132 RECENT MADREPORARIA OK THE HAWAIIAN ISLANDS AND LAYSAN. 



which is ill the anthocyathus stage and is i-eady to become detached from the antho- 

 caiiliis." There is also a detached young individual, which is a trophozooid or an 

 anthohlast. It docs not seem desirable to describe these young in detail, but the 

 diU'erence between them and Cari/opJnjIlhi should be noted. The smallest anthoblast 

 in figure '.ih of Plate XX VIII is distinctly a Fuiujia and bears little more resemblance 

 to Cnriji>j>lii/Uia than does the adult Fmxjia. The septal margins are dentate, some are 

 laceratcly dentiite, and even in that stage synapticula are present. These specimens 

 do not even suggest any very dose atfinity to the Caryophylliid corals, but they do 

 resemble Trochoxcrix oi- the young of Agarkia. 



Descript/lon of the f<yrm in which the tentacidnr lohe>< arc developed. — These 

 .specimens are distinguished from the typical form of the species principally 1)y the 

 possession of strong tentacular lobes rounded at the summits and projecting beyond 

 the level of the upper edges of the neighboring septa. Such specimens have been 

 named F. dmtiger<i, F. rerrifliana, etc., I)ut the tentacular lobes are too variable in 

 develoj)inent to furnish specific criteria. 



Ther(>, is another difference between the Laysan specimens and the tj'pical form; 

 the spines on the costa? are simple, rather pointed, and their surface is not nearly so 

 roughly granulated as in the specimen described as typical; minute granulations, 

 however, occur on the surface of the spines. 



The measurements are: 



"Specimen deformed. 



'^Specimen rereived from Prof. W. T. Brigham. The tentacular lolies are unusually strongly devt^oped. 



Localities. — Laysan, l-t specimens, Alhatmss. Pukoo, Molokai, 1 specimen; 

 Kaneohc, Oahu, 3 specimens; no definite locality, 1 dead specimen with 5 trcpho- 

 zooids attached; depth 3 to 6 feet; received from W. T. Prigham. Duerden also 

 collected specimens at Pukoo and Kaneohe. 



Remarl-x. — Additional observations on this species can be found on page 109, in 

 the discussion of the family Fungiidte. 



"Cf. G. C. Bourne, The anatomy of the Madreporarian Coral Fungia, Quart. Jour. Micros. Sci., 

 XXVII, 1887, pji. 293, 324, pis. x.\ni-x.xv: On the post-embryonic development of Fungia, Sci. 

 Trans. Roy. Dublin Soc, 2d ser., 1893, V, pp. 205-238, pis. xxii-.\xv. 



