...These segmental pairs of gonads are theoriginal ventral halves of the cœlom-pouches... 
Ernst Haeckel 「The Evolution of Man」
...As a fact, thearticulation is by no means chiefly determined and caused by the skeleton, butby the muscular system and the segmental arrangement of the kidneys and gonads...
Ernst Haeckel 「The Evolution of Man」
...On the other hand, the ventral partsgive rise, from their uppermost section, to the pronephridia orprimitive-kidney canals, and from the lower to the segmental rudiments of thesexual glands or gonads...
Ernst Haeckel 「The Evolution of Man」
...The gonads are the most important segmental organs of the hyposoma, in thesense that they are phylogenetically the oldest...
Ernst Haeckel 「The Evolution of Man」
...The oldest form of the kidneysystem in this stem are the segmental pronephridia or prorenal canals, in thesame arrangement as Boveri found them in the amphioxus...
Ernst Haeckel 「The Evolution of Man」
...Moreover, the underlying cutis is also notmetamerous, although it develops from the segmental structure of thecutis-plates (Figs...
Ernst Haeckel 「The Evolution of Man」
...a prorenal duct (nephroductus), b segmental orprimitive urinary canals (pronephridia), c renal or Malpighian capsules...
Ernst Haeckel 「The Evolution of Man」
...In the Annelids, the body of which is composed of a large numberof joints, there is a pair of these pronephridia in each segment (hence theyare called segmental canals or organs)...
Ernst Haeckel 「The Evolution of Man」
...The renal system of the Vertebrates is similar to, yet materially differentfrom, these segmental canals of the Annelids...
Ernst Haeckel 「The Evolution of Man」
...In the Selachii also we find a longitudinal row of segmental canals on eachside, which open outwards into the primitive renal ducts (nephrotomes,p...
Ernst Haeckel 「The Evolution of Man」
...The segmental canals (a pair in each segment of the middle part of thebody) open internally by a ciliated funnel into the body-cavity...
Ernst Haeckel 「The Evolution of Man」
...The segmental arch,nearly flat, was still however used in doorways, and occasionally thesemicircular also, as in the arches of the Retrochoir, ChichesterCathedral...
Matthew Holbeche Bloxam 「The Principles of Gothic Ecclesiastical Architecture, Elucidated by Question and Answer, 4th ed.」
...In Avington Church,Berkshire, is a stone beneath a plain segmental arch...
Matthew Holbeche Bloxam 「The Principles of Gothic Ecclesiastical Architecture, Elucidated by Question and Answer, 4th ed.」
...The south wall ofthe south transept was continued to the west, the greater part of thewest wall of this transept being removed, a segmental arch beinginserted exactly where the oak-screen is now...
H. J. L. J. Massé 「Bell's Cathedrals: The Abbey Church of Tewkesbury」
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