Description and osteology of a new eel of the genus Bathymyrus from off Mozambique
- Castle, P H J (Peter Henry John), Rhodes University. Department of Ichthyology
- Authors: Castle, P H J (Peter Henry John) , Rhodes University. Department of Ichthyology
- Date: 1968-05
- Subjects: Eels , Bathymyrus smithi , Marine fishes -- Mozambique
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/69552 , vital:29548 , Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB)) Periodicals Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB))
- Description: Online version of original print edition of the Special Publication of the Rhodes University, Department of Ichthyology, No. 4 , A commercial haul off the Limpopo River mouth in 260 - 270 fathoms collected 35 eels of the genus Bathymyrus Alcock, 1889, described here as B. smithi sp. nov. This has a shorter head and pectoral and a more posterior dorsal origin relative to the pectoral fin than in B.echinorhynchus Alcock, 1889 from the Bay of Bengal and B.simus Smith, 1965 from the South China Sea. B.smithi is also distinct in having extra-oral rostral teeth present but less conspicuously developed, more numerous vertebrae (150 — 155, compared with about 125 — 130 in the other species) and drab coloration. An osteological study shows that, although it has certain unique features, B.smithi is very closely similar to congrids of the subfamily Anagoinae. There are valid reasons for using the term Bathymyrinae for this group of congrid eels.
- Full Text:
- Authors: Castle, P H J (Peter Henry John) , Rhodes University. Department of Ichthyology
- Date: 1968-05
- Subjects: Eels , Bathymyrus smithi , Marine fishes -- Mozambique
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/69552 , vital:29548 , Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB)) Periodicals Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB))
- Description: Online version of original print edition of the Special Publication of the Rhodes University, Department of Ichthyology, No. 4 , A commercial haul off the Limpopo River mouth in 260 - 270 fathoms collected 35 eels of the genus Bathymyrus Alcock, 1889, described here as B. smithi sp. nov. This has a shorter head and pectoral and a more posterior dorsal origin relative to the pectoral fin than in B.echinorhynchus Alcock, 1889 from the Bay of Bengal and B.simus Smith, 1965 from the South China Sea. B.smithi is also distinct in having extra-oral rostral teeth present but less conspicuously developed, more numerous vertebrae (150 — 155, compared with about 125 — 130 in the other species) and drab coloration. An osteological study shows that, although it has certain unique features, B.smithi is very closely similar to congrids of the subfamily Anagoinae. There are valid reasons for using the term Bathymyrinae for this group of congrid eels.
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A contribution to a revision of the moringuid eels
- Castle, P H J (Peter Henry John), Rhodes University. Department of Ichthyology
- Authors: Castle, P H J (Peter Henry John) , Rhodes University. Department of Ichthyology
- Date: 1968-03
- Subjects: Eels , Moringua , Marine fishes -- Africa, Southern
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/69541 , vital:29547 , Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB)) Periodicals Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB))
- Description: Online version of original print edition of the Special Publication of the Rhodes University, Department of Ichthyology, No. 3 , An examination of vertebral numbers in a series of eels of the genus Moringua Gray, 1831 from the western Indian Ocean clearly indicates three species, with about 105—113, 115—125 and 153—160 vertebrae respectively. These counts are matched by proportionately shorter head and greater slenderness of body, which are not correlated with total length in each group. Lateral line pore counts and position of heart confirm the presence of three species. A study of the moringuid literature and of certain type material shows that the names Moringua microchir Bleeker, M.ferruginea Bliss and M.javanica (Kaup) may be applied to these. Aphthalmichthys abbreviatus Bleeker is almost certainly based on immature females of M.microchir and is considered a synonym. A vertebral count on the holotype of M.bicolor Kaup suggests that it may be the male form of M.javanica. Aphthal— michthys macrocephalus Bleeker is probably a synonym of M.macrochir Bleeker and the latter shows close similarities to M.raitaborua Hamilton—Buchanan. Growth in moringuids appears to be most rapid at a point a few segments in advance of the vent.
- Full Text:
- Authors: Castle, P H J (Peter Henry John) , Rhodes University. Department of Ichthyology
- Date: 1968-03
- Subjects: Eels , Moringua , Marine fishes -- Africa, Southern
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/69541 , vital:29547 , Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB)) Periodicals Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB))
- Description: Online version of original print edition of the Special Publication of the Rhodes University, Department of Ichthyology, No. 3 , An examination of vertebral numbers in a series of eels of the genus Moringua Gray, 1831 from the western Indian Ocean clearly indicates three species, with about 105—113, 115—125 and 153—160 vertebrae respectively. These counts are matched by proportionately shorter head and greater slenderness of body, which are not correlated with total length in each group. Lateral line pore counts and position of heart confirm the presence of three species. A study of the moringuid literature and of certain type material shows that the names Moringua microchir Bleeker, M.ferruginea Bliss and M.javanica (Kaup) may be applied to these. Aphthalmichthys abbreviatus Bleeker is almost certainly based on immature females of M.microchir and is considered a synonym. A vertebral count on the holotype of M.bicolor Kaup suggests that it may be the male form of M.javanica. Aphthal— michthys macrocephalus Bleeker is probably a synonym of M.macrochir Bleeker and the latter shows close similarities to M.raitaborua Hamilton—Buchanan. Growth in moringuids appears to be most rapid at a point a few segments in advance of the vent.
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The Congrid eels of the Western Indian Ocean and the Red Sea
- Castle, P H J (Peter Henry John)
- Authors: Castle, P H J (Peter Henry John)
- Date: 1968
- Subjects: Conger eels -- Indian Ocean , Conger eels -- Red Sea , Conger eels
- Language: English
- Type: Text
- Identifier: vital:15005 , http://hdl.handle.net/10962/d1019723 , Ichthyological Bulletin; No. 33
- Description: The eel family Congridae is now known to be represented in the western Indian Ocean (here regarded to be west of 60 E. from and including the Red Sea, to Cape Point) by 11 genera and 19 species as well as at least five distinct larval forms which have not yet been identified. More than half of these species inhabit the shallow and offshore waters of the tropical western Indian Ocean. The remainder are known only from cool-temperate waters off the Cape, with one deep-water Atlantic species and one Mediterranean species also present in this area. Considerable additions to this fauna can be expected as the deep waters off the east coast are more fully sampled. Congrina wallacei sp. nov., de- scribed here from 260-270 fathoms off southern Mozambique and Durban, has rather large teeth on the jaws, a long snout and about 168 vertebrae. At least one species spawns off the Cape, but the majority probably do so over the western edge of the oceanic basins north and south of Madagascar. The shallow-water species show strong affinities with the tropical and cool-temperate Indo-Pacific. , Rhodes University Libraries (Digitisation)
- Full Text:
- Authors: Castle, P H J (Peter Henry John)
- Date: 1968
- Subjects: Conger eels -- Indian Ocean , Conger eels -- Red Sea , Conger eels
- Language: English
- Type: Text
- Identifier: vital:15005 , http://hdl.handle.net/10962/d1019723 , Ichthyological Bulletin; No. 33
- Description: The eel family Congridae is now known to be represented in the western Indian Ocean (here regarded to be west of 60 E. from and including the Red Sea, to Cape Point) by 11 genera and 19 species as well as at least five distinct larval forms which have not yet been identified. More than half of these species inhabit the shallow and offshore waters of the tropical western Indian Ocean. The remainder are known only from cool-temperate waters off the Cape, with one deep-water Atlantic species and one Mediterranean species also present in this area. Considerable additions to this fauna can be expected as the deep waters off the east coast are more fully sampled. Congrina wallacei sp. nov., de- scribed here from 260-270 fathoms off southern Mozambique and Durban, has rather large teeth on the jaws, a long snout and about 168 vertebrae. At least one species spawns off the Cape, but the majority probably do so over the western edge of the oceanic basins north and south of Madagascar. The shallow-water species show strong affinities with the tropical and cool-temperate Indo-Pacific. , Rhodes University Libraries (Digitisation)
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