386 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxviii. 



4. Genus FUNGI AC YATH U S M. Sars. 



1872. FiDy/iaci/iilliiis M. Saks, Remarkable forms of animal life from great depths 

 off the Norwegian coast, I't. I, p. 60, 2>1. v, figs. 24-32. 



OrlguuU (jeneric diagnosis. — Corallum simple, free, without any 

 sign of attachment, discoid, base horizontal, flat, beneath radially 

 finely costate, no wall (theea) strictly speaking/' Calice subcircular, 

 upper maroin convex (septa tall), cri.spate. No columella, no pali. 

 Septa numerous, T) systems, forming 0-8 orders, primaries and secon- 

 daries nuich elevated, arched, transversely finely folded, upper mar- 

 gin faintly undulate, extending to the center, there irregularly lobed 

 and flexed, throughout their length extremely thin, prominent above 

 the outer margin of the calice. Calicular fossa rather large and uni- 

 forml}' depressed. 



Ti/jjc species. — FuiHjiacyafJiUs fragilis M. Sars, Remarkable forms 

 of animal life, etc., p. 58, pi. v, figs. 24-32. 



Distribution. — Deep w^ater, oti' the Norwegian coast. 



Bemarks. — Moseley (see p. 38.5) has raised a doubt regarding the S5^s- 

 tematic affinities of this coral, suggesting that it may be the same as 

 his BatJii/octis. Judging from the very careful description of G. O. 

 Sars* I am inclined to believe it a Turbinolid, and not a Fungid. 



MICRABACIID.^, new family. 



Diagiiosis of family.— 'y^hw\AQ fungids with solid septa and perfo- 

 rate w^all. 



Five genera are referred to this famih^: Micrabacia Milne Edwards 

 and Haime, Diafmgia Duncan, 3Iicros/nilia}^ohy, Podose?' is Duncan, 

 and AntiUoseris., new genus. 



TABLE OF DIFFERENTIAL CHARACTERS OF THE GENERA. 



I. Costse corresponding to intercostal spaces: 



Corallum circular, lenticular, broader than high. 



1. Micrabacia Milne Edwards and Haime. 

 Corallum with triangular piece extending to the center. 



2. Diafungia Duncan. 

 II. Costte corresponding to the septa: 



Columella strongly developed, corallum with narrow base, mural pores reg- 

 ular, eintheca thin 3. MicrosmiUa Koby. 



Columella small, base variable, mural pores irregular, epitheca present, vari- 

 able, dissepiments present 4. Podoseris Duncan. 



Columella, s. s., absent, mural pores irregular, epitheca absent, dissepiments 

 absent 5. AntiUoseris Vaughan. 



«This must not be taken literally. There is a wall, but it is horizontal. — T. W.V. 

 ^ Remarkable forms of animal life, etc., pp. 58-60. 



