WITHIN THE GENUS DENDRONEPHTHYA. 



61 



Text-fiff. 19. 



Descriptive Notes : — 



1 . Colony as a whole. Divaricate ; witl.out regular outline ; 

 somewhat flattened ; with loose clusters of polyps ; agrees generally 

 with Henderson's description. 4 colonies in all. 



2. Branching. Short. 



3. Colour. General surface wliite, with the spicules of the 

 anthocodise and suppoi^ting bundles coral -pink. 



4. Polyp stalks. Long. 



5. Polyps in loose clusters of 6 or so. 



6. Polyp spicules. The anthocodial 

 8 points 'consist of two curved spindles, 

 one always larger than the other and 

 projecting markedly beyond the polyp. 

 The crown shows 3 rather loose hori- 

 zontal rows, while below these and pro- 

 jecting outwards there are 8 stronger 

 spindles approaching in size those of the 

 points. 



The supporting bundle is strongly 

 developed, and consists of one very pre- 

 dominant spindle based in numerous 

 small ones. 



7. Other spicules. On the aboral sur- 

 face of the tentacles the armature is 

 very conspicuous. Very characteristic 

 in the cortex among the strong spindles 

 are numerous small, irregular, \\ arty spicules, often triradiate or 

 with irregular rays in different directions. Among them are 

 minute warty capstans like those figured by Henderson for the 

 canal-walls. 



Locality: — Station 125. 



Another specimen with the same anthocodial armature, notably 

 two unequal curved spindles rising in each point from a crown 

 of 2-3 longitudinal rows, has a regular outline and only a slight 

 hint of flattening. The spicules are coarsely tubei^culate spindles 

 and numerous irregular warty discs. 



The spicules of the anthocodial and supporting bundles are 

 amber-red and those of the general surface are golden yellow. 



Locality :— Station. East of Polloe Weh. 



D. orientalis Hend. 



III. UMBELLATE. 



13. Dendroneplithya collaris (Wr. & Stud.). 



Described by Wright & Studer in Rep. Sc. Res. ' Challenger,' 

 vol. xxxi. pp. 208-210 (1889). 



Diagnosis.— Umbellate ; contour irregular ; basal branches 

 foliaceous and form a collar ; polyps arranged in small roundish 



