21 



Geographically the species have been found in : 



Pacific Ocean. Atlantic Ocean. 



C. pudica. C. platypoma. C. mosehyi. 



C. japonica. C. bal ia. C. piercei. 



C. ramosa. C. stenoponia. 

 C. pachypoma. 



i. Cryptohelia pudica Milne Edwards and Haime. 



MlLNE EDWARDS and Haime. Arm. des Sc. Nat., 3ième S er., t. XIII, p. 93, pi. 3, fig. 1, 1850. 

 Histoire Nat. des Coralliaires, t. II, p. 127. New Guinea. 



Stat. 177. 2° 24'. 5 S., i29°38'.5 E. N. of Ceram. 1633 — 1300 M. Several fragments. 

 Stat. 150? 0° 6' N., 129 7'. 2 E. Djilolo Passage. 1089 M. One fragment. 



The Siboga material of this species came trom about the same locality as the type 

 specimens; but, unfortunately, Milne Edwards does not give the depth at which his specimens 

 were found. The peculiarities of this species are its robust growth, the large size of the cyclo- 

 systems, the large broad lid, which completely covers the cyclocystem and the long but shallow 

 septa. The ampullae, which are not mentioned by Milne Edwards, occur as swellings at the 

 base of the lid. The cavity of the ampulla does not extend beneath the cyclosystem. 



It does not seem to us that Moseley's C. pudica is the same species as the one described 

 by Milne Edwards. The shape of the cyclosystems and their relation to the stem that bears 

 them is different. In Moseley's specimens the cyclosystems are not raised above the surface of 

 the coral or isolated from it, though the branches swell locally where they are situated. In Milne 

 Edwards' specimens the cyclosystems are stalked and the septa do not quite extend to the 

 edge. The lids are also different, being much smaller. The proportions of the lids are not the 

 same, they are not so broad in Moseley's specimens. In Moseley's specimens also the female 

 ampullae occur on either side of the cyclosystems, while in our specimens, which are evidently 

 identical with those of Milne Edwards they occur as swellings at the base of the lid. It appears 

 to us therefore that Moseley's specimens do not belong to the same species as those described by 

 Milne Edwards and we propose to constitute a new species for them called Cryptohelia moseleyi. 



2. Cryptohelia ramosa sp. n. Plate II, fig. 22 and 23. 



Stat. 122. i°58'.S N., i25°o'.5 E. N.E. of Celebes. 1165 — 1264 M. 4 fragments of one colony. 



This species forms a large and many branched flabellum with a height and breadth of 

 about 7^ mm. The branches do not anastomose. The base of the main stem is 3 mm. in 

 diameter; the axis at the base of the terminal branches about 1 mm. The corallum is of a 

 vellowish white colour. When calcined the usual longitudinal striations, into which the coenenchym 

 canals open are more clearly visible, the whole surface is also seen to be granulated, owing to 

 the presence of minute spines which are arranged more or less in transverse rows, giving a 

 slightly rough appearance. The cyclosystems, which are oval, with a long diameter of 1,6 mm. 



