BULLETIN 59. UNITED STATES NATIONAL MUSEUM. 113 



Mr. J. Stanley Ci in 'diner does not accept the reference of Uydosertii and DhmeriH 

 to the synonymy of Fiinsjia." He says regardinaf Oycloxei'is: "The successive fusion 

 of tiie .scj)ta of the hiii;her cycles (2-1 or 4S) and the elevation of the e(%es uf the 

 intervenino septa to the same level as those of the larger septa (i. e., the lower 

 cycles) immediately after this fusion has talciMi ])iace is further a most characteristic 

 feature of the genus." 



(iardiner previous!}''' had considered ('i/rlo.scrix separable from Fungia because 

 "tile primary septa in ^yc/''.s-«v',s' are very definitely six in number, the secondaries 

 not reaciiing cpiite so far into the calice and having the tertiaries fused to them. In 

 the young<'st instar that I examined there are six thick, subequal septa, and in the 

 youngest Fuiujia found by Bourne ' twelve septa are present, of which six are dis- 

 tinctly larger than the others.'" 



On page 172 of the papei- cited, (iai'diner says: " (.'ydoxi'rix differs from 

 Fniujia as described by Duncan mainly in the fact that the theca in the former is 

 imperforate." 



The differences between Cyeloxt-ris and Fmujia are therefore: (1) The wall in 

 CycloKcrix is imperforate, in Furujia perforate. (2) In CydostrU there are originally 

 only six septa, whereas in Fungia there are twelve. (3) There is the supposedly 

 peculiar fusion of the septa. 



There has been considerable controversy concerning the generic validitv of 

 Diaseris. Mr. (Jardiner, in his Madreporaria of the Maldive andLaccadive Islands,* 

 says: "The division of the coralluni into segments, each of which includes a part of 

 the axial fossa, seems to be in certain species of Fungids a regular and normal 

 method of reproduction by asexual means." Quehli. in Jiis report on the reef 

 corals of the ('haUt-ngef expedition ([). 119). states empliatically that he had speci- 

 mens of J)luj<<rii< freyceiuti that were of the Cijdoferh-'iovxw. Doderlein, in his 

 Korallengattung Fungia, says that he iuid l>!aseris-iovm specimens of Oydoseina 

 put, 11, 1 and (^yil<)x,r4s-ioxw\ specimen^ of J >iiix,r!f< ilixforfu. 



1 decided to make a careful t>xamination of all the material in the United States 

 National Museum in onh'r to test the supposed validity of the three genera, Cydoneris, 

 JJiux,-rix. and Fungiu, and have presented the data obtained under three headiiiirs, 

 CydoxtT/'x, J}!itxenx, and Fungia. Under each of these headings 1 have compiled 

 from Doderlein the specific names that liav(< been applied to forms belonging to each 

 group, then 1 have listed the species recognized l)y him as valid, sunuuai'izing under 

 each the synonymy given by him, and ha\e called attention to .some specific names 

 that are not recognized, but were not placed in an}- synonym}'. This summary and 

 remarks are followed by a list of the species in the United States National Museum. 

 Then 1 give a talndar statement of the results of a macroscopic study of the wall and 

 septa of each species.'' 



« Fauna and Geojrra]ihy of the Maldive and Laccadive Arcliipelagoes, II, Siii>. I, pp. 944, 945. 



'' Wil ley's Zoological Results, p. 175. 



<■ Fauna of the Maldive and Laccadive Archipelagoes, II, Sup. I, \<. 945. 



''The descriptions and figures of the three species of which I am the author were published in my 

 Three New Fungi;e, with a de.scription of Fitiujin iinumh/id Klunzinger and a note on a gi>ecunen of 

 Fungia concimui Verrill, Proc. V. S. Nat. Mus., XXX, 190(;, pp. Si'7-8:5:?, pis. lxvii-i„\.\iv. 



•.i->:m—o- H 



