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Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. X. The Question Of Being Male, Kim Larsen
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. X. The Question Of Being Male, Kim Larsen
Gulf and Caribbean Research
Three new species Parafilitanais mexicana, Collettea elongata, and Paragathotanais medius are described from deep-sea localities in the Gulf of Mexico. The male of Parafilitanais does not vary conspicuously from the female, except for possessing pleopods. Male Paragathotanais reveal that the mouthparts display some degree of sexual dimorphism. Males of all 3 species possess functional mouthparts. The problems identifying male Tanaidacea are discussed. The number of terminal spiniform setae on the maxillule is considered invalid as a diagnostic character. Keys to the species of Parafilitanais and Paragathotanais are given.
Tanapseudes Gutui, A New Species Of Apseudomorphan Tanaidacea (Crustacea: Peracarida) From The Caribbean Sea And The Taxonomic Status Of The Family Tanapseudidae Băcescu, Thomas Hansknecht, Richard W. Heard, Roger Bamber
Tanapseudes Gutui, A New Species Of Apseudomorphan Tanaidacea (Crustacea: Peracarida) From The Caribbean Sea And The Taxonomic Status Of The Family Tanapseudidae Băcescu, Thomas Hansknecht, Richard W. Heard, Roger Bamber
Gulf and Caribbean Research
Tanapseudes gutui, n. sp., is described from depths of 3–34 m off San Juan, Puerto Rico, and 4– 5 m off Goat Island, Tobago. Tanapseudes sinensis Bamber from Hong Kong waters is re-examined and determined to represent a junior synonym of the type species T. ormuzana Băcescu which was originally collected in the Straights of Hormuz off Iran. Tanapseudes gutui can be distinguished from T. ormuzana by several characters including details of the mouth parts, the presence of a reduced spiniform seta on the distotergal margin of the propodus of pereopod 1, pereonites 3–6 with rounded anterior margins, and …
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Ix. Geographical Occurrence Of Apseudes Olimpiae Gutu, 1986 With A Review Of Previous Records For The Genus Apseudes In The Gulf, Tom Hansknecht, Richard W. Heard
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Ix. Geographical Occurrence Of Apseudes Olimpiae Gutu, 1986 With A Review Of Previous Records For The Genus Apseudes In The Gulf, Tom Hansknecht, Richard W. Heard
Gulf and Caribbean Research
Examination of tanaidacean specimens collected from shelf waters of the eastern Gulf of Mexico (Gulf) revealed the presence of the apseudomorph Apseudes olimpiaeGutu, 1986, whose type locality was unknown, but suspected to be Bermuda. It is now determined that the type material actually came from the northeastern Gulf. Although the specific station locality information for the type material has been lost; records indicate that specimens from the Gulf were sent to Romania for study by M. Băcescu and apparently became mixed with material from Bermuda. Based on additional material from the present study, new locality records are established for …
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Vii. Atlantapseudes Lindae, N. Sp. (Apseudidae) From The Continental Slope Of The Northern Gulf Of Mexico, Gabriele H. Meyer, Richard W. Heard
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Vii. Atlantapseudes Lindae, N. Sp. (Apseudidae) From The Continental Slope Of The Northern Gulf Of Mexico, Gabriele H. Meyer, Richard W. Heard
Gulf and Caribbean Research
During 1983 through 1985, 53 specimens of Atlantapseudes lindae, new species, were collected in box core samples taken on the continental slope in the northern Gulf of Mexico. Atlantapseudes lindae can be distinguished from the only other member of the genus, A. nigrichela Băcescu, 1978 by several characters, including the length of the squama of antenna 2, which is no longer than the third peduncular segment, and the absence of anterolateral spines on pereonites 1-2 of females and 1-6 on males. The diagnosis for genus Atlantapseudes Băcescu, 1978 is amended to include the presence of sexually dimorphic chelae and …
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Vi. On The Genus Mesotanais Dollfus, 1897 With Descriptions Of Two New Species, M. Longisetosus And M. Vadicola, Jurgen Sieg, Richard W. Heard
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Vi. On The Genus Mesotanais Dollfus, 1897 With Descriptions Of Two New Species, M. Longisetosus And M. Vadicola, Jurgen Sieg, Richard W. Heard
Gulf and Caribbean Research
Two new species of tanaidaceans belonging to the family Leptocheliidae were collected from the continental shelves and slopes of the eastem and Gulf coasts of the United States. Both of these species are assigned to the poorly known genus Mesotanais Dollfus, 1897. Mesotanais is unique within the Leptocheliidae because its members lack eyes. The second supposedly important generic character, uniramous uropods, reported in the original description is considered to be a misdiagnosis. The assumption of this error is supported by the rediscovery of the type-species, Mesotanais dubius Dollfus, 1897 (Sieg and Bird, in press). In the present study, the genus …
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Viii., Barbara J. Viskup, Richard W. Heard
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Viii., Barbara J. Viskup, Richard W. Heard
Gulf and Caribbean Research
Pseudosphyrapus siegi, n. sp. is described from benthic samples collected in deep water (595-2400 m) from the northern Gulf of Mexico. Of the five currently recognized species of Pseudosphyrapus Cup, 1980, P. siegi is most closely related to P. dispar (Lang, 1968), a southwestem Pacific cognate and only other member of the genus having a squama on antenna 2. Pseudosphyrapus siegi is distinguished from P. dispar by: (1) a more triangular, but less acute, rostrum (2) the presence of two 4-pronged spines on the second maxilla (homologous spines on P. dispar are 3-pronged), and (3) the absence of a …
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Iv. On Nototanoides Trifurcatus Gen. Nov., Sp. Nov., With A Key To The Genera Of The Nototanaidae, Jurgen Sieg, Richard W. Heard
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Iv. On Nototanoides Trifurcatus Gen. Nov., Sp. Nov., With A Key To The Genera Of The Nototanaidae, Jurgen Sieg, Richard W. Heard
Gulf and Caribbean Research
Nototanoides trifurcatus gen. nov., sp. nov. is described and illustrated from the Gulf of Mexico. Nototanoides differs from the other genera of the family by the male possessing a vestigial maxilliped. It most closely resembles the genera Nototanais and Androtanais. In addition to the differences of the maxillipeds the males of Nototanoides can be separated by the 4-segmented antenna 1 and the females are distinguished by the trifurcate spine on the second segment of the palp of the maxilliped. A key to known genera of the family Nototanaidae is presented.
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Iii. On The Occurrence Of Teleotanais Gerlachi Lang, 1956 (Nototanaidae) In The Eastern Gulf, Jurgen Sieg, Richard W. Heard
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Iii. On The Occurrence Of Teleotanais Gerlachi Lang, 1956 (Nototanaidae) In The Eastern Gulf, Jurgen Sieg, Richard W. Heard
Gulf and Caribbean Research
Teleotanais gerlachi Lang, 1956, a euryhaline member of the family Nototanaidae, known from Brazil and El Salvador, is reported from the eastern Gulf of Mexico (west coast of Florida) and the west coast of Africa (Nigeria). The species is diagnosed and illustrated. Differences between Teleotanais and the superficially similar genus Paratanais (Pantanaidae) are briefly compared and discussed.
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. I. Introduction And An Annotated Bibliography Of Tanaidacea Previously Reported From The Gulf Of Mexico, John T. Ogle, Richard W. Heard, Jurgen Sieg
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. I. Introduction And An Annotated Bibliography Of Tanaidacea Previously Reported From The Gulf Of Mexico, John T. Ogle, Richard W. Heard, Jurgen Sieg
Gulf and Caribbean Research
A brief summary of the biology and a historical review are presented for the Tanaidacea. An annotated bibliography is provided for published reports and records of Tanaidacea from the Gulf of Mexico.
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Ii. The Occurrence Of Halmyrapseudes Bahamensis Băcescu And Gutu, 1974 (Apseudidae) In The Eastern Gulf With Redescription And Ecological Notes, Jurgen Sieg, Richard W. Heard, John T. Ogle
Tanaidacea (Crustacea: Peracardia) Of The Gulf Of Mexico. Ii. The Occurrence Of Halmyrapseudes Bahamensis Băcescu And Gutu, 1974 (Apseudidae) In The Eastern Gulf With Redescription And Ecological Notes, Jurgen Sieg, Richard W. Heard, John T. Ogle
Gulf and Caribbean Research
Halmyrapseudes bahamensis Băcescu and Gutu, 1974 is reported from two localities in the northeastern Gulf of Mexico. A redescription is presented based on examination of type material and a large collection of Gulf specimens. Ecological notes are presented on the occurrence, seasonality and distribution of H. bahamensis in two tidal marsh systems near St. Marks, Florida. The taxonomic status of H. bahamensis in relation to the two other described species of Halmyrapseudes is discussed.