IX 



conclusion that K. (inir/di^, Whitelegge, and K. paUbhi, Hiles, should be included 

 in the older species K. koreni, Wright and Studer. 



The specimens of Farms in this collection are more numerous and in 

 better preservation than those in the Deep Sea Collection, and we have been 

 led to merge /'. indica, Thomson and Henderson, in F. /ruticosa, Verrill. 



We have suggested that Acantliajorgia spinosa, Hiles, should be merged in 

 A . murirata, Verrill, and that A. aspera, Pourtales (somewhat vaguely described), 

 is not far off. 



An attempt has been made to give greater definiteness to Verrill's genus 

 Anthoffoiylu, to which two new species are referred. It seems to us, however, 

 that Studer 's A. japonica, with an operculum tentacular and not calycine, can- 

 not be included in this genus. 



In connection with the genus MuriceUa, we have proposed an emended 

 diagnosis and have taken a comparative survey of the well-defined species 

 known to us at the time of writing. Acquaintance with transitional forms has 

 led us to merge M. re//hnensis, Thomson and Henderson, with M. ramosa, 

 Thomson and Henderson. 



In describing Memicella gracilis, n. sp., we have sought to rehabilitate 

 Gray's genus, adding some more content to his definition and slightly en- 

 larging it. 



A study of a number of difficult transitional forms of Behryce has led us 

 to suggest that B. studerl, Whitelegge, and B. philippi, Studer, should be merged 

 in B. mollis, Philippi. 



A consideration of Kophohelemnon intermedium, n. sp., and K. hurgeri, 

 Herklots, in relation to species of Sderobelemnon has led us to the conclusion 

 that the two species named bind Kophohelemnon and Sderobelemnon so closely 

 together that the latter should be merged in the former. It does not seem to 

 us that there is any generic contrast, and we have given an emended diagnosis 

 of Kophohelemnon to include our new annectent species and Sderohelemnon 

 as well. 



Some of the specimens which we have referred to Cavernuktria ohesa, Val., 

 seem to us to show that Studer's C. madeirensis should be included in the same 

 species. Similarly, the advantage of having a considerable number of specimens 

 was seen in the case of C. lutkenii, KolL, for it became plain that this species 

 must include Moroffs C. habereri. In other words, there is no discontinuity 

 that we can perceive between C. ohesa and C. madeirensis, or between C. 

 lutkenii and C. habereri. 



The study of those beautiful and interesting colonies which we have 

 named as Lituaria hicksoni, n. sp., has led us to propose a somewhat enlarged 

 diagnosis of the genus. 



