10 MOPSELLADJi:, 



stony, with short swollen hard and porous joints. Base of the axis 

 e?^panded, discoid, not stellate, lobed. Bark permanent, granular, 

 with scattered spicula. Cells prominent on all sides of the branch- 

 lets, and scattered on the branches. 



Mopsella, Gray, P. Z. S. 1857, p. 284, 1859, p. 486. 

 " I am unable to find any generic difference between M. dicfiotoma, 

 which is the type of Mopsella, Gray, and those subsequently referred 

 by him to the genus Melitella ; and I have, therefore, united the two 

 genera." — Verrill. 



82. Mopsella dichotoma. B.M. 



Coral branched, dichotomous, filiform, diffused, smooth, striated ; 

 iuternodes short, swollen, reddish. 



Hippuris coralloides cornea, Petiver, Gaz. t. 3. f. 10 (with bark). 

 Isis dichotoma, Linn. Si/st. Nat. ed. 10, p. 799 ; Gmel. S. N. p. 3703 ; 



Pallas, Zooph. p. 229; ^A^^er, i. t. 5, 1. 11. f. 4, 5; Lamk. Hist. ed. 2. ii. 



p. 475, n. 3, Mem. Mus. i. p. 418; Herm. Nattirf. xv. p. 135, t. 5. 



f. 1 (barked) ; Schuieixjger, Beub. no. 10, Handb. p. 434. 

 Mopsea dichotoma, Lamx. Polyp. Flex. 1810, p. 406 ; Dana, Exp. p. 678 



(not Seha, t. 100. f. 4) ; Milne-Edio. 6f Haime, Corall. i. p. 197 ; 



Kolliker, Ic. Hist. p. 142, 1. 15. f. 8-10, 1. 19. £ 25. 

 Mopsella dichotoma, Gray, P. Z. S. 1857, p. 284, 1859, p. 480 ; 



Ehrenb. Corall. p. 131 ; Verrill, Bull. Mus. Comp. Zool. p. 38. 



" Polype-ceUs mamilliform on the upper, tubcrculose on the middle, 

 and superficial on the lower branches." — LamJc, Lamx. I. c. p. 408. 



Hab. Cape of Good Hope. With uniform yellow bark (apices 

 deficient). 



83, Mopsella erythracea. 



Shrub-like, forked ; warts scattered. Axis reddish; joints roundish, 

 loagitudiaaUy grooved ; knots slightly tumid. 



Isis erythrus, Milne-Edic. in Lamk. Hist. ed. 2. ii. p. 477. 



Mopsea erytlirtea, Ehrenb. Co7\dl. p. 131 ; Dana, Exp. p. 679 ; Milne- 



Edio. (^- Haime, Corall. i. p. 198. 

 Mopsea erythracea, Kolliker, Ic. Hist. p. 142, 1. 19. f. 43, 44, 1. 16. f. 7. 



Hab. Red Sea. 



" Very like I. gracilis, but branches much more slender. Bark 

 red ; polypes white." — Milne- Edwards, I. c. 



84. Mopsella tenella. 



Fruticose, 3 inches high, deep scarlet, much branched ; branches 

 and branchlets very slender, in no part a line thick, flexuous ; joints 

 3 to 8 lines long; cortex verrucose ; verruca3 small (| line broad), 

 not at all ascending. Polypes bright yellow. Axis calcareous, 

 nearly smooth. 



Melitrea ? tenella, Dana, Exp. p. 683. 

 Melitella? tenella, Gray, P. Z. 8. 1859, p. 486. 

 Melitha3a tenella, Milne-Edw. Corall. i. p. 201. 

 jNIopsella tenella, Verrill, Pull. Mus. Comp. Zool. p. 39. 



llab. Sandwich Islands. 



