478 LICHENOPOllIDJ?. 



Laurencia papillosa and other weeds, shallow water (A. 

 W. Waters). 



RANGE IN TIME. Pliocene, Bruccoli (A. W. Waters). 



LICHENOPORA VERRUCARIA, Fabricius. 

 Plate LXIV. figs. 4, 5. 



MADREPORA VERRUCARIA, Fabr. Faun. Groenl. 430 : ? Linn. Syst. ed. x. 793. 



? TUBULIPORA IIISPIDA (part.), Johnst. B. Z. ed. 2, 268. 



? DISCOSPARSA HISPIDA, Heller, Bryoz. d. Adr. M. 47*. 



DISCOPORELLA VERRUCARIA, Smitt, loc. cit. 405 & 479, pi. x. figs. 6-8, pi. xi. 



figs. 1-6: Busk, B.M. Cat. iii. 31, pi. xxviii. figs. 2, 3. 

 LICHENOPORA VERRUCARIA, Smitt, Bryoz. Nora Zembla, (Efv. K. Vetensk. 



Ak. Forh. 1878, no. 3, 15. 



Zoarium subcircular, very convex, at times subconical, with 

 a small central area destitute of cells, the laminar border 

 narrow. Zooecia rather stout, moderately raised, dis- 

 posed more or less regularly in radiating lines, not con- 

 nate, frequently traversed by longitudinal ribs ; orifice 

 obliquely elliptical, the margin carried up into a tall 

 acuminate process ; cells round the border of the disk 

 not elevated, quincuncial, orifice subcircular. Ocecium 

 an inflation of the surface of the disk ; orifice trumpet- 

 shaped. 



THIS is a small species, with the zoarium always simple, 

 and the cells, which are proportionally large, discon- 

 nected and arranged in short, radiating rows. The orifice 

 is for the most part elliptical, and the upper margin is 

 elevated and acuminate; occasionally the peristomc is 

 bifid. The zooecia are generally buttressed in front by 

 longitudinal ribs, which are sometimes serrate. 



* It is a matter of extreme difficulty to determine the synonymy with any 

 certainty in this section of the Oyclostomata. Heller identifies his species 

 with the M. vcrrucaria of Fabr. ; but his diagnosis is quite insufficient. 



As Busk has already pointed out, Smitt has wrongly referred D. 

 uiilii. to the prrsent species. 



