Atlantic and Pacific oceans. Of …
Observations On Structure And Evaluation Of Possible Functions Of The Vexillum In Larval Carapidae (Ophidiiformes), Jj Govoni, Je Olney, Df Markle, Wr Curtsinger
Observations On Structure And Evaluation Of Possible Functions Of The Vexillum In Larval Carapidae (Ophidiiformes), Jj Govoni, Je Olney, Df Markle, Wr Curtsinger
VIMS Articles
Elongate dorsal appendages adorn pelagic larvae of many fishes from disparate taxa, among them larvae of the family Carapidae, wherein the singular, elongate appendage is termed a vexillum, The vexillum is a complex larval specialization of the dorsal fin and is characteristic of all carapid genera, It is motile, well vascularized, and innervated by a branch of a cranial nerve with no apparent spinal innervation. Histological studies of Echiodon dawsoni and Carapus bermudensis vexilla show a two layered epidermis with mucous cells, an arteriole and venuole, two myelinated peripheral nerve fascicles, and two collagenous central shafts. No taste buds, free …
Species Associations And Community Composition Of Middle Atlantic Bight Continental-Shelf Demersal Fishes, James A. Colvocoresses, John Musick
Species Associations And Community Composition Of Middle Atlantic Bight Continental-Shelf Demersal Fishes, James A. Colvocoresses, John Musick
VIMS Articles
No abstract provided.
Community And Trophic Organization Of Nekton Utilizing Shallow Marsh Habitats, York River, Virginia, Stephen M. Smith, James G. Hoff, Steven P. O'Neil, Michael P. Weinstein
Community And Trophic Organization Of Nekton Utilizing Shallow Marsh Habitats, York River, Virginia, Stephen M. Smith, James G. Hoff, Steven P. O'Neil, Michael P. Weinstein
VIMS Articles
No abstract provided.
Epizootiology Of Diseases Of Oysters (Crassostrea Virginica), And Parasites Of Associated Organisms In Eastern North America, J. D. Andrews
Epizootiology Of Diseases Of Oysters (Crassostrea Virginica), And Parasites Of Associated Organisms In Eastern North America, J. D. Andrews
VIMS Articles
Haplosporidan parasites of oysters have been reported from four continents. Those of the genera Minchinia, Haplosporidium, and Marteilia, which cause serious diseases of oysters, have been intensively studied. Epizootiology of these highly pathogenic species is well known. Life cycles are obscure for all haplosporidans because artificial infections have not been achieved. The high pathogenicity of newly-discovered haplosporidan diseases to native oysters in eastern North America and western Europe may rod:care that these are exohc pathogens paras~t:zmg suscephble oysters not previously exposed to these disease agents. Epizootiology of two haplosporidan pathogens along the middle Atlantic Coast of North America during 25 …