422 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 14 



does not mention but which is one of the commonest species in the area 

 cited. On the other hand her figure 71 on plate 22 definitely shows a 

 lyrula and peristome of the smittinid type. 



The genus Holoporella Waters was not established until 1909, a 

 year after Robertson's paper was published. How so careful an observer 

 could confuse a celleporoid species with the Smittinidae is difficult to 

 understand, but it seems that is what happened as the description is 

 mostly that of H, brunnea and the figure also, with the exception of 

 the lyrula and peristome. The name should be dropped from the literature. 



Genus CODONELLINA Canu and Bassler, 1934 



Codonella Canu and Bassler, 1930:29, preoccupied and changed, 1934: 

 407, to Codonellina. 



The ovicell is hyperstomial, closed by the operculum, porous and 

 marginated. The frontal is a tremocyst. A median avicularium is placed 

 before the aperture. The peristome is salient and complete. The aper- 

 ture is suborbicular with a very concave poster; the peristomice bears 

 two false cardelles, limiting a broad rounded sinus (Canu and Bassler). 

 Genotype, Lepralia galeata Busk, 1852. 



The general appearance is that of a member of the Schizoporellidae, 

 but the delicate nature of the operculum, without sclerites, and the 

 suboral avicularium which communicates with an areolar pore on each 

 side, appear to ally it to the Smittinidae. 



Codonellina anatina (Canu and Bassler), 1927 

 Plate46, figs. 14-15 



Codonella anatina Canu and Bassler, 1927 :26. 

 Codonella granulata Canu and Bassler, 1930 :29. 

 Codonella granulatal^ Hastings, 1930:725. 



Zoarium encrusting in a thin, white, shining layer. Zooecia mod- 

 erately large, unusually variable, ranging all the way from 0.45 to 0.90 

 mm long by 0.26 to 0.45 mm wide, distinct with deep grooves; the 

 frontal is evenly arched, a tremocyst with numerous small pores, smooth 

 but becoming finely granulated in advanced calcification; the aperture 

 rounded or slightly quadrangular, about 0.16 mm in either dimension, 

 a pair of small but distinct cardelles limit a broad shallow poster. The 

 peristome is smooth and somewhat elevated all around the aperture. 

 A small pointed avicularium, directed proximally, is usually present 

 in the midline proximal to the aperture, but it is sometimes asymmetri- 



