208 
TEEGENSELLA. 
Type Species. 
Idmonea hiseriata, Philippi, 18^14. Teii;. Ycrst. norcTw. Deutseh. 
p. 67, pi. i. fig. 15. Oligocenc ; Germany. 
COmpressa, Marsson, 1887. 
Syn. Bituhlgera compressa, Marsson, 1887. Bry. Riig. : Pal. Alih. vol. iv. 
p. 31, pi. iii. fig. 1. 
Chau. — Branches high and narrow, being very compressed laterally. Rows of 
apeiiures curved, about eleven apertures in each line. 
Distrib. — Senonian — Campanian : Riigen. 
REPTOFASCIGERA, d’Orbigny, 1853. 
[Bry. Cret. p. 685.] 
Diagnosis. 
Idmoniiclac with an aduatc zoaiium, and the apertures in well- 
raised, alternate, widely separated biserial rows. 
Type Species. 
Reptofascigera alternata, d’Orbigny, 1853: Pry. Cret. p. 686, 
pi. 744, figs. 4-6. Pergens, 1890 : Pevision, p. 377. Santonian : 
Saintes, Charente-Inferieurc. 
Affinities. 
This genus may be regarded as an adnate Bituhigera. It is not 
represented in the collection. 
PERGENSELLA, nov. 
Synonyms. 
Retepora, pars, Goldfuss, 1827. 
Idmonea, pars, von Hagenow, 1851. 
Diagnosis. 
Idmoniidm with erect zoarium, attached by a disc-shaped base. 
Branches simple and subcylindrical, with a keel along _tfio 
obverse side. 
Zooecia opening in two series, median and lateral. The apertures 
of the median series occur in crowded alternate rows along 
