416 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



Occurrence. — 



D. 5137. Jolo Light, Jolo; 6° 04' 25" N.; 120° 58' 30" E.; 20 



fathoms; S. Sh. 

 D. 5144. Jolo Light, Jolo; 6° 05' N.; 121° 02' 15" E.; 19 fathoms; 

 co. S. 

 Cotypes.— Cat. Nos. 8226, 8227, U.S.N.M. 



Genus NIMBELLA Jullien, 1903 



The frontal is smooth or granulose. The apertura is semilunar, 

 with festooned anter, and the poster is limited by two large cardelles 

 which cover it except at its middle, where a large rimule is formed; 



Fig. 162. — Genus Nimbella Jullien, 1903 



A, B. Nimbella limbata Jullien, 1903. A. A linear colony, X25. Each aper- 

 ture is surrounded by a wide areola. B. A zooecium, X 58. (After Jullien, 1903.) 



at each extremity of the poster there exists a rimule narrower or as 

 long as the median rimule. The peristome forms an aureola around 

 the aperture. The zooecia are surrounded by a perforated lamella 

 with large pores (translation after Jullien, 1903). 



Genotype. — Nimbella limbata Jullien, 1903. Recent (Azores). 



Family CELLEPORIDAE Busk, 1852 



This family and the genera then referred here, namely Holo- 

 porella Waters, 1909, Costazia Neviani, 1895, Osthimosia Jullien, 

 1888, Schismopora MacGillivray, 1888, Acanthionella Canu and 

 Bassler, 1917, and Kleidionella Canu and Bassler, 1917, retaining 

 Cellepora Linnaeus, 1767 for the reception of species with doubtful 



