24G 



Coenencliyma thin, and jKiper-like, level but .^lightly rough, semi-transparent. 

 VerrucEe in two lateral series, alternate, and alternately directed to front and 

 back. Twigs terminate in two opposite polyps. Verructie, large upright trun- 

 cated cones 1 mm. in height with eight triangular teeth. In Ridley's specimen 

 the spicules were arranged perpendicularly, but in the " Challenger " form they 

 were disposed in horizontal rows. Oral region protected by a covering formed 

 by the spicules on the basal portions of the tentacles. Spicules — spindles straight 

 or curved, densely rorered with closely-set rough warts : — 



{a) Coenenchyma, 1 mm. x 0'178 mm. 



{h) Verrucse, \i> mm. x 0'28 mm. ; 0-9 mm. x 0'14 mm. 



(c) Polyps, 0"35 mm. x 0*07 mm. 



Locality : Port Molle, Queensland, 14-20 fathoms ; off the Ki Islands, south 

 of Papua, 140 fathoms. 



Muricella perramosa, Ridley. 



M. iwrramosa, Ridley. " Ann. Mag. Nat. Hist." Ser. 5, vol. x. p. 128, 1882. 



M. perramosa, Wright and Studer. " ' Challenger ' Report," vol. xxxi. p. 126. 



Branched in one plane, tei'y slender. Coenenchyma thin. VerruCcC hemi- 

 spherical, sometimes elongated in the direction of the long axis of the branch ; 

 on all parts oj the stem and brandies ; on two sides on the twigs ,• height and basal 

 diameter, 0'5 mm. ; 1 ium. apart. Spicules on the verrucas arranged in eight 

 groups prolonged into eight teeth. Tentacular operculum often sunk into the 

 mouth of the calyx. Spicules : — 



{a) Coenenchyma : (1) Spindles densely covered with prominent tubercles 



terminally swollen and roughened, 17 mm. x 0'145 

 mm. ; 1 mm. x 0'18 mm. ; 042 mm. x 0053 mm. 

 (2) Irregular linear, 0"12 mm. to 014 mm. x 0"07 mm. 



(/>) Verrucffi — sub-fusiform with small warts, 0"28 mm. x 0'038 mm. 



(c) Tentacular operculum — spindles, 0265 mm. x 0025 mm. ; 0"2 mm. x 

 0"05 mm. 



Colour (1) carmine-red with white tentacular operculum ; (2) brick-red with 

 yellowish tentacular operculum. 



Localities : Hyalonema -ground, off Japan, 345 fathoms ; Mauritius, 90 

 fathoms. 



Muricella purpurea, Whitelegge. 



M. purpurea, Whitelegge. " Alcyonaria of Funafuti," " Mem. Aus. Mus.," 

 p. 315, 1897. Plate XVII. figs. 26-29. 



Colony erect, branched in one plane. Branches arise perp)endicularly, then 

 bend upwards. Coenenchyma thin on stem and branches, thicker on twigs. 

 Spicules curved and twisted embracing the stem ; the general arrangement is 



