Ultrastructural study on the release of neurosecretory material from the sinus gland of the land crab, Gecarcinus lateralis

1969 ◽  
Vol 94 (2) ◽  
pp. 147-154 ◽  
Author(s):  
Mary Weitzman
Keyword(s):  
Ultrastructural Study ◽  
Neurosecretory Material ◽  
Sinus Gland ◽  
Land Crab ◽  
Gecarcinus Lateralis

scholarly journals Some Observations on the Fine Structure of the Sinus Gland of a Land Crab, Gecarcinus lateralis

1958 ◽  
Vol 4 (5) ◽  
pp. 571-574 ◽  
Author(s):  
Mary H. Hodge ◽  
George B. Chapman
Keyword(s):  
Fine Structure ◽  
Size Range ◽  
Sinus Gland ◽  
Uniform Size ◽  
Brachyuran Crab ◽  
Land Crab ◽  
Dense Granules ◽  
The Core ◽  
Gecarcinus Lateralis ◽  
Cytoplasmic Processes

The dilated axon endings of the sinus glands of the brachyuran crab, Gecarcinus lateralis, are filled with homogeneously dense granules, each granule being bounded by a delicate membrane. The granules are of two orders of magnitude: 0.05 to 0.1 µ and 0.15 to 0.2 µ in diameter. Each axon ending contains granules of a nearly uniform size. Endings with granules of the larger size range predominate. Non-nervous cells endogenous to the sinus gland are scattered among the nerve endings. The cell contours are irregular, and cytoplasmic processes ramify between endings. The axons are unmyelinated, having only thin limiting membranes, and they possess many neurofibrils. Granules in preterminal portions of the axons tend to lie at the periphery of the fiber, and in some cases in chains at the core of the fiber. The granules appear to be storage and release centers for neurosecretory substances or their precursors.

Food Quality and Cannibalism in the Red Land Crab, Gecarcinus lateralis

1984 ◽  
Vol 57 (3) ◽  
pp. 318-324 ◽  
Author(s):  
Donna L. Wolcott ◽  
Thomas G. Wolcott
Keyword(s):  
Food Quality ◽  
Land Crab ◽  
Gecarcinus Lateralis

Seed and Seedling Predation of Bromelia pinguin L. by the Red Land Crab Gecarcinus lateralis Frem. in Veracruz, Mexico

Biotropica ◽  
1991 ◽  
Vol 23 (1) ◽  
pp. 96 ◽  
Author(s):  
Jose G. Garcia-Franco ◽  
Victor Rico-Gray ◽  
Oscar Zayas
Keyword(s):  
Land Crab ◽  
Seedling Predation ◽  
Gecarcinus Lateralis
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