Full resolution (JPEG) - On this page / på denna sida - Sidor ...
<< prev. page << föreg. sida << >> nästa sida >> next page >>
Below is the raw OCR text
from the above scanned image.
Do you see an error? Proofread the page now!
Här nedan syns maskintolkade texten från faksimilbilden ovan.
Ser du något fel? Korrekturläs sidan nu!
This page has never been proofread. / Denna sida har aldrig korrekturlästs.
By his wurk „0 stracoda médité r r a n e a“, 1887, G. 0. Sars also helped in
a liigli degree to make this group of animais known. This work together with G. WMüller’s
big monograph of 1894 — especially the latter — are the publications that, broadly speaking,
may be said to have carried our knowledge of the forms belonging to this sub-order to its
present standpoint. Not only did the latter work, with its multitude of details, fill many gaps
in our knowledge of the morphology of these animais, but in it, generally speaking, they were
treated, for the first and only time, from standpoints other than a purely
morphological-classificatory one; even their oecology was the subject of a rather thorough study.
Of the other publications that deal with this group we may only mention here:
A. Garbini, 1887, in which Cypridina mediterranea 0. COSTA was submitted to a morphologica
1-histological investigation; the following organs were dealt with: the first antenna,
alimentait-organs, central nerve system, sensory and sexual organs. It is qidte a meritorious work.
C. Claus (1891 b) dealt with the median eye, A. Ramsch (1906) the female sexual organs in
Cypridina; L. LUDERS (1909) made a rather thorough study of the organisation of Gigantocypris.
The first to give a scientific name to and describe a species belonging to the sub-order
Cypridinif ormes was H. MlLNE EDW ARDS in bis treatises of 1838 and 1840. As is seen from
the historica! summary given above this author distinguished the new form from the
other then known recent Ostracods — divided into two genera, Cypris and Cythere
by taking it as a representative af a new genus, Cypridina. W. Baird, 1850a, separated the
then known forms of this group as a special family Cypridinadae, by the side of which he put
the families Cytheridae and Cypridae. C. Claus suggested, 1876 (p. 94, note 1)), that the genus
Asterope should be distinguished as a special family ,,d er Asteropide n" from other
genera of this group then known, namely Cypridina, Monopia and Philomedes. G. S. BRADY
and A. M. NORMAN, 1896, divided the known forms of this group into four families:
Family I. Asteropidac with only one genus Asterope
Crossophorus
Cypridina
< lypridinidae
Philomedes
Streploleberis
Tetragonodon
Paramekodon
Family III. Kutidermattdac .. only one genus Ruliderma
( Eurypylus
,, IV. Sarsiellidae .. three genera Sarsidla
I Nematohamma.
G. W. MÜLLER in his later works (1906 b, 1912) eniploys the following division of this group:
Cypridina
Sub-family I. Cypridinivac with live genera
Pyrocypris
Crossophorus
Codonocera
Gigantocypris
.\utural system.
<< prev. page << föreg. sida << >> nästa sida >> next page >>
