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Morphology of the pectoral girdle in Pomatoschistus lozanoi De Buen, 1923 (Gobiidae), in relation to pectoral fin adduction
Adriaens, D.; Decleyre, D.; Verraes, W. (1993). Morphology of the pectoral girdle in Pomatoschistus lozanoi De Buen, 1923 (Gobiidae), in relation to pectoral fin adduction. Belg. J. Zool. 123(2): 135-157
In: Belgian Journal of Zoology. Koninklijke Belgische Vereniging voor Dierkunde = Société royale zoologique de Belgique: Gent. ISSN 0777-6276; e-ISSN 2295-0451, meer
Peer reviewed article  
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Trefwoorden
    Animal appendages > Locomotory appendages > Fins
    Biology > Organism morphology > Animal morphology
    Pomatoschistus lozanoi (de Buen, 1923) [WoRMS]
    Marien/Kust
Auteurs  Top 
  • Adriaens, D., meer
  • Decleyre, D., meer
  • Verraes, W.
Abstract
    Like most gobies, Pomatoschistus lozanoi is a benthic fish species. During locomotion the pectoral fin adduction is of great importance in generating a forward propulsion. Several specimens of Pomatoschistus lozanoi were dissected, cleared with staining and sectioned with staining, in order to examine the morphology of the pectoral girdle-apparatus. In this paper a detailed description is given of the skeletal elements, the musculature and the ligaments of the pectoral girdle-apparatus. The pectoral fins of gobies seem better adapted to powerful adduction than a generalised teleost. The proximal radials form a large rigid shoulder plate with a long distal margin on which a high pectoral fin articulates. The fin muscles are strongly developed and assure, together with the large pectoral fin, powerful- drag based- pectoral propulsion. The morphological adaptations for powerful adduction, however, are at cost of the maneuvering abilities of the pectoral fins.
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