45 



face of the tentacles there are two rows of small, Hat, blunt, rod-shaped spicules, 

 with rough projections on the edges. 



The Stiitzbiindel is well develoi^ed, and consists of a number of spindles 

 which may reach a length of 2-4 mm. and may project for a distance of 0*8 

 mm. beyond the i)olyp-head. 



Cortical spicules : (a) Those of the stem are slender spindles, either 

 straight or curved, covered with numerous small spines, and small, flattened, 

 rod- or bar-shaped forms with very few small spines. The spindles vary in 

 length from 0-4 to 1"6 mm. and in breadth from 0'032 to 0"08 mm. The rods or 

 bars may reach a length of 0'24 mm. The spicules of the stem and branches 

 give these parts a peculiar stringy appearance, very like newly chopped 

 hay. 



(Ij) Those of the stalk are spindles, shorter, thicker, and with rougher, more 

 prominent spines than those of the stem. They are from O^M to 1"6 mm. long, 

 and from 0048 to 01 28 mm. broad. 



Canal -wall spicules : {(/) In the stem there are short thick spindles, 

 straight or curved ; a few three-rayed forms ; a few four-rayed forms, and a 

 large number of Hat, smooth rods or bars, which have a number of fairly pro- 

 minent blunt spines on theii- edges, and measure from 0'048 to 024 mm. in 

 length and have an average breadth of 0'032 mm. The short thick spindles 

 measure up to 080 mm. in length and 016 mm. in breadth. 



{b) The stalk has small, smooth, flat, irregular spindles, and irregular, 

 branched forms, all with sharj), prominent spines on the edges. They vary from 

 0-048 to 0-16 mm. in length. 



Colour — Stalk greyish-white ; lower part of stem whitish ; upper part and 

 branches violet-tinted, which gradually becomes more distinct as the smaller 

 branches are reached ; polyp-stalks light orange ; polyps yellow. 



Locality : Padaw Bay (Dr. Anderson). 



Dendronephthya divaricata, Gray. 



To this species we refer a bush-shaped colony which measures 4 cm. in 

 height and 2 cm. in greatest width. The colony is rigid, nearly regular in out- 

 line and has a long slender stalk and a greatly flattened polyparium which is 

 egg-shaped in outline. 



The colour of the stalk is yellowish-pink, that of the stem and principal 

 branches whitish-yellow, while the twigs and polyps are of a beautiful violet- 

 pink colour. 



Locality : Andamans. 



This species has been previously recorded from New Guinea (the original 

 type specimen), and from the Philippines (Kolliker). 



