414 POLYPI. 
P. grisea, Gm.; Albinus, Annot. Acad., I, vi, 1, 2. Larger, 
with broader and more spinous laminz; stem smooth. More 
particularly in the Mediterranean(1). 
VIRGULARIA, Lam. 
The Virgulariz only differ from the Pennatule in their wings, 
which, much shorter in proportion to their total length, are desti- 
tute of spines(2). 
These wings sometimes merely represent transversal ranges of 
tubercles(3). In 
ScIRPEARIA, Cuy. 
The body is very long and slender and the Polypi are insulated 
and ranged alternately along the two sides(4). In 
Pavonaria, Cuv. 
The body is also elongated and slender, but the Polypi only oc- 
cupy one side, where they are crowned in quincunx(5). In 
ReniLia, Lam. 
The body is short, and instead of that part which in Pennatula 
proper is furnished with filaments, has a broad reniform disk bear- 
ing the Polypi on one of its faces(6). In the 
VERETILLUM, Cuv., 
We find a cylindrical body, simple and without branches, fur- 
(1) Add Pennatula argentea, Sol. and Ell., Zooph., VUI, 1, 2, 3;—P. grandis. 
(2) Pennatula mirabilis, Mill., Zool. Dan., XI, very different from the true 
Pennat. mirabilis of Linnzus. 
(3) Pennatula juncea, Pall. and Gm.; also very different from the P. mirabilis, 
L. The Virgulaire australe, Lam., does not differ from the juncea. 
(4) Pennatula mirabilis, L.; Mus. Ad. Fred., XIX, 4. 
(5) Pennatula antennina, Bohatsch, IX, 4, 5;—Penn. scirpea, Pall. and Gmelin. 
(6) Pennatula reniformis, Ell., Phil. Trans., LIII, xix, 6, 13, or Aleyonium aga- 
ricum, Gm. 
