ACTINOZOA. 493 
Melitella Jlahellatn (p. 6)^ loc. incert. ; M, atroruhens {j=.Melitea ochracea 
(pt.), Lamx. MSS.), India ; M, linearis, loc. incert., spp. nn. (pp. 6, 6). 
Clathraria acuta, sp. n. (p. 12), loc. incert, 
Trinella (g. n.) swinhoei (p. 12), Formosa. 
Acanella, g. n. (p. IG). A. arhuscula (Johnson). 
Equisetella, g. n. (p. 18). Isis gregorii (Gray, 1868). 
Gorgonella cumingi, sp. n. (p. 28), Philippines. 
Viminella, g. n. (p. 28). V.juncea, Gray (p. 2d) = Juncella vimen, M.-Edw. 
& Haime. 
Reticdla, g. n. (p. ^Qi),Jlexuosa (M.-Edw. & Haime). 
Branddla intricata, sp. n. (p. ^V), — Raynci‘dla aurantia. Gray (1869). 
Wrighidla (g. n.) chrysanthos, coccinea, spp. nn., Gray (p. 32), Seychelles, 
Ceram. 
Xiphocdla, g. n. (p. 36), esperi (p. 36),= Gorgonia verticdlata (Esper). 
Plumardla, g. n. (p. 36),— Gorgonia penna, Lamk., and Callogorgia pluma^ 
tilis. Gray. 
Callicella (g. n.) degans, sp. n. (p. 37), Formosa. 
Nicella (g. n.) mauritiana (p. A()),=iScirpearia dichotoma. Gray (1869). 
Tliouardla, g.n. (p. 46), antarctica (Valenc.). 
Hooherella (g. n.) pulclidla (p. 46), Antarctic Ocean. 
Fandlia, g. n. (p. 46), compressa (Verrill). 
Stenelln, g. n. (p. 48), imbricata (Johnson). 
Narella, g. n. (p. 49), regrdaris (Duchass. & Michel,). 
Dichotdla (g. n.) divergens (p. 60), loc. incert. 
Dr. Gray (Ann. N. II. (4) v. pp. 406-408) has established the following 
new genera from specimens in the British Museum : — 
Rusdla, gen. nov.. Gray (ihid. p. 406). B. occatoria— Rhipidogorgia occa- 
toria, M.-Edw. & Haime, Guadeloupe. 
Muritdla, gen. nov., Gray {ib. p. 405). 31. fucosa = Gorgonia fucosa, Valen. 
(^—Gorgonia palma var. alba, Esper, and G. albicans, K611.). 
Boardla jiabdlata, gen. et sp. nov., Gray {}. c. p. 406). Coral branched in 
a plane, fan-shaped, forming an oblong frond with a single stem ; branches 
and branchlets slender, nearly of the same diameter, netted ; branches di- 
verging and often inosculating, some of the marginal branchlets free. Bark 
thin, formed of thin scales or spicules. Polyp-cells subcylindrical, elongate, 
truncate, membranaceous, translucent, with a circular mouth with 10 mar- 
ginal folds and 10 short valves in an irregular series on each side of the 
branches, diverging in diJBferent directions, one, sometimes two or three 
together. Axis continuous, horny. British Museum. Locality unknown. 
Menacdla, gen. nov., Gray(/. c. p. 406). 31. reticularis = Gorgonia reticularis, 
Pallas. 
Rhceocdla, gen. nov.. Gray (/. c. p. 406). P. tuberculata — Gorgmia Uibercu^ 
lata, Esper. 
Bovella ramidosa, gen. et sp. nov.. Gray {1. c. p. 407). Coral branched, 
fan-shaped, expanded into an oblong frond ; stem simple ; branches and 
branchlets slender, of the same diameter throughout, branches radiating and 
irregularly furcately divided, with abundance of short branchlets arranged 
rather pinnately and diverging at nearly right angles, forming a more or less 
regular network; many of the branchlets, especially the marginal ones, free. 
Bark furfuraceous, formed of very small soft spicules or thin scales. Polyp- 
cells circular, prominent, with a sunken centre and a furfuraceous surface, 
