On new Genera and Species of Alcyonoid Corals. 405 



EXPLANATION OF PLATE VIII. 



Fiy. 1. Lycosa alhocincta, S : a, palpal organs, left side; h, outer aspect 

 of the same ; c, inner aspect ; d, sternum in partial profile, to 

 show the long erect hairs on its surface. 



Fig. 2. Sallicus pctilus, cJ : a, palpal organs. 



Fiff. 3. Thomisus diversus, 5 '• «> cephalothorax ; b, sexual orifice. 



Fiff. 4, Fhilodromus lepidtis, 2 : «» anterior portion of cephalothorax, 

 represented in a position to show the small pointed process in 

 front of the outer pair of eyes in the anterior row ; b, sexual 

 orifice. 



Fiff. 5. Theridion parvidum , S : a, eyes. 



Fig. 0. Ctenophora motdicola, $ : a, cephalothorax ; b, maxillae and 

 labium ; c, sexual orifice ; d, portions of the first and second 

 pairs of legs, more enlarged, to show the rows of spines. 



Fig. 7. Linj/phia polita, 5 : fl, eyes. 



Fig. 8. Sketch of a left anterior leg of Galena zonata, highly magnified, 

 showing the comb-like appendage. 



XLVI. — Notes on some new Genera and Species of Alcyonoid 

 Corals in the British Museum. By Dr. J, E. Gray, F.R.S., 



V.P.Z.S., «&c. 



BUSELLA. 



Coral fan-shaped, forming an oblong frond, very much 

 branched and closely reticulated, with a number of short 

 club-shaped branchlets diverging from the sides of the frond ; 

 branches and branchlets cylindrical, diverging, furcately 

 branched. Bark thin, granular, smooth. Polype-cells on 

 all sides of the branches and branchlets, sunken, close toge- 

 ther, with a small round mouth. Axis continuous, horny, 

 black. (Plexauridffi.) 



Busella occatoria = Rhipidogorgia occatoria, M.-Edw. & 

 Haime, Corall. i. 179. 



Hab. Guadeloupe. B.M. 



MURITELLA. 



Coral branched in a plane ; stem much compressed, broad ; 

 branches and branchlets subcylindrical, apex subclavate. 

 Bark rather thick, granular, Avith a uniform smooth surface. 

 Polype-cells large, entirely sunken, scattered over the whole 

 surface of the bark, with a very small contracted linear mouth. 

 Axis of the stem and lower branches compressed, homy, of 

 branchlets cylindrical, with a horny external coat, and with 

 soft pith within. (Plexaiu-idae.) 



Ann. d^ Mag. N. Hist. Ser. 4. Vol.y. 28 



