Retinal mosaics of a primitive jumping spider, Spartaeus (Salticidae: Araneae): a transition between principal retinae serving low and high spatial acuities

Previous papers have described the receptor mosaics in the tiered principal retinae of jumping spiders with high and low visual acuities, respectively. Nevertheless, current evidence does not establish that the low acuity principal retinae of primitive jumping spiders were modified to yield the high...

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Bibliographic Details
Published in:Protoplasma 1985-01, Vol.125 (1/2), p.129-139
Main Authors: Blest, A.D, Sigmund, C
Format: Article
Language:English
Subjects:
Arachnida
Araneae
Biochemistry. Physiology. Immunology
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Invertebrates
mosaicism
Physiology. Development
receptors
retina
Salticidae
vision
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Summary:Previous papers have described the receptor mosaics in the tiered principal retinae of jumping spiders with high and low visual acuities, respectively. Nevertheless, current evidence does not establish that the low acuity principal retinae of primitive jumping spiders were modified to yield the high acuity retinae of advanced forms: each might have evolved independently from a common precursor. The authors now show that the principal retina of Spartaeus (the type genus of a primitive subfamily, the Spartaeinae) is a true intermediate between the low acuity retina of Yaginumanis and the high acuity retina of Portia (also in the Spartaeinae).
ISSN:0033-183X
1615-6102
DOI:10.1007/BF01297358