Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, First Part: Porulosa (Spumellaria and Acantharia): Report on the Scientific Results of the Voyage of H.M.S. Challenger During the Years 1873-76, Vol. XVIIIHaeckel, Ernst
Science
Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, First Part: Porulosa (Spumellaria and Acantharia): Report on the Scientific Results of the Voyage of H.M.S. Challenger During the Years 1873-76, Vol. XVIII
Haeckel, Ernst
Radiolaria
+-----------------------------------------------------------------+
| FIRST SUBCLASS. |
+-----------------------------------------------------------------+
| PORULOSA vel HOLOTRYPASTA. |
| |
| Central capsule originally spherical, without osculum or |
| principal opening, with innumerable fine pores. |
+-----------------------------------------------------------------+
| Legion I. | Legion II. |
| SPUMELLARIA. | ACANTHARIA. |
| (PERIPYLEA). | (ACTIPYLEA). |
+--------------------------------+--------------------------------+
| _Central capsule_ | _Central capsule_ |
| originally spherical, | originally spherical, |
| homaxon. | homaxon. |
| | |
| _Capsule-membrane_ | _Capsule-membrane_ |
| single, | single, |
| pores innumerable, | pores numerous, |
| distributed all over. | regularly distributed. |
| | |
| _Nucleus_ central, | _Nucleus_ excentric, |
| originally spherical | (usually dividing early). |
| (usually dividing late). | |
| | |
|_Skeleton_ absent or siliceous, | _Skeleton_ always of acanthin, |
| never centrogenous. | always centrogenous. |
| | |
| _Calymma_ always | _Calymma_ always |
| without phæodium. | without phæodium. |
+-----------------------------------------------------------------+
| SECOND SUBCLASS. |
+-----------------------------------------------------------------+
| OSCULOSA vel MEROTRYPASTA. |
| |
| Central capsule originally monaxon, with an osculum at |
| the basal pole of the vertical main axis. |
+-----------------------------------------------------------------+
| Legion III. | Legion IV. |
| NASSELLARIA. | PHÆODARIA. |
| (MONOPYLEA). | (CANNOPYLEA). |
+--------------------------------+--------------------------------+
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account