26 







Unfortunately the label of these specimens has been lost, but I know that 

 they came either from off the Konkan coast or from off the Laccadives, and 

 from a depth not less than 444 fms. 



This species is characterized by the remarkably uniform size of the septa. 



Named in memory of Captain Moresby of the Indian Navy, a marine 

 surveyor whose work in these seas is well known through Darwin's " Coral 

 Reefs." 



xii. CTATHOHELIA, Edw. & H., Martin Duncan. 

 21. Cyathohelia axillaris, (Ell. & Sol.). 



Madrepora axillaris, Ellis and Solander, Nat. Hist, of Zoophytes, p. 153, pi. xiii. fig. 6. 



Cyathohelia axillaris, Edwards and Haime, Hist. Nat. Coralliaires, 11.110: Duncan, P. Z. 8. 1876, p. 438 : 

 Moseley, Challenger Deep Sea Madreporaria, p. 175. 



A small, undoubtedly "living," branch, together with a dead one, was 

 dredged with numerous living branches of the last-mentioned species, off the 

 Malabar coast, probably at 444 fathoms, or at a still greater depth. 



This coral had also been dredged off Madras, at 88 fms. 



Our specimens are identical with some in the Indian Museum from 

 Japan. 



Distribution : Japan and Moluccas, Bay of Bengal, Malabar Sea. 



22. ? Cyathohelia formosa, n. sp. PI. iii. figs. 2, 2. 



This species appears to be a Cyathohelia although some of its branches do 

 not exhibit the characteristic gemmation of that genus, and although the two 

 crowns of pali are not distinctly recognizable and the septa are fewer. 



In typical branches the gemmation is regularly dichotomous, and leaves 

 the parent calice immersed between, but not very much compressed by, the 

 bases of its pair of successors. 



The surface of the branches is snow-white and perfectly smooth to the 

 naked eye, though under a lens it is finely frosted and sometimes, but not 

 always, finely striated. 



The free cups are circular and moderately deep and have an edge slightly 

 scallopped by the moderately exsert septa, which do not much fill up the fossa. 



The septa are in six systems and three cycles. Those of the first two 

 cycles are equal in size, and opposite to each one of them is, generally, a large 

 twisted foliaceous palus. But the pali are very irregular in size, and one or 

 two are occasionally absent. The septa of the third cycle are small and in- 



