Dall'interno del libro
Risultati 1-3 di 37
Pagina 82
... 12.7 ; pectoral on left 30 , 9-11 , 9.9 and on right 30 , 9-11 , 9.7 ; pelvic 30 , all
with 6 rays on both sides . Sexual Dimorphism . As in the case of L. oculatus ,
sexual dimorphism is apparent this species also , i.e. females attain a larger size
and ...
... 12.7 ; pectoral on left 30 , 9-11 , 9.9 and on right 30 , 9-11 , 9.7 ; pelvic 30 , all
with 6 rays on both sides . Sexual Dimorphism . As in the case of L. oculatus ,
sexual dimorphism is apparent this species also , i.e. females attain a larger size
and ...
Pagina 474
One extreme view pictures them as going unerringly from their river to a
predetermined feeding place from which , on the approach of sexual maturity ,
they return unerringly to their river of origin , as if drawn by a magnet . According
to the ...
One extreme view pictures them as going unerringly from their river to a
predetermined feeding place from which , on the approach of sexual maturity ,
they return unerringly to their river of origin , as if drawn by a magnet . According
to the ...
Pagina 533
Nonmigratory fontinalis ordinarily spawn every year once they have reached
sexual maturity , but it seems that some of the Salters do not , for the upstream
runs , at least in the Moser River , Nova Scotia , include some large fish that show
no ...
Nonmigratory fontinalis ordinarily spawn every year once they have reached
sexual maturity , but it seems that some of the Salters do not , for the upstream
runs , at least in the Moser River , Nova Scotia , include some large fish that show
no ...
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Sommario
Names of Bones by G W Mead and Margaret G Bradbury | 20 |
Order Lepisostei by R D Suttkus | 61 |
Text and Footnote References | 105 |
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Altre edizioni - Visualizza tutto
Fishes of the Western North Atlantic: Editorial Board: Editor-in ..., Parte 4 John Tee-Van Visualizzazione frammento - 1948 |
Fishes of the Western North Atlantic: Editorial Board: Editor-in ..., Parte 8 John Tee-Van Visualizzazione frammento - 1948 |
Parole e frasi comuni
abund Acad adults Amer American Anal fin apparently Atlantic base Bermuda body Brazil Bull Canada catch caudal Characters coast color Comm counts dark depth descr Description developed diameter distance Distinctive dorsal fin eggs equal Evermann examples extending FIGURE Fish Florida Fowler gill rakers Gulf half head Hildebrand Hist Island Jordan known Lake larger lateral least length less limb longer lower lower limb Maine mandible margin Material Maxillary middle mouth nearly North northern occur origin Panama pectoral Pectoral fin Pelvic fin pointed posterior pounds present probably Proc range rays reaching References refs reported River rows Salmon salt scales side silvery snout spawning species specimens streams Study synon taken teeth upper USNM usually ventral West western York young Zool