304 Rev. T. Hincks on the 



Familj EscharidsB (part.) , Smitt. 

 Lepealia, Johnston (part.). 

 Lepralia foliacea, Ell. & Sol. (sp.), var. bide7itata,K.-Fidw. 

 Tlie variety is not mentioned by Heller. 



Lepralia complanataj Norman. (PI. IX. fig. 4.) 

 Memhranipora Smittii, Manzoni, Bryoz. foss. Ital. Contr. iv. pt. 2, pi. iii. 



fig- 16. 

 Mieropora complatiata, Hiacks, Brit. Mar. Pol. p. 175, pi. xsiii. 



figs. 8, 9. 



This species is wrongly referred to the genus Mieropora in 

 my ' History Brit. Mar. Pol.' The cells are surrounded by 

 strongly-marked raised lines, but they do not exhibit any of 

 the essential characters of the Memhraniporinoi. There is no 

 depressed area ; the structure is in all respects that of a typical 

 Lepralia. The specimens from the Adriatic, which are in fine 

 condition, resemble the form described by Manzoni from the 

 Italian Tertiaries in having an elongate marginal callosity on 

 each side, extending downwards for some distance from the 

 inferior margin of the orifice. This is a striking feature, and 

 there is scarcely a trace of it in British examples. The orifice 

 exhibits the shape which is characteristic of the restricted 

 genus Lepralia. 



Range. Italian Tertiaries ; Great Britain. 



Smittia, Hincks. 



Smittia trisjpinosa^ Johnston, form spathulata^ Smitt. 

 (PI. IX. figs. 3.) 



Escharella Jacoiint, var. sjjathulata, Smitt, Flor. Bryoz. pt. 2, p. 59, 

 pi. X. fig. 200. 



Zooecia ovate, quincuncial, very moderately convex (not 

 deeply sutured), punctured round the margin ; surface granu- 

 lous or roughened, in some states punctate, commonly in- 

 vested with a lustrous epithecal covering, no marginal lines ; 

 orifice (secondary) elongate, orbicular above, produced below 

 into a pointed spout-like sinus ; peristome much elevated, 

 thin, rising into a prominent point on each side at the 

 entrance of the sinus ; two or three marginal spines ; a central 

 denticle, usually small and square-topped, on the primary 

 margin within the sinus, and two lateral projections. Avicu- 

 laria usually numerous and multiform ; frequently a small 

 one with pointed mandible immediately below the sinus or 



