Growth in larval and metamorphosed Eurypharynx pelecanoides Vaillant, 1882 (Pisces, Anguilliformes, Eurypharyngidae) from the mid North Atlantic
The difference between the larvae of Eurypharynx pelecanoides and Saccopharynx ampullaceus, both belonging to the suborder Saccopharyngoidei (formerly Lyomeri), does not consist only of different numbers in myomeres but also of the structure of the suspensorium of the lower jaw. In E. pelecanoides i...
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ftnaturalis:oai:naturalis:504172 2023-05-15T17:32:47+02:00 Growth in larval and metamorphosed Eurypharynx pelecanoides Vaillant, 1882 (Pisces, Anguilliformes, Eurypharyngidae) from the mid North Atlantic Utrecht, W.L. van 1988 application/pdf http://www.repository.naturalis.nl/record/504172 http://www.repository.naturalis.nl/document/547822 unknown http://www.repository.naturalis.nl/record/504172 http://www.repository.naturalis.nl/document/547822 (c) Naturalis Bijdragen tot de Dierkunde (0067-8546) vol.58 (1988) nr.1 p.12 Article / Letter to the editor 1988 ftnaturalis 2022-09-01T06:22:14Z The difference between the larvae of Eurypharynx pelecanoides and Saccopharynx ampullaceus, both belonging to the suborder Saccopharyngoidei (formerly Lyomeri), does not consist only of different numbers in myomeres but also of the structure of the suspensorium of the lower jaw. In E. pelecanoides it consists of two separate bones, the hyomandibulare and the quadratum. According to Orton (1963) in S. ampullaceus the suspensorium consists of only one piece of bone. In the larvae of E. pelecanoides there is no upper jaw or related structure present, up to a length of about 20 mm. In the larvae as well as in the metamorphosed specimens of E. pelecanoides, growth in length of the bony components of the skull, forming the upper and lower jaw and its suspensorium, is strong and significant in caudal direction. There is also a small but significant increase in length of the part of the skull between the eyes and the tip of the snout. Article in Journal/Newspaper North Atlantic Naturalis Digital Academic Repository (National Museum of Natural History in the Netherlands) |
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Open Polar |
collection |
Naturalis Digital Academic Repository (National Museum of Natural History in the Netherlands) |
op_collection_id |
ftnaturalis |
language |
unknown |
description |
The difference between the larvae of Eurypharynx pelecanoides and Saccopharynx ampullaceus, both belonging to the suborder Saccopharyngoidei (formerly Lyomeri), does not consist only of different numbers in myomeres but also of the structure of the suspensorium of the lower jaw. In E. pelecanoides it consists of two separate bones, the hyomandibulare and the quadratum. According to Orton (1963) in S. ampullaceus the suspensorium consists of only one piece of bone. In the larvae of E. pelecanoides there is no upper jaw or related structure present, up to a length of about 20 mm. In the larvae as well as in the metamorphosed specimens of E. pelecanoides, growth in length of the bony components of the skull, forming the upper and lower jaw and its suspensorium, is strong and significant in caudal direction. There is also a small but significant increase in length of the part of the skull between the eyes and the tip of the snout. |
format |
Article in Journal/Newspaper |
author |
Utrecht, W.L. van |
spellingShingle |
Utrecht, W.L. van Growth in larval and metamorphosed Eurypharynx pelecanoides Vaillant, 1882 (Pisces, Anguilliformes, Eurypharyngidae) from the mid North Atlantic |
author_facet |
Utrecht, W.L. van |
author_sort |
Utrecht, W.L. van |
title |
Growth in larval and metamorphosed Eurypharynx pelecanoides Vaillant, 1882 (Pisces, Anguilliformes, Eurypharyngidae) from the mid North Atlantic |
title_short |
Growth in larval and metamorphosed Eurypharynx pelecanoides Vaillant, 1882 (Pisces, Anguilliformes, Eurypharyngidae) from the mid North Atlantic |
title_full |
Growth in larval and metamorphosed Eurypharynx pelecanoides Vaillant, 1882 (Pisces, Anguilliformes, Eurypharyngidae) from the mid North Atlantic |
title_fullStr |
Growth in larval and metamorphosed Eurypharynx pelecanoides Vaillant, 1882 (Pisces, Anguilliformes, Eurypharyngidae) from the mid North Atlantic |
title_full_unstemmed |
Growth in larval and metamorphosed Eurypharynx pelecanoides Vaillant, 1882 (Pisces, Anguilliformes, Eurypharyngidae) from the mid North Atlantic |
title_sort |
growth in larval and metamorphosed eurypharynx pelecanoides vaillant, 1882 (pisces, anguilliformes, eurypharyngidae) from the mid north atlantic |
publishDate |
1988 |
url |
http://www.repository.naturalis.nl/record/504172 http://www.repository.naturalis.nl/document/547822 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Bijdragen tot de Dierkunde (0067-8546) vol.58 (1988) nr.1 p.12 |
op_relation |
http://www.repository.naturalis.nl/record/504172 http://www.repository.naturalis.nl/document/547822 |
op_rights |
(c) Naturalis |
_version_ |
1766131055126904832 |