10 MOPSELLAD2E. 



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

 expanded, 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. 1867, p. 284, 1859, p. 486. 

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

 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 ; 

 internodes short, swollen, reddish. 



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

 Isis dichotoma, Linn. Syst. Nat. ed. 10, p. 799 ; Gmel. S. N. p. 3793 ; 



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



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



f. 1 (barked) ; Schweigger, Beob. no. 10, Handb. p. 434. 

 Mopsea dichotoma, Lamx. Polyp. Flex. 1816, p. 466 ; Dana, Exp. p. 678 



(not Seba, t. 106. f. 4); Milne-Edw. $ Haime, Corall. i. p. 197; 



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

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



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



" Polype-cells mamilliform on the upper, tuberculose on the middle, 

 and superficial on the lower branches." Lamk., Lamx. 1. c. p. 468. 



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

 deficient). 



83. Mopsella erythracea. 



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

 longitudinally grooved ; knots slightly tumid. 



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

 Mopsea erythraea, Ehrenb. Corall. p. 131 ; Dana, Exp. p. 679 ; Milne- 

 Edw. & Haime, Corall. i. p. 198. 

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



Hob. Red Sea. 



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

 red ; polypes while." 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 ; verruca small (| line broad), 

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

 nearly smooth. 



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

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

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

 Mopsella tenella, Verrill, Bull. Mus. Comp. Zool. p. 39. 



Hob. Sandwich Islands. 



