258 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXXII. 



Genus M^^ANDRA Oken. 

 MyEANDRA PACHYCHILA Ehrenberg. 



1834. Muxindra {Flatygyra) labyrintJiiot var. pachychila Ehrenberg, Corallenth. 



Roth. Meer., p. 99. 

 1879. Coeloria pacJiyeldla Klunzinger, Korallth. Roth. Meer., Pt. 3, p. 15, pi. i, 



%. 6. 

 Four specimen8 were collected. 



MiEANDRA LAMELLINA Ehrenberg. 



1834. Mseandra (Platygyra) lainellma Ehrenberg, Corallenth. Roth. Meer., p. 99. 

 1879. Cceloria arabica Klunzinger, Korallth. Roth. Meer., Pt. 3, p. 17, pi. i, 



figs. 1-3, 8; pi. IX, figs. lOa-lOc. 

 1902. Mseandra lamellina Yerrili., Trans. Conn. Acad. Sci., XI, p. 69. 

 1906. Mseandra lamellina v. Marenzeller, Riffkorall. Rot. Meer., p. 55. 



A splendid suite of twenty-two specimens of this species was obtained, 

 ])ut Klunzinger has described its variation in so much detail that I can 

 add practical!}" nothing- to what he has said. 



Genus SCLEROPH YLLIA Klunzinger. 



SCLEROPHYLLIA MARGARITICOLA Klunzinger. 



1879. SclerophyUia inargaritirola Klunzinger, Korallth. Roth. ^leer., Pt. 3, p. 4, 

 pi. I, fig. 12. 



This species is represented by three specimens, which, 1 think, should 

 be described. 



Table of measurements. 



" Measured to outer edges of the septa. 



Two of these specimens are young', Avhile the third is apparently 

 adult. Specimen No. 2 corresponds closely with Klunzinger's descrip- 

 tion and the smaller specimen represented in his figure. The bases 

 of specimens Nos. 1 and 2 of the table are almost as wide as the caiices, 

 and are attached to shells and various small objects. Epitheca extends 

 to the edge of the upbending of the wall. Specimen No. 3 is subcon- 

 ical. Its lower portion is badly corroded, and there is no epitheca 

 visible, but it may have been present and have been destroyed through 

 corrosion. 



The wall is thick, and has costse that correspond to all septa and 

 vary in prominence with the size of the corallum. In the large speci- 

 men they are very prominent at the calicular edge, but become sub- 

 obsolete inferiorly; the largest 4.5 mm. tall, and 1.5 mm. thick, with 

 thick, obtuse lobes or spines, that in some instances are 3 mm. long, on 



