Description: Digital still collected as part of CODEMAP Item Type: Image Title: Reteporella Copyright: CODEMAP Species: Reteporella Site: Atlantic -- Rockall Bank Site Description: Seafloor Depth (m): 216 Latitude: 57 deg 57' 27" N Longitude: 13 deg 58' 38" W Habitat: Bank Rig: RRS James Cook ROV: SeaEye Lynx Deposited By: Ms Katleen Robert Deposited On: 03 October 2013
Cristatella mucedoPlate I: Cristatella mucedo from A monograph of the fresh-water polyzoa : including all the known species, both British and foreign / by George James Allman. London :Ray Society,1856. Description of Plate I Fig.
Cristatella mucedo: an adult specimen, adhering to the submerged stem of Rannaculus aquatilis. Of the natural size.
The same enlarged
Statoblast of Cristatella mucedo in an early stage: it is surrounded by a ciliated membrane, and there is as yet no appearance of the marginal spines.
The same more advanced: the enveloping membrane is destitute of cilia and the spines have begun to grow out from the margin of the disc.
The same, still further advanced: the spines have impinged on the enveloping membrane
The mature statoblast: the enveloping membrane has been torn by the pressure of the spines, and has disappeared, and the statoblast has become free.
The same, viewed on the edge. Figs. 3-7 are magnified about 50 diameters
Natural size of mature statoblast.
From BHL