WORMS. ZOOPHYTA. 79. Pennatula. 211 



lilt's Corallines p. 38. n. 4. tab. 20. /. c. C. 



Very brittle, linear, pale, with a double row of cells, each with 

 a pointed projecting angle on the 1 out-side and opening-obliquely. 



742. S. reptans. Branches forked, creeping: denti- 

 cles alternate, with 2 spines at top. 



llis Corallines p. 37. n. 3. tab. 2.0. /. b. B. 



Creeping on other corallines, hardly an inch long, white or greyish: 



cells like inverted cones,, with oblique mouths. 



7 13. S. ciliata Branches forked, erect: denticles alter- V 

 nate, ciliate round the mouth, funnel-form. 



Ellis Corallines p. 38. n. 5. tab. 20 /. d. D. 



Minute, whitish, with long briftks at the mouthy which is 

 fometimes covered with a concave teftaceous lid : globules like a 

 birds head. 



744. S. eburnea. Branches spreading : denticles alter- 

 nate, truncate, a little prominent : vesicles oval, 

 with a tuhular beak on one side. 



Ellis Corallines pi 39. n.6. tab; ei./. a. A. 



About an inch high, white : root consifung of inter vroventubct ; 

 denticles cylindrical : vesicles brittle, dotteu. 



745. S. cornuta. Branches alternate : denticles : open- ^ 

 ing; one way, a little incurved, truncate, with a 

 long bristle below tfie mouth of each : vesicles 

 oval. 



Ellis Corallines p. 42. n. to. tdb. 41 ./. c. C. 



Hardly 4 inches long, ftony, clear white: foot consifting of 

 jointed tubes : denticles tapering to the bafe, a little incurved: 

 vesicles dotted, with a short tubular neck on one side. 



746. S. loricata. Branches alternate: denticles opening- 

 one way, with a raised margin round the mouth, at 

 the base of which is a short spine. 



Ellis Corallines p. 42. n. 9. tab. 22. f, b. B. 



Denticles like inverted horns placed one over the other, open- 

 ing on the inside, with a short briftle on the lower-part of the 

 mouth, and another at top in the terminal-ones. 



747. S. anguina. Stem simple, without denticles, beset 

 with quite simple alternate obtuse -clavate tubes open- 

 ing on one side. 



Ellis Corallines p. 43. n, 11. tab. 22. /. c.C. D. 



Climbing up marine substances, white, soft, flexible, varying in 

 form : tubes testaceous, annulate, jointed in the middle. It ap- 

 pears to connect the Sertulariae with the genus Hydra. 



748. S. ternata. Branched, forked, jointed, creeping; 

 joints somewhat top-shaped, angular at their sides, 

 with 3 cells in the front of each. . 



Solander and Ellis. Zooph.-p. 30. n. 18. 



On the shores of Scotland : stony, semitransparent. 



79. PENNATULA. Sea Pen. 



749. P. phosphorea. Stem fleshy, with a rough midrib, 

 and imbricate ramifications. 



Phil. Trans. 53, tab. 19. /, 1-5. Nat. Miscell.tab. 39. 



About 4 inches long, red, emitting a strong" phosphorescent 

 light in the dark : stem villous, with a lanceolate rough midrib, 

 and nearly incumbent rays, the tubes appointing one way. 



750. P. mirabilis Stem filiform, with a smooth midrib* 



T 



