 |
Marine Biodiversity and Ecosystem Functioning EU Network of Excellence |
|
 |
| |
Photo GalleryPourtalesia (ontogeny of oral plating)
Description Development of the oral plate pattern during ontogeny: a. The labral plate (1 in green interambulacral area) is in contact with the sternal plate (2). The pairs of ambulacral plates (l - 3 in yellow area) are positioned one beside the other in each column. b. The labral plate (1) is separated from the sternum (2) by one ambulacral plate of column A I and resp. A V (lb2 + ya2). c. The second ambulacral plates 2 in column A I resp. AY (la2 + Vb2) have shifted to the median axis pushing the labral plate (l) anteriorly. d. The ambulacral plates I in column A I resp. A V have pushed the labral plate into the peristomial groove, separating also the plates 1 and 2 in the anterior interambulacra lA 1 and lA 4 (11 from 1ab2 resp. 41 from 4ab2). d. ln ambulacrum I as well as in ambulacrum V the plates 2have shifted to a position the one in front of the other along the axis. After David (1987).
JPG file - 198.34 kB - 1 844 x 987 pixels
added on 2009-02-23569 viewsERMS taxaScan of drawing Pourtalesia A. Agassiz, 1869checked Kroh, Andreas 2021-02-24
From reference Schultz, H. (2009). Sea urchins II: Worldwide irregular d...
Download full size
© 2009 Schultz, Heinke
Click here to return to the thumbnails overview Disclaimer: MarBEF does not exercise any editorial control over the information you may find at our species gallery. However, if you come across any misidentifications, spelling mistakes or low quality pictures, your comments would be very much appreciated. We will correct the information or remove the image from the website when necessary or in case of doubt © Copyright Notice To download: Acknowledge photographer (and copyright if different) when using these pictures in publications or web sites. VLIZ does not have copyright for these pictures, unless for those where it is explicitly stated. Click here for complete Copyright Notice. To upload: By uploading a picture you declare you have the right to do so. Please give as much information on the picture as possible; minimum requirement is photographer and/or copyright holder. Click here for complete Copyright Notice. | |
|
| ||||||||||||||||||||||||||||||||||||||||||
 | Web site hosted and maintained by Flanders Marine Institute (VLIZ) - Contact data-at-marbef.org |
