552 ZOOPHYTA. TUBULARIAD^. Tubularia. 



TUBULARIAD.^. 



Gen. LXXII. TUBULARIA.— Stem cylindrical, jointed, 

 branched ; polypi with a prominent mouth ; tentacula 

 with suckers, the ovaries seated at their base. 



200. T. indivisa. — Straight, nearly simple ; head with two 

 rows of tentacula. 



Tubular coralline, Ellis, Cor. 31, t. xvi. f. C — T. ind. Linn. Syst. i. 1301. 



— T. calamaris, Pall. El. 81.— Common on shells from deep water. 



Height several inches, some upwards of a foot, rigid, brown ; arising from 



tubular roots ; the stem upwards of j'^th of an inch in diameter ; animal 



with a slender neck, enlarging towards the outer tentacula, above which the 



mouth is produced and fringed with a circle of smaller tentacula. 



201 . T. muscoides. — Stems nearly simple, and closely wrinkled ; 

 head with two rows of tentacula. 



Tubular coralline, wrinkled like a windpipe, Ellis, Cor. t. xvi. f. 6 Po- 

 lypus ruberrimus. Bast. Op. i. 28. t. iii. f. 2— T. mus. Linn. Syst. i. 

 1302. Pall. EL 82 — On shells beyond low water-mark. 

 Stems numerous, two or three inches in height, regularly jointed or 

 wrinkled, more slender than the last ; animal like the last ; outer tentacula 

 about 18, inner ones about 12 in number. 



202. T. 7-amosa. — Stem dichotomously divided, branches al- 

 ternate, tentacula in a single row. 



Ramified tubular coralline, Ellis, Cor. 31. t. xvii. A. — T. ram. Linn. 



Syst. 1302 T. trichodes. Pall. £1. 84 — On stones within low water- 



mark. 



Height two or three inches, slender, brownish, branches ascending, annu- 

 lated at their origin; animal colourless, ovate, tentacula about 10, in an ir- 

 regular circle. 



Gen. LXXIII. PLUM ATELLA.—Stem cylindrical, branch- 

 ed, simple ; polypi \vith a depressed mouth and ciliated 

 tentacula. 



203. P. rcpe?is. — Stem adhering, tentacula disposed in a 

 crescent. 



Tubularia repens. Mull. Hist. Ver. i. part ii. 16. — On the under side of 

 stones, Lochmill-loch, Fife. 

 Stem extending several inches, irregularly branched, slightly enlarging 

 towards the aperture, dilatable ; tentacular margin divided mto two lobes, 

 tentacula ciliated in opposite directions. Besides a gullet, stomach, and gut, 

 there is a distinct rectum, terminating in a tubular orifice seated externally 

 to the tentacular margin, out of which I have witnessed the remains of the 

 food swallowed but a short time before, forcibly ejected. 



