126 EEroRT — 1884. 



lower margin elevated into a mucro ; in all cases destitute of a true sinus 

 and special pores.' — Hincks, p. 295. 



Mr. Hincks gives (p. 296) a brief synopsis of this group, made up of 

 three divisions : — 



I. Species -with a simple primary orifice. Genera: Lepralia, Um- 

 bomrta. 1 



II. Species with a secondary orifice differing in form from the primary. 

 Genera : Porella, Escharoides, Smittia, Phylactella. 



III. Species with a mucronate elevation of the peristome. Genera : 

 Mucronella, PalmiceUaria, Rhynchopora. 2 



I. With a simple primary orifice only. 

 Genus Lepealca, Johnston (part). 



' Zoo'cia usually ovate, with the orifice more or less horseshoe-shaped, 

 arched above, contracted at the sides, and with the lower margin entire 

 and generally slightly curved outwards. Zonrium incrusting, or rising 

 into foliated expansions, composed of one or two layers of cells.' — P. 297. 



153. Lepralia Pallasiana, Moll. (Eschafa). Busk, 'Crag Poly.' 

 pi. is. fig. 7; Waters, ' Bruccoli Paper.' 



Range. — -Pliocene : Bruccoli, Sicily, Crag. Living : Scandinavia, 

 British. 



154. Lepralia foliacea, Ellis and Sol. ; Manzoni, ' Brioz. Foss. Ital.' 



4th Contr. p. 18, pi. i. f. 4 ; pi. iv. f. 24. Waters, ' Quart. Jour. 

 Geol. Soc' vol. xxxviii., p. 268, pi. vii. fig. 3. ' There is a slight, 

 difference in the placement of the avicularia in the Australian 

 form.' — See paper by Mr. Waters. 

 Range. — Bairnsdale, Australia ; Italian and Sicilian Pliocene ; Bruc- 

 coli (Waters). Living, various localities. 



155. Lepealia peetdsa, Esper (Cellepora). 



Range. — Fossil: .Scotch Glacial; Pateolithic (A. Bell); Australia 

 (Waters). 



156. Lepealia adpressa, Busk=Le2J?vJwt lata, Manzoni, ' Bri. Plio. 

 Ital.' 1st Contr., pi. iii. f. 2. 



Range. — Fossil : Italian Pliocene, Manzoni. Living. 



157. Lepralia hippopus, Smitt. 



Range. — Post- Pliocene, Canada (Dawson). Living. 



158. Lepralia edax, Busk {Cellepora, ibid.), ' Crag Polyzoa,' p. 59, 

 pi. ix. fig. 6, pi. xxii. tig. 3 = Gumulipora anguloAa, V. 

 Munst., Rss. ' Septarien.' p. 63, pi. viii. fig. 12=L. edax, Waters, 

 ' Quart. Jour. Geol. Soc' vol. xxxviii. p. 270. 



Range. — Fossil: Australia, Mt. Gambier; Sellingen (Reuss.) ; Crag 

 (Busk). Living. 



159. Lepralia corruoata, Waters, ' Quart. Jour. Geol. Soc' vol. 

 xxxvii., p. 335, pi. xvii. fig. 60. S. W. Victoria. 



160. Lepralia monilifera, M.-Ed., var. annata, Waters, ' Quart. Jour. 



Geol. Soc' vol. xxxvii., p. 335, pi. xv. fig. 24. S. W. Victoria. 



161. Lepralia spatulata, Waters, 'Quart. Jour. Geol. Soc' vol. xxxvii., 

 p. 335, pi. xviii. fig. 87. S. W. Victoria. 



162. Lepralia oleldostoma, Smitt, var. rotunda, Waters, 'Quart. Jour. 



Geol. Soc' vol. xxxvii., p. 335, pi. xviii. fig. 92. S. W. Victoria. 



1 T'mhonclla in text, pp. 296 and 316. 



- The genus Rhynchopora, is not given by Mr. Hincks in the introduction. I have, 

 however, included it : see p. 3. 



