NO. 1526. 



CORALS FROM FRENCH SOMALILANB—VAVQNAN. 



261 



the naked eye entire, l)ut ji lens reveals microscopic dentations. The 

 specimens evidently arc a connected series. They ha\e suo-gested to 

 me that Doderlein's F. l-Junzlngerl may prove to l)c a variation 

 of F. plana. This, however, must be taken merely as a suggestion, 

 and not as an opinion, for the specimens studied do not warrant a 



conclusion. 



FUNGIA CONCINNA Verrill. 



. 1902. Fiiii-gia conchuia ])()i)Kru>Eix, Korallengat. Fungia, p. 113, j)l. xii, figs. 1-8; 

 pi. XIII, fig. 4. 



Three specimens, furnishing the following measurements: 



The bases are concave, in No, 1, 49 mm. deep; in No. 2, 18. .5 mm.; 

 in No. 8, 28.5 mm. 



These specimens have puzzled me exceedingly. As the smaller costje 

 are without spines, they appear to belong to the F. dmial group; 

 microscopic costal dentations and granulations, however, are present, 

 making it most probable that they should group with F. repanda. 

 The corallum base is imperforate; principal costte and those next in 

 size, thin, prominent, with slender, irregularly shaped, rough spines. 

 Septa thin, unequal, with coarse, irregular dentations, 3 to 10 to the 

 centimeter. Upper dental margins usually truncate; incisions between 

 the teeth acute. The specimens are not typical, but I believe the}' 

 must be referred to Verrill's F. concnina. 



FUNGIA FUNGITES (Linnaeus). 

 1902. Fimgiafungltefi Doderlein, Korallengat. Fungia, p. ll-Jfi, jils. xx-xxv. 



Sixteen specimens. 



Two variations are represented: 1. Corallum thin, near the margin 

 9 mm.; costiii thin, with small spines; septal margins tinely dentate. 

 2. Corallum thicker, near the margin 16.5 mm.; costs? thicker with 

 coarser spines; septal margins coarsely dentate. In the first form, 

 the corallum is fiat; in the second, arched above, with a concave base. 

 The two forms represent the extremes of the series, a more detailed 

 description seems superfluous. 



FUNGIA ECHINATA (Pallas). 

 1902. Fimgia pcJiiiiata Doderlein, Korallengat. Fungia, p. 101, pi. x, figs. 1-5. 

 Two specimens. 



