The Occurrence of the smooth sand-eel, Gymnammodytes Semisquamatus (Jourdain), in the Plymouth area, with notes on G. cicerelus (Rafinesque), and G. capensis (Barnard)
Gymnammodytes semisquatnatus , the North Atlantic smooth sand-eel, has a continuous distribution from southern Norway to the southern Atlantic coast-line of Spain. Its occurrence in the Irish Sea and in the Plymouth area are new records. In the latter area it is an off-shore species, apparently conc...
| Published in: | Journal of the Marine Biological Association of the United Kingdom |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
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Cambridge University Press (CUP)
1950
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| Online Access: | http://dx.doi.org/10.1017/s0025315400056216 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315400056216 |
| Summary: | Gymnammodytes semisquatnatus , the North Atlantic smooth sand-eel, has a continuous distribution from southern Norway to the southern Atlantic coast-line of Spain. Its occurrence in the Irish Sea and in the Plymouth area are new records. In the latter area it is an off-shore species, apparently concentrating in shell gravel in winter for spawning. It has a mean vertebral number of slightly over 68 (Plymouth and Scottish specimens). A small sample of the Mediterranean species, G. cicerelus , gives a mean of just over 66, while the South African species, G. capensis , which is indistinguishable from G. semisquamatus by external non-metameric characters, has a much lower mean of 58·5. |
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