ON RECENT POLYZOA. 567 
1. Genus Eschara, Pallas. 
2. ,,  Lepralia, Johnston. 
3. ,,  Chorizopora, Hincks. 
»  Porella, Gray. 
Escharoides, Simitt. 
Smittia, Hincks. 
»  Mucronella, Hincks. 
»  Aspidostoma, Hincks. 
9. ,,  Schizoporella, Hincks. 
10. ,, Gephyrophora, Busk. 
ll. = ,,. Myriozoum, Donati. 
12. ,, #Haswellia, Busk. 
13. ,,  Tessaradoma, Norman. 
14. 4, Gemellipora, Smutt. 
§ 1. Lower lip of primary orifice entire. 
§§ a. Hrect, bilaminar. 
Genus 64. Hschara, Pallas. 
Cellaria (pars), Reuss ; Acropora (pars), Reuss; Lepralia (pars), 
Hincks, Snvitt. 
‘Zoarium erect (sometimes decurrent) ; foliaceous or ramose, com- 
pressed, bilaminar.’-—Chal. Rep. p. 141. 
1. Eschara elegantula, D’Orb., ‘ Chal. Rep.’ pl. xx. fig. 6 
= KF. saccata, Busk, ‘Ann. Mag. Nat. Hist.’ 1856. 
2. » gracilis, Lamk., ‘Chal. Rep.’ pl. xxi. fig. 6 
= Cellaria and Acropora coronata, Reuss 
= Eschara Buskii, Tenison Woods. 
No Eschara are described by Mr. Hincks in his 
‘ British Marine Polyzoa’ ; and, so far as I am aware, 
only one species has been added to the list in his various 
publications since the issue of that work. 
3. » glabra, Hincks, Polyzoa from Barrent’s Sea, ‘ Annals,’ 
Oct. 1880, p. 281, pl. xv. fig. 6. 
4, »  perpusilla, Busk, ‘Linn. Soc. Jour. Zool.’ vol. xv. 1880, 
pl. xiii. fig. 5. Loc.: Arctic Sea. 
Associated with this species in the collection of Mr. 
Busk as described in the above paper is Hschara 
elegantula, D’ Orb. 
§§ 6. Crustaceous, unilaminar. 
Genus 65. Lepralia, Johnston. 
Lepralia, Hincks, Smitt (pars), Busk, ‘ Brit. Mus. Cat.’ ; Hemischara 
(pars), Busk. 
Zoarium unilaminar, erect or crustaceous, and loosely or wholly 
unattached, or adnate with the zocecia, incomplete behind. 
(a). Unilaminar, erect or crustaceous, free or loosely attached 
(hemischaran), ‘ Chal. Rep.’ p. 142. 
1. Lepralia celleporoides, Busk, ‘Chal. Rep.’ pl. xvii. fig. 4. 
2 5 japonica, Busk, ‘Chal. Rep.’ pl. xvii. fig. 5. 
