176 
CRISINA. 
2. muelleri (Beissel), 1865. 
Syn. Idmonea mmlleri, Beissel, I860. Bry. Aach. Kr. : Nat. Yerh. Holl. ^laat. 
'NYet. ser. ii. vol. xxii. p. 77, pi. ix. figs. lOo, 106. 
Filitparsa ,, Beissel, 1865. Op. cit. p. 84, pi. x. figs. 129-131. 
,, fimplex, von Beuss, 1874. Bry. ob. Plan. : Paljeontogr. 
vol. XX. pt. 2, p. 134, pi. XXV. fig. 1. 
? ,, ,, Marsson, 1887. Bry. Riig. : Pal. Abb. vol. iv. p. 35. 
Char. — Branches long and narrow ; lateral series of one, two, or three zooecia ; 
lateral roAvs subalternate or even opposite in places. Reverse side well rounded. 
Median zooecia may open immediately between the apertures of a pair of 
lateral zooecia or half-way between one pair of lateral apertures and the 
next pair. 
Distrib. — S enonian : Friedrichberg, near Aachen, in Kreidemergel ; ? Riigen. 
Turouian : Strehlen and AYeinbohla, Saxony, in Upper Planer. 
Subgenus RETICRISINA, noT. 
Stxontms. 
Rcticulipora [non Haime), d’Orbigny (1850), Marsson (1887), Pergens 
(1890), etc. 
Ectepora, part, Goldfuss (1827), etc. 
Ceriopora, pars, von Hagenow (1839). 
Idmonea, pars, de Blainville (1830), Marsson (1887), etc. 
Stichopora, d’Orbigny (1851, non 1852). 
Tub ig era, pars, d’Orbigny (1853). 
Pustulopora, pars, Romer (1840). 
ElAGlsrosis. 
CrismcB in wliich the branches are laterally extremely com- 
pressed, and the zoarinm is generally reticular. The 
apertures occur in long, vertical, sometimes • cniwed series, 
extending nearly or wholly across the lateral face of the 
branches. There is no reverse axis, and the reverse face may 
be rudimentary. 
Type Species. 
Reticulipora oUiq^ua, Orb., 1850. Senonian. 
Affinities. 
This snbgenns includes a group of species which have hitherto 
been refen’ed to the genus Reticulipora. That genus was founded 
