Open AccessOn the composition and variations of the pelvic plexus in Acanthias vulguris
Author(s) -
R. C. Punnett
Publication year - 1902
Publication title -
proceedings of the royal society of london
Language(s) - English
Resource type - Journals
eISSN - 2053-9126
pISSN - 0370-1662
DOI - 10.1098/rspl.1901.0082
Subject(s) - plexus , squalus acanthias , position (finance) , variation (astronomy) , anatomy , composition (language) , medicine , literature , physics , art , business , finance , astrophysics
Whilst recently engaged upon the development of the pelvic plexus inMustelus Iœvis I was much struck with the amount of variation in the number and position of the nerves forming it. This led me at the time to examine all the material which I was able to procure, and the results obtained have been given in a previous paper (12, 1900). Believing, however, that, in Bateson’s words, “the facts of variation must be the test of phylogenetic possibility” (4, p. 30), I determined to examine a still larger number of specimens of some other species of shark.