NO- 1473. SOME NEW FUNGLE—VAUGIIAN. 831 



Locality. — Unknown. 



Type.— C'a.t. No. 110, U.S.N.M., U. S. Expl. Exped. specimen. 

 IVote.—l have described and ficrured the specimen, as the species is 

 rare and not well known. Doderlein had only two specimens. 



Group of F. FUNGITES (Linnasus). 



FUNGIA MADAGASCARENSIS, new species. 



Plates LXXII and LXXIII; Plate LXXIV, tij,'. 3. 



Corallum large, heavy, strongly arched, base concave, deformed, 

 length exceeds width. Wall perforate, with numerous slits and pits. 

 Costffi of two kinds, spined and without spines. Between each pair of 

 spiniferous cost» are from one to three much thinner and less prominent 

 costffi that do not bear spines. Of the spine-bearing costae every other 

 or every fourth is usually thicker and somewhat more prominent than 

 the intervening ones. The larger costaj may be as much as 2.5 mm. 

 thick. The spines are tall and thick, the larger ones as much as 2 

 mm. in diameter near the base and i.S mm. in height. Rather often 

 they are compound and are frequentl3^ forked at the end. The shanks 

 of the spines are smooth, glabrous, the tips secondarily spinulose. 

 Toward the center the costw become indistinct. The central area is 

 covered by coarse spines similar to, but smaller than those on the costas. 



Septa, at the periphery unequal or subequal; above they are usually 

 of about three different heights and four or five different thicknesses, 

 the largest septa ver}^ thick, as much as 2.5 mm. The others graded 

 in size to the youngest which are thin and closed wedged in between 

 the older septa, they are so crowded that the faces almost touch. All 

 of the septa coarsely dentate, on the larger septa 3 to 5 to 1 cm.; their 

 height 3 to 4.5 mm.; the}' may terminate as blunt st3des, or be irregu- 

 larly serrate in form. Irregularly developed tentacular lobes pres- 

 ent. The septal faces are almost glalirous — to the naked eyes the}' are, 

 but with a rather high-power hand glass, very minute, low granula- 

 tions can be discovered. S3'napticula can not be seen from above. 



Columella apparently absent. 



Dimensions. — Length, 177 mm. ; breadth, 145 nun. ; height, 100 mm. ; 

 depth of concavity of base, 55 mm. 



Locality. — Madagascar, R. W. Shufeldt, collector. 



Type.—OAi. No. 21,141, U.S.N. M. 



Affinities.— Thh species belongs in the group with Fun gia fungi tes, 

 in spite of the suggestion that it may, because of having costte with- 

 out spines, belong with F. danai. The costal spines, when they are 

 not double pointed or compound, are typically like those of F. fungi- 

 tes; they are subconical with smooth sides, pointed and show a few 

 projecting trabecular on the tips, but could not be called granulate. 

 The almost smooth sides of the septa are like those of F. fungltes. 



