18 ME. A. W. WATEKS ON 



expanding to about 10 millim. The cylindrical form, which may 

 be also with or without avicularia, is less common, and was 

 described as E. stenosticha. Lateral teeth are seen within the oral 

 aperture. Zooecia at the side alternate. 



Log. Yal di Lonte and Pyrenees (Bss.) ; Brendola ; Montecchio 

 Maggiore ; Pap-Falvi-Patak, Hungary (Perg.). 



29. Lepealia sETiiLjavis (Eeuss). 



Eschara semilcevis, Eeuss, Bryoz. von Crosaro, p. 270, pi. xxxii. 

 figs. 7, 8. 



Eschara larva, Eeuss, Toss. Polyp. Wien. Tert. p. 69, pi. viii. 

 fig. 29 ; Pergens, Bryoz. von "Wola Lu'zanska, p. 70. 



Eschara JSuessi, Eeuss, Bryoz. von Crosaro, p. 270, pi. xxxii. 

 fig. 9 ; Pergens, op. cit. p. 70. 



Eschara intermeclia, Gottardi, Brioz. foss. di Montecchio Mag- 

 giore ; Atti della Soc. Yeneto-Trentina di Sc. IS'at. vol. ix. p. 307, 

 pi. xiv. fig. 6. 



At the side of the aperture there is usually on one or both sides 

 a narrow spatulate avicularium, placed either slightly diagonal ox 

 directed straight upwards. The characteristic avicularia and ovi- 

 cells occur in specimens both with the zoarial growth of semila^is 

 and Suessi, showing that Eeuss was right in thinking that these 

 two might be only varieties of growth. In one specimen the bases 

 of five spines round the aperture are very distinct, the lower two 

 being the largest, and these two are figured by Gottardi in his 

 E. intermeclia. 



The zooecia seen at the side of the colony are alternate. 



Loc. Yal di Lonte (Rss. Sf Waters) ; Brendola ; Montecchio 

 Maggiore ; Priabona ; Novezzina ; Eonzo ; Wola Lu'zanska in 

 Galicia {Perg.) ; several localities in Hungary (Perg.). 



30. Lepealia bisulca (Eeuss). (PI. II. figs. 16-18, & PL III. 

 fig.l.) 



Eschara hisulca, Eeuss, Bryoz. von Crosaro, p. 270, pi. xxxii. 

 fig. 10. 



? SchizojporeUa hisulca, Koschinsky, Bryoz. alt. Tert. siidl. Bayerns, 

 p. 49. 



Eschara microdonta, Eeuss, ojd. cit. p. 271, pi. xxxii. fig. 13. 



Eschara fenestrata, Eeuss, op. cit. p. 290, pi. xxxii. fig. 5. 



This is an extremely interesting form on account of the great 

 difference in shape between the ordinary and ovicelligerous zooecia. 

 In the aperture there is usually an avicularium; and in this respect, 

 and also in the elevation at the side of the aperture, it resembles 

 Sniittia (Porella) cervicornis. Sometimes this avicularium takes a 

 spatulate form, and may be depressed (as in PI. II. fig. 17), or may 

 be much elevated (fig. 16). In many other species, in the same 

 way, a small oral avicularium is sometimes replaced by a large 

 spatulate one, as for instance in Schizoporella auriculata and Porella 

 cervicornis, &c. Occasionally, instead of the elevation at the side of 

 the aperture, two teeth are formed within it (PI. III. fig. 1). 



