Desmognathus ochrophaeus: Geoffrey Hammerson

2004 ◽  
Author(s):  
Keyword(s):  
Desmognathus Ochrophaeus

A Reinterpretation of the Reproductive Cycle and Demography of the Salamander Desmognathus ochrophaeus

Copeia ◽  
1968 ◽  
Vol 1968 (2) ◽  
pp. 299 ◽  
Author(s):  
Stephen G. Tilley ◽  
Donald W. Tinkle
Keyword(s):  
Reproductive Cycle ◽  
Desmognathus Ochrophaeus

Conspecific Recognition by Desmognathus ochrophaeus Using Substrate-Borne Odor Cues

1996 ◽  
Vol 30 (3) ◽  
pp. 447 ◽  
Author(s):  
A. Lelania Evans ◽  
Don C. Forester
Keyword(s):  
Odor Cues ◽  
Conspecific Recognition ◽  
Desmognathus Ochrophaeus

Spermatophore Formation in Desmognathus ochrophaeus (Amphibia: Plethodontidae)

Copeia ◽  
1985 ◽  
Vol 1985 (2) ◽  
pp. 394 ◽  
Author(s):  
David M. Sever ◽  
Lynne D. Houck
Keyword(s):  
Desmognathus Ochrophaeus

Fine Structure of Some Plethodontid (Caudata: Plethodontidae) Spermatozoan Cytoplasmic Droplets

1977 ◽  
Vol 35 ◽  
pp. 616-617
Author(s):  
J. W. E. Wortham ◽  
S. H. Vernick ◽  
J. E. Morrison ◽  
D. R. Patek ◽  
S. M. Thompson
Keyword(s):  
Animal Species ◽  
Chemical Nature ◽  
Vas Deferens ◽  
Light And Electron Microscopy ◽  
Electron Microscopy Level ◽  
Plethodontid Salamanders ◽  
Middle Piece ◽  
Plethodon Jordani ◽  
Mature Spermatozoa ◽  
Desmognathus Ochrophaeus

Spermatozoan cytoplasmic droplets have been noted in a variety of animal species. Although their function and chemical nature is as yet undetermined, Noble and Weber (1) suggested that droplets in plethodontid salamanders are useless vestiges retained on the mature spermatozoa, while Murphy et al. (2) have suggested that the cytoplasmic droplets may play some role in sperm maturation. The object of the present study is to determine the morphology and chemical nature of these droplets at the light and electron microscopy level.In our studies of spermatozoan cytoplasmic droplets, we used the sperm from Plethodon jordani and Desmognathus ochrophaeus (Caudata, Plethodontidae). The droplets were observed in testicular material of both species and from spermatozoa taken from the vas deferens of Desmognathus ochrophaeus, and were most often found associated with the middle piece of the spermatozoa. The droplets were limited by a single membrane and located on the side of the axial rod opposite the undulating membrane and flagellum (Fig. 1 and 2).

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