BULLETIN 59, L'NITED STATES NATIONAL MUSEUM. 65 



Genus GARDINERIA, new genus. 



Diagnosis. — Calcareous tissues imperforate; new eoralla arising from tlie old by 

 internal geniniation, similar to that in Schr;)iryiitli>is p'ssilix Pourtales, except in 

 Gardinrria the parent corallite is not split. In the type species an older corallite 

 produces only one younger. Wall epithecate, as in Flahellum or Rhizotrochmi, 

 extendiiio- upward beyond the outer ends of the septa. Septa with entire margins, 

 ai'ched above, showing no definite cyclical arrangement, alternately larger and smaller, 

 all the larger and occasionally one of the smaller extending to the axis of the corallum. 



Wide paliform lobes occur on the inner ends of most of the larger septa. The 

 loose fi(«lo» of the inner edges oj^ these hihes and of tlie inner ends of a fe\o long septa 

 which do not have the lobes form a weak false columella. Interseptal loculi open to 

 tlielr hoftoms. 



Type-species. — Oardineria hawaiiensis, new species. 



Remarl-s. — This genus is most closely related to Duncania" Pourtales, character- 

 ized by Pourtales as follows: "Corallum attached, cylindrical, covered with a thick 

 wrinkled epitheca rising over tlie border of the calicle. Interseptal chambers f/lini) 

 up solidly from the bottom., a multiple pillared columella. Sometimes paliform 

 lobes."* The interseptal loculi in Gardinerla are so little tilled up that tiie wall is 

 translucent even at the l)ase of the corallum, and, as stated in the diagnosis of the 

 genus, the columella is false. HaplophyUia Pourtales is a closely related genus. It 

 has a strongly developed columella and the interseptal loculi are solidly lillcd at the 

 bottom. 



Mr. J. Stanley Gardiner, in his Turbinolid Corals of South Africa,'' describes a 

 coral under the name of Duncania cape?if<is, and remarks on the close affinity between 

 Duncania and HaplophyUia. It is difficult to understand how it has escaped the 

 attention of zoophytologists that de Koninck, in 1872'', proposed the name Duncania 

 for a Carboniferous coral, antedating Pourtales in the use of the name by two years, 

 and thus invalidating its later aj)plication to recent species. 



GARDINERIA HAWAIIENSIS, new species. 

 Plate IV, figs. 1, lo, \l,. 



The type specimen .seems to represent four individuals, there being onlj- a frag- 

 ment of the oldest; the second soon gave rise to the third, the base of the third 

 almo.st tilling the cavity of the second. The diameter of the third is IS. 5 mm. , height 

 of second and third combined. IH mm. In a half calice of the third are 16 septa 

 alternately larger and smaller. The fourth individual is '22 mm. tall and 33 mm. in 

 diameter. In form the corallites ai"e inversely conical, attached by the base and 

 some epithecal rootlets to the parent corallites. 



The wall is epithecate, with transverse stri;e and some encircling constrictions. 

 There are no definite costae, but there are some ill-detined discontinuous longitudinal 



a Mem. Mus. Comp. Zool., IV, "Hasaler Corals," 1874, p. 44. 



^ Tho contrasting portions of my cle8crii>tion of Gnrdiueria and of Pourtali's's description of Duncnnin 

 are italicized in order to cinpha.iize the differences. 



""Marine Investigations in South .Vfrica, III, 1!'04, pp. 120. 121, pi. i, figs. (v(-6c. 

 ''Nouvelles Recherclies sur lea Aniniaux fossiles du Terrain carbonifere de la Belgique, p. 107. 

 :{2;i01— 07 5 



