CORALLIFERI. 449 
ScrirPEARIA, Cwv., 
The body is very long and slender, and the Polypi are insulated 
and ranged alternately along the two sides*. In 
Pavonaria, Cuv., 
The body is also elongated and slender, but the Polypi only occupy 
one side, where they are crowned in quincunx f. In 
Reniuia, Lam., 
The body is short, and instead of that part which in Pennatula 
proper is furnished with filaments, has a broad reniform disk bearing 
the Polypi on one of its faces}. In the 
VERETILLUM, Cwv., 
We find a cylindrical bedy, simple and without branches, furnished 
with Polypi in a portion of its length. The bone is usually small and 
the Polypi large. We can trace the prolongations of intestines into 
the common stem in these compound Zoophytes much more easily 
than in any of the others. 
One species that inhabits the Mediterranean—Pennatula cy- 
nomorium, Pall., Miscell. Zool., sae Alcyonium epipeirum, 
Gm.; Rap., Ac. Nat. Cur, AXIVE, ph 2) pl. Xxxvill, 1, 1s frequently 
more than a foot in length, thicker than the thumb, and remark- 
able for the phosphoric light that it diffuses §. 
Finally, in the 
OMBELLULARIA, Cuv., 
We remark a very long stem, supported bya bone cf similar length, 
and terminated at the summit only by a bundle of Polypi||. 
Small, porous and stony bodies, which naturalists have thought 
may be approximated to the Millepora, are found among fossils and 
in the ocean. If they were enveloped by a rind or bark containing 
Polypi, they would be movable Coralliferi, and should rather be 
placed near the Pennatule. Such are the 
Ovuuires, Lam., which have the form of eggs, hellow, and_fre- 
quently perforated at both ends: the Lunuuirss, which are orbicular, 
convex, striated, and porous on one side, and concave on the other: 
and the Orsuuires, that are orbicular, flat, or concave, porous on 
both sides or on the edges. If the Dacrytopora be free, as is the 
opinion of Lamarck, it will also belong to this subdivision; it is a 
* Pennatula mirabilis, L.; Mus. Ad. Fred., XIX, 4. 
+ Pennatula antennina, Bohatsch, IX, 4, 5;—Penn. scirpea, Pall. and Gmelin. 
+ Pennatula reniformis, Ell., Pail. Trans., LIII, xix, 6,13, or Alcyonium agaricum, 
Gin. 
§ Add Pennatula phallotdes, Pall., Misc. Zool., XIII, 5—9;—Pennat. stellifera, 
Miul., Zool. Dan., XXXVI, 1—3. 
|| Pennatula encrinus, Ell., Corall., XXXVITI, a, b, ¢ 
N.B. The Pennatula filosa and the Pennatula sagitta are parisitical animals of the 
genus Lernea (PENNELLA, Oken), and not Pennatule. The Pennat. sagitta, Esper, 
Pennat., pl. v, is very different from that of Linnzus, and is perhaps a Nepthys. 
