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No. XIX.—THE STYLASTERINA OF THE INDIAN OCEAN. : EICAT. 
By Sypnry J. Hickson, /.2.S., and Haren M. Enexannp, ISc., Avz6® : Ne 
Victoria University of Manchester. . i bee 
(Communicated by J. Stantry Garpiver, M.A., F.R.S., F.L.S.) | Bethy /: 
wy, “as®: 3 
(Plate 44.) XW 6 
Read 4th June, 1908. 
THE small collection of Stylasterina collected by Mr. Stanley Gardiner, F.R.S., presents 
some features of interest. 
A new species of Distichopora from deep water helps to bridge over the gap between 
this genus and Sporadopora. A new species of Sporadopora is of interest, as it is the 
first time since the discovery of the type species that the genus has been found. The 
rediscovery of Spinipora echinata is of interest for the same reason. 
The following is a list of the species in the collection :— 
Stylaster eximius, Kent. 100 fms. 
Stylaster minimus, H. & EK. 1-200 fms. 
Stylaster, sp. 75 fms. 
Allopora sp.? 6-120 fms. 
Distichopora violacea, Pall. Shallow water. 
Distichopora profunda, sp. n. 120-150 fms. 
Sporadopora providentie, sp. nu. 125 fms. 
Cryptohelia ramosa, H. & E. 120-150 fms. 
Conopora tenuis, Moseley. 75-150 fms. 
Conopora dura, sp.n. 125 fms. 
Spinipora echinata, Moseley. 75 fms. 
We may take this opportunity of stating that since the account of the genus Willepora 
in the ‘Cambridge Natural History’ was written by one of us (H.) Mr. Gardiner has 
recorded the occurrence of this coral in depths greater than 15 fathoms. He found it at 
depths of 25 fathoms off Funafuti and at depths of 40-50 fathoms off the Maldives (1). 
Genus STYLASTER. 
1. Stylaster eximius, Kent, facies altus, H. & E. 
Stylaster elegans (?), Duchassaing & Michelotti, Les Coral. des Antilles, Suppl. p. 68, pl. ix. fig, 4. 
Stylaster eximius, Kent, Proc. Zool. Soc. 1871. 
Stylaster fac. altus, Hickson & England, Siboga-Expeditie, Mon. viii. p. 9, pl. i. figs. 1-3. 
Several broken specimens, some in spirit and some dried, were obtained in 100 fathoms 
off the coast of Mauritius. They resemble very closely the specimens of the species 
obtained by the ‘ Siboga’ in the Malay Archipelago at depths of 27-54 metres. The dried 
specimens are pale cream in colour. 
SECOND SERIES.—ZOOLOGY, VOL. XII. 47 
