lytoLLuscoiDAi 306 
Polyzoaiy brandling or reticulated, with accessory pores at the back and 
between the cell-openings Idmoneidje. 
I. The cell-openings irregular or in complete cross rows. 
Horneraj Lam. 
II. The cell-openings regular ; cross rows converging towards middle line. 
Idmonea, Lam. 
Tubuliporid;e. 
Reuss describes as a new species Pt'ohoscina conjlucns. Denkschr. Ak. 
Wiss. Wien, p. 34, pi. 10. fig. 11. 
Diastoporid^. 
Defrancia monostichaf sp. n., Reuss, Sitzgsber. Ak. Wiss. Wien, 1864, July, 
p. 207. ! 
CERIOPORlDiE. 
Dr. Reuss describes {t. c.) Radiopord mndherqeri (p. 208), R. lattcodct 
(p. 675), R. goldfussi (p. 676) = t)efrancia steUaitt^ Reuss. A new genus, 
is proposed for Radiopora iahulifera^ Romer (p. 677) j some very perfect spe- 
cimens of this interesting form are figured, pi. 8. figs. 1 - 4 . Heteroporella la- 
ticosta (p. 682), H. deformis (p. 683), Ceriopora orhiculata (p. 683). 
J. 0. Ubaghs (1. c.) describes as new species Spiroclama canalifera (p. 60) 
and Stellocavea coronata (p. 61), 
X 
1865 . [voL. II. 1 
