WORMS. ZOOPHYTA. 19. Pennatula* 21T 



Tills 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 out-side and opening obliquely. 



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

 cles alternate, with 2 spines at top. 



Ellis Corallines p. 37. n. 3. tab. 20. f. b. B. 



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

 cells like inverted cones, with oblique mouths. 



743. S. ciliata Branches forked, erect: denticles alter- 

 nate, ciliate round' the mouth, funnel-forrm 



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



Minute; whitish* with long briftles at the mouth, 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 tubular beak on one side. 



Ellis Corallines p. 39. n. 6. tab. 21./. a. A. _ 



About an inch high, white : root consifting of interwoven tubes : 

 denticle s cylindrical : vesicles brittle, dottea. 



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

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

 Jong bristle below the mouth of each : vesicles 

 oval, 



Ellis Corallines p. 42. n. 10. tab. z\.f. c\ C. 



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

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

 vesicle s 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 m 

 form: tabes testaceous, annulate, jointed in the middlei It ap- 

 pears to connect the Sertulariaa with the genus Hydra. 



748. ^ ternata. Branched* forked, jointed, creeping; 

 joints somewhat top-shaped, angular at their sides! 

 with 3 cells in the front of each. 



Solander and 1 Ellis Zoopfh p. 30. n. 18. 

 On the shores of Scotland : stony* semitransparcnt. 



79. PENNATULA. Sea Pen. 



749. F.phDsphorea. Stem fleshy, with a rdugk midrib, 

 and imbricate ramifications. 



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



1; k.- 1 lr J Ch , CS long ' T ed » emi ' tin g a strong phosphorescent 

 light in the dark : stem villous* with alanceolate roufch midrrb. 

 4 *n* n i near ! y incumben t »»ys> the tubes all pointing one way, 



750. P. tmrubilit Stem filiform, with a smooth midrib) 



