ALC YON ARIA. 315 



The specimen approximates closely to the description of Juncella fragilis given 

 by Eidley (1884). The only marked differences are in the colour and in the diameter 

 of the axis at the hase. The larger diameter can be easily accounted for by the 

 large size of the specimen, 508 millims. But it seems useful to record a new colour 

 variety. 



Locality: Gulf of Manaar. 



Previously recorded from Port Denison, Queensland ; 4 fathoms. 



Juncella trilineata, n. sp. 



Height of specimen 238 millims. It is sparingly branched in one plane, the first 

 branching occurring at a height of 67 millims. There is a distance of 10 - 5 millims. 

 between this and the next branching. The colony is exceedingly flexible and very 

 graceful. The base is wanting, but the stem at its lower end measures 3*5 millims. in 

 diameter. 



Polyps arise in three different bands, leaving three narrow bare strips, each of which 

 has in its centre a slight rib or keel. Under each bare strip lies a large longitudinal 

 canal. The axis shows longitudinal grooves. 



The polyps, which measure from l'l millims. to 1'5 millims. in height, are arranged 

 in transverse rows of 3 or 4, but many smaller polyps occur which break this 

 regularity. 



The spicules resemble those of Juncella gemmacea in several of their forms. 

 Unsymmetrical clubs, length by breadth, 0"08 millim. by 0'03 millim. ; 0"065 millim. 

 by 03 millim. ; 0-07 millim. by 0"04 millim. ; 0-07 millim. by 0-03 millim. 



Double stellate forms, - 08 millim. by - 04 millim. ; diameter of spindle, 0*02 millim. 

 0-09 0-035 0-02 



Locality : Patani, Siarn.* 



Verrucella rubra, n. sp. Plate IV., fig. 13 ; Plate V., fig. 8. 



A fragment of a colony, which has a total height of 98 millims. and a maximum 

 width of 69 millims., appears to require the establishment of a new species. The 

 base and the lower part of the colony is wanting, and many of the branches seem to 

 be without the upper portion. 



The axis, which measures 2 - 25 millims. in diameter at the lower end, is greyish- 

 brown in colour, with a white central core, very calcareous, rigid, and brittle. 



The branching of the colony is very profuse and is confined to one plane. The 

 branches and twigs are given off at a right angle or at a close approximation thereto. 

 There does not appear to be any fixed arrangement in the branching. 



* This specimen, along with two others (Asirmnmicea ramosa, n. sp., and Telesto Irichosiemma), was given 

 to me on a visit to Professor Hekdman's laboratory by Mr. Nelson Annandale, who asked that it 

 might be incorporated in this Report. J. A. T. 



2 S 2 



