39 



XXV. Cycloseris Edw. & H. 

 Stat. 100. 6°ii'N., I20°37'.5E. 450 m. i Ex., dead and worn. 



60. The single corallum dredged is dead and mucli ground down, so that its specific 

 identity is lost. 



MADREPORARIA PERFORx\TA. 



V. Family Eupsammid.e Edw. & H , Duncan. 

 Five genera, including subgenera, are represented in the collection. 



XXVI. Stephanophyllia Michelin, Edw. & H. Duncan. 



Both of the Challenger species were dredged by the Siboga, along with a new and 

 nearly-related species. 



Synopsis of the Siboga species of Stephanophjllia. 



I. The columella is a spongy mass: the primary septa are quite independent . i. S. fonnosissiuia. 

 II. The columella is an elongate vertical lamella: 



I. The primary septa are in contact, near the middle, with the 



deltas on either side 2. S. coinplicata. 



II. The primary septa are independent 3.-5. fuu"-iilus. 



61. Stephanophyllia forniosissima Moseley. 



Stephanophyllia fonnosissiuia Moseley. Proc. Roy. See. 1876, p. 561, and Challenger Deep 

 Sea Madreporaria, p. 201, pi. IV, fig. 11, pi. XIII, figs. 6, 7, pi. XVI, figs. 8, 9. 



Stat. 95. 5°43'.5N., U9°4o' E. 522 m. 2 Ex. (small and dead). 

 Stat. 95.? „ „ „ 2 Ex. (large, living). 



Stat. 256. s°26'.6S., 1 32° 32'.$ E. 397 m. i Ex. (small, dead). 



Stat. 302. 10° 27'. 9 S., i23°28'.7E. 216 m. i Ex. 



The .Siboga specimens were obtained in much the same place as those of the Challeno-er, 

 namely off the Philippines and off the Kei Islands, with the additional locality further south 

 denoted by Station 302. 



> 



6\a. Stephanophyllia fonnosissinni Moseley, var. 



Stat. 45. 7° 24' S., ii8°i5'.2E. 794 m. r Ex. 

 Stat. 284. 8°43'.iS., i27°i6'.7E. S28 m. i Ex. 



Though at first sight these two specimens seem to be something obviousl\- distinct, a 

 detailed comparison reveals nothing of specific value. 



They difter from the typical form in the height and texture of the septa. The septa, 



