scholarly journals External Morphology and Post-Embryonic Development of Derocheilocaris remanei (Mystacocarida) Revisited, With A Comparison to the Cambrian Taxon Skara

2011 ◽  
Vol 31 (4) ◽  
pp. 668-692 ◽  
Author(s):  
Joachim T. Haug ◽  
Jørgen Olesen ◽  
Andreas Maas ◽  
Dieter Waloszek
Keyword(s):  
Embryonic Development ◽  
External Morphology

Embryonic development of Zoraptera with special reference to external morphology, and its phylogenetic implications (Insecta)

2013 ◽  
Vol 275 (3) ◽  
pp. 295-312 ◽  
Author(s):  
Yuta Mashimo ◽  
Rolf G. Beutel ◽  
Romano Dallai ◽  
Chow-Yang Lee ◽  
Ryuichiro Machida
Keyword(s):  
Embryonic Development ◽  
Special Reference ◽  
External Morphology ◽  
Phylogenetic Implications

Quantitative estimation of the stage of embryonic development in the locust, Schistocerca gregaria

Development ◽  
1970 ◽  
Vol 23 (3) ◽  
pp. 705-718
Author(s):  
N. M. Tyrer
Keyword(s):  
Embryonic Development ◽  
Structural Changes ◽  
Schistocerca Gregaria ◽  
Quantitative Estimation ◽  
External Morphology ◽  
Structural Development ◽  
Stage Of Development ◽  
Embryonic Muscle

An understanding of the physiological and structural development of an embryo requires a knowledge of the precise state that development has reached. Without this knowledge it is not possible to compare findings from experiments performed on different embryos or to relate them to structural changes during development. In previous work on Acridid embryos two methods have been used in estimating the stage of development. Some authors have defined embryonic stages by their age from the time of oviposition (Slifer, 1932; Roonwal, 1936, 1937; Hong, 1968), while others have described development in a series of arbitrarily chosen stages, which are based primarily on changes in the external morphology (Steele, 1941; Jhingran, 1947; Mathée, 1951; Shulov & Pener, 1959, 1963). The eggs of Schistocerca gregaria are laid in pods of 30–90. Pods were collected and kept under constant conditions in order to investigate the development of the embryonic muscle (Tyrer, 1968, 1969).

The embryonic development of Stylops ovinae (Strepsiptera, Stylopidae) with emphasis on external morphology

2015 ◽  
Vol 44 (1) ◽  
pp. 42-68 ◽  
Author(s):  
Maximilian Fraulob ◽  
Rolf Georg Beutel ◽  
Ryuichiro Machida ◽  
Hans Pohl
Keyword(s):  
Embryonic Development ◽  
External Morphology

scholarly journals And thereby hangs a tail: morphology, developmental patterns and biomechanics of the adhesive tails of crested geckos ( Correlophus ciliatus )

2021 ◽  
Vol 288 (1953) ◽  
pp. 20210650
Author(s):  
Aaron H. Griffing ◽  
Thomas J. Sanger ◽  
Lilian Epperlein ◽  
Aaron M. Bauer ◽  
Anthony Cobos ◽  
...  
Keyword(s):  
Embryonic Development ◽  
External Morphology ◽  
Developmental Patterns ◽  
Serial Homology ◽  
Adhesive Ability ◽  
Adhesive Performance

Among the most specialized integumentary outgrowths in amniotes are the adhesive, scale-like scansors and lamellae on the digits of anoles and geckos. Less well-known are adhesive tail pads exhibited by 21 gecko genera. While described over 120 years ago, no studies have quantified their possible adhesive function or described their embryonic development. Here, we characterize adult and embryonic morphology and adhesive performance of crested gecko ( Correlophus ciliatus ) tail pads. Additionally, we use embryonic data to test whether tail pads are serial homologues to toe pads. External morphology and histology of C . ciliatus tail pads are largely similar to tail pads of closely related geckos. Functionally, C . ciliatus tail pads exhibit impressive adhesive ability, hypothetically capable of holding up to five times their own mass. Tail pads develop at approximately the same time during embryogenesis as toe pads. Further, tail pads exhibit similar developmental patterns to toe pads, which are markedly different from non-adhesive gecko toes and tails. Our data provide support for the serial homology of adhesive tail pads with toe pads.

scholarly journals External Morphology of Immatures of Mischocyttarus nomurae Richards (Hymenoptera, Vespidae) during the Post-embryonic Development

Sociobiology ◽  
2016 ◽  
Vol 63 (3) ◽  
pp. 998 ◽  
Author(s):  
Agda Alves Rocha ◽  
Edilberto Giannotti
Keyword(s):  
Embryonic Development ◽  
Average Length ◽  
Average Rate ◽  
Social Wasp ◽  
External Morphology ◽  
Average Width ◽  
Chapada Diamantina ◽  
Larval Instars ◽  
The City ◽  
Average Measure

The work on this paper aimed to perform the description of the immatures and determine the number of larval instars in the post-embryonic development of Mischocyttarus nomurae Richards, a social wasp which the only works performed were the description of the specie and of the male.  Twenty colonies were collected in the city of Rio de Contas, in the region of the Chapada Diamantina, Bahia, Brazil and there were dimensioned 145 eggs, 349 larvae, 12 pre-pupae and 59 pupae. The eggs presented an average length of 1.03 ± 0.12mm and diameter of 0.40 ± 0.03mm. The average rate of growth of the larvae that presented five instars was 1.49. The width of the cephalic capsule of the larvae was: 1st instar 0.32 ± 0.08, 2nd instar 0.54 ± 0.06, 3rd instar 0.77 ± 0.07, 4th  instar 1.05 ± 0.10 and 5th instar 1.55 ± 0.07. The average width of the larvae of 5th instar and pre-pupae were close, where larvae of the 1st instar differed from the egg, being smaller. The average measure of the pupae was 1.85 ± 0.08. The specie presents two abdominal lobes highly projected towards and the first thoracic spiracle is 3.1 times higher than the second one. This is the first work on the biology of the specie.

Sign in / Sign up

Export Citation Format

Share Document