1910.] FROM MERGUI ARCHIPELAGO, 805 



Dimensions : — 



Stem, diameter 0-20-0-24 mm. 



Hydranth-beaiing ramules, diameter . 0-ll-0'l(5 mm. 



Localities. Many colonies from St. 22, Hastings Harbour, 3 to 

 20 fathoms and sliore, rock and sand ; and a few poor colonies, paler 

 in colour, from each of Stations 23, Five Islands, 8 to 12 fathoms, 

 I'ock and sand, and mud ; and 25, Gregory Group and Crichton 

 Island, 4 to 14 fathoms, stones and broken shells, and rock. 



Recorded originally by Allman fi'om S.S.VV. of Tortugas, at a 

 depth of 60 fathoms, this doubtful species forms an addition to 

 the fauna of Indian seas. 



EuDENDRiUM GEXERALis Lendenfeld, 1885. 



The colonies belonging to this species are mature, bat are 

 only about 1 cm, in height. They bear well- developed female 

 gonophores, oval in shape, which spring in a whorl of four or five 

 from the base of a hydranth, as in Kirkpatrick's description and 

 figures (1890, p. 607, pi. xv. fig. 2), 



The trophosome of this species is hard to distinguish from that 

 of J*J. capillare. The more slender character of the branches of 

 the latter, relied on in part by Kirkpatrick, is of little value, 

 since a considerable amount of variation occurs in both species. 

 On the other hand, the branching of E. cajyillare is more profuse, 

 and irregular ; also in the Australian species there is, in the 

 smaller bi-anches, distinct alternation, while the whole colony 

 appears more rigid than the lax growths of E. cupillcQ'e. 



Dimensions : — 



Stem, diameter 0"14 mm. 



Hydranth-bearing ramule, diameter 0*09 mm. 



Locality. Creeping in small quantity upon Evdendrium attenio- 

 aiuni ? and Idia 2^'''i-stis, both from St. 22, Hastings Harbour, 

 3 to 20 fathoms and shore, rock and sand. 



Until the 2:)resent record from the Indian Ocean, this species 

 has been found only in the Australian region : Port Phillip, near 

 low water (Lendenfeld, 1885, p. 351); Torres Straits — 20 miles 

 N.iST.W. of Warrior Island, 5^ fathoms ; Murray Island, 15 to 

 20 fathoms (Kirkpatrick, 1890, p. 607). 



Family CoRYNiDyE. 

 Cladocorvxe haddoni Kirkpatrick, 1890. 



Except in size (for they are even more diminutive than those 

 recorded by Kirkpatrick and Jliderholm), the Mergui specimens 

 agree with the description and figures of the former, the doulile 

 wrinkle at the base of the stalk being very evident. On occasion, 

 one or two additional wrinkles may occur at the base of the stalks 

 and, more seldom, on their middle portions ; but in the majority 

 of cases these rings are of little significance, since they belong to a 

 new stalk regenerated after the destruction of the old one. Here, 



