436 POLYPI. 
FAMILY I. 
TUBULARII. 
Those of the first inhabit tubes of which the common gelatinous 
body traverses the axis, like the medulla of a tree, and that are open, 
either on the summit or sides, to allow the passage of the Polypi. 
Their more simple Polypi appear to be chiefly analogous to the Hy- 
dra and Cristateile (a), 
Tusreora, Lin. 
Simple tubes of a stony substance, each containing a Polypus. 
These tubes are parallel, and united from space to space by trans- 
verse laminw, which has caused them to be compared to the pipes of 
an organ. The most common species, 
T. musica, L.; Seb., II, ex, 89, is of a beautiful red; its po- 
lypi are green, and formed like Hydra. Very abundant in the 
archipelago of India *. 
It appears that we must approximate to the Tubipora certain 
fossil Coralliferi (Polypiers ) also composed of simple tubes, such as 
the Carrenipora, Lam., where the tubes are deposited in lines that 
intercept vacant meshest; the Favosires, id.t, composed of 
crowded hexagonal tubes, &c. 
Tusucaria, Lin. 
Simple or branched tubes of a horny substance, from the extremi- 
ties of which issue the Polypi. 
The Polypi of the fresh water Tubularize—Plumatella, Bosc. §— 
seem to be closely approximated to the Cristatellze by the disposition 
of their Tentacula. 
Certain species are found in France, that creep over the plants 
of stagnant waters |]. 
Tusuiaria Marina. 
The Polypi of those that inhabit salt water have two ranges of 
tentacula, the outer cne forming radii, and the inner turning up into 
a tuft. One Species, 
* The other Tubipore of Gmelin do not belong to this genus; some of them, 
those of Fab., Groenl., in particular, are perhaps tubes of Annelides, but the suppo- 
sition that the above animal belongs to this last-mentioned class is erroneous. It 
is a true Polypus. See Quoy and Gaym., Zool., de Freycin., pl. 88. 
+ TLubiporacatenulata,Gm., Linn., Ameen., Ac., I, iv, 20. 
t Corallium gothlandicum, Ameen., Ac.. I, iv, 27 :—Fav. commune, Lamouroux, 
Ac., Sol., and Ell., pl. 75, f. 1, 2. 
§ Lamouroux has changed this name to NAIsA. 
\| Zubularia campanulata, Rees,, I1, 1xxiii—lxxv. ;— Tub. Sultana, Blumenb., 
Man., Fr. Trans., II, pl. of p. 10. f.9; Tub. lucifuga, Vaucher, Bullet. des Sc., 
Grim., Ans 12; pk. xix, t-10,a76 
(=> (@ This order is the Potyres A TuyAux of our author. Enc. Ep. 
