840 L. A. BORRADAILE. 



This species is near to C. juncea Allm. from Ceylon (4, p. 260), but differs in the 

 rarity of the nodes, in the absence of a joint between the hydrotheca-stalk and its bracket, 

 and in the smaller height. 



Taken on the reef at Huliile, Male Atoll, and Goidu, Goifurfehendu Atoll, and dredged 

 in Kolumadulu, N. Male, and S. Nilandu Atolls in 20 — 25 fathoms. 



7. Gampanularia sp. 



The body of a black and white sea snake from Male is covered in the middle half of 

 its length with a thick growth of a hydroid. Unfortunately the preservation of this hydroid 

 is very bad, perhaps because it was already dead when the snake was caught. There is a 

 branched, creeping hydrorhiza on the scales of the snake, which were being shed and bringing 

 the growth away with them. From this arise many hydrocaulus stems. Primary branches 

 come off irregularly on all sides of the main stem, and themselves bear secondary branches. 

 On the stem and on the branches of both orders are shorter twigs with wavy walls. These 

 twigs bear the hydranths, but the latter are in such a state of preservation that nothing 

 can be certainly made out in them. There are, however, some indications of a delicate 

 hydrotheca, and on this account I have placed the specimen here. Both branches and twigs 

 are directed upwards at a sharp angle with the stem. 



This partnership recalls the case of a small fish found by Alcock to be covered by a 

 Stylactis (1). In the present instance, however, it would seem that the advantage must be 

 all on the side of the hydroid, if indeed either party derive any benefit from the association. 

 It is at least difiicult to imagine a sea snake wanting any weapon but its own fangs. 



Subfamily Lafoeinae. Genus Lictorella. 



Schneider is, I think, wrong in uniting this genus with Lafoea. It differs not only in 

 having a floor to the hydrotheca but in far more important points connected with the 

 gonothecae, which arise from the same tube of the hydrocaulus as the hydrothecae, are like 

 the latter in shape, and are scattered, and not clustered into a coppinia or scapus. 



8. Lictorella halecoides (Allm.) subsp. (3, p. 472 ; 6, ii. p. 35). (PI. LXIX. fig. 3.) 



The specimens differ from Allman's in two ways: (1) the side branches are not themselves 

 branched. This, however, may depend on the smaller size of the colony. (2) The ends of 

 the branches are divided into internodes, but only some of the hydrothecae have jointed 

 stalks. The branches are pinnately arranged as in L. cyathifera Allm. and the Shetland 

 specimens of L. halecoides, and not irregularly as in the Cape York specimens. The shape 

 of the hydrothecae, though it is not so constant as in Allman's figures, is in some cases 

 absolutely the same as in that author's specimens. I much doubt the distinctness of this 

 species from L. cyathifera (6, ii. p. 36). 



The gonothecae have already been described in this paper (p. 836). 



Dredged in Kolumadulu and N. Male Atolls in 24 and 20 fathoms respectively. 



9. Lictorella scandens (Bale) subsp. (8, p. 758). 



This species must be removed from Lafoea, where Bale placed it, and stand here on 

 account of the characters which I have mentioned above. The present specimen differs from 

 Bale's type in having no joint in the stalk of the hydrotheca. It was found as an overgrowth 

 on Synthecium tuhiger dredged in N. Male Atoll from a depth of 20 fathoms. 



