176 



(a) Long club-shaped spiny spicules, the spines becoming longer towards 

 the thick end and pointing in that direction so that they almost approach 

 " foliaceous clubs," 02 x 008 ; 015 x 007. 



(ft) One-sided spiny spindles, 0175 x 0075 ; 0125 x 005. 



(c) Spindles with warts almost in whorls, 0'125 x 0'05 ; Ol x 0'075. 



(rf) Small almost stellate forms, 0'05 x 0'05. 



(6') Double spheres or dumb-bells, 0075x005; constriction 0015 in 

 diameter. 



The spicules of the anthocodiae are long slightly spiny curved spindles, 

 those of the " crown and points " measuring in millimetres 0-3 x O'OS ; 0-2 x 0-025. 



Small rods on the aboral side of the tentacles measure O'O-t mm. x O'Ol mm. 



Locality : Gaspar Straits, East Coast of Sumatra. 



Parisis fruticosa, Verrill. 



{ = Parisis indica, Thomson and Henderson.) 



Specimens of this species occur in the collection from live different localities. 

 As these present certain differences it may be useful to make a few notes 

 on each separately. 



(1) Two broken specimens, the first being a basal portion 12 cm. high and 5 

 cm. broad, with an axial diameter of 8 mm. ; the second 13 cm. in height and H'o 

 cm. in breadth, the main axis having a diameter of 3'5 mm. In the first of these 

 the internodes average 5 mm. in length and the nodes 2 '5 mm., but in the other 

 the internodes near the base measure 6 mm. long, the nodes only 1 mm. In 

 both the branching is not strictly confined to one plane and is quite irregular. 

 An incrustation of " Palythoa " almost obliterates the whole of the polyps. The 

 colour is a greyish-white. 



Locality : Gulf of Martaban, 67 fathoms. 



(2) A splendid specimen 14-5 cm. in height and 12 cm. in diameter. The 

 branching is irregular and is confined to one plane, giving the whole colony a 

 very flabellate appearance. The branches arise at an angle of about 45°. The 

 internodes near the base measure 4 mm. and the nodes 2 mm. The grooving is 

 very distinct. The polyps are not so markedly confined to the lateral branches. 

 The whole colony is overgrown by an incrusting siliceous sponge whose spicules 

 project on the surface. The colour is greyish-white. 



Locality ; Andamans. Marine Survey. 



(3) Two specimens, each with a basal attachment, measuring 14 5 cm. high 

 by 5-5 cm. broad, and 8-5 cm. high by 5 cm. broad, with basal diameters of 6 mm. 

 and 4 mm. respectively. In both the branches arise at right angles, but in one 

 they turn upwards almost parallel to the main stem. The internodes measure 



