E^'TALO^HOKA. 
227 
Zooecia very long. The peristomes are irregular in arrangement, 
and reflexed and well raised. The length of the reflexed 
portions is very variable. 
Goncecium small, conical. 
Dimensions. 
D. 4072. 
D. 948. 
D. 418. 
Diameter of branch 
•4 mm. 
*3 mm. 
•3 mm. 
Diameter of zooecia 
•lo „ 
... -lo ,, 
... *2 „ 
Diameter of aperture ... 
Length of exposed por- 
•1 „ 
... *1 „ 
... -1 „ 
tions of zooecia 
2-0-2-5 „ 
... l-S-2'0 „ 
1-5 
Distkibution. 
Upper Chalk : Bromley, Kent. 
Middle Chalk : Chatham. 
Chalk Detritus : Charing. 
Figuees. 
PI. X. Fig. 5. A fragment of a zoarium, X 10 dia. Middle 
Chalk : Chatham. Gamble Coll. D. 4072. 
PI. X. Fig. 6. Fragment of another zoarium, X 10 dia. 
Middle Chalk : Chatham. Vine Coll. D. 948. 
PI. X. Fig. 7. Another specimen with a gonoecium, X 6 dia.- 
Middle Chalk : Chatham. Gamble Coll. D. 418. 
Affinities. 
This long-celled delicate form resembles Entalopliora horrida by 
the thinness of its zooecia and by its shar^fly reflexed well-raised 
peristomes. The branches, however, are far more delicate than in 
that ‘species,’ the apertures are fewer and far more sparsely 
scattered. The specimen taken as the type was acquired by the 
Museum in the Gamble Collection, and had been determined as 
a new species by M. Pergens. With that opinion I concur, and 
therefore name the species after the distinguished Belgian 
bryozoologist. 
Its nearest ally is probably Entalophora geminata (Hag.) of which 
it may be an especially thin variety. At first I was inclined to 
regard it as a deep-sea representative of that species, but as typical 
E. geminata occurs associated with E. pergensi at Chatham this 
explanation is erroneous, and it seems necessary to separate the two- 
forms. E. pergensi is allied to the forms iconensis and sulgracilis 
of E, virgula (Hag.). 
