124 
EEPTOMrLTISP A ESA . 
Peristomes scattered at tlie centres of zooecial groups, but very 
crowded at the margins. 
Dimensions. 
Type B. 4456. 
Distance of apertures ... -4 mm. ... 
Diameter of zooecia ... •25-’3 ,, 
Diameter of apertures ... ’ll-’to,, 
DisTEremoN. 
Upper Greensand : Cambridge. 
PlGUEES. 
PI. YI. Fig. 3. The young zoarium figured by Tine {op. cit. 
pi. ii. figs. 9a -c), X 8 dia. Upper Greensand: Cambridge. 
Jesson CoU. D. 1871. 
Affinities. 
This Bryozoan is represented in the collection by four specimens, 
all of which were labelled, and two of which were figured by Vine. 
The ‘ species ’ is most nearly aUied to Reptomultisparsa aggregata 
(Ess.),^ which closely resembles the specimen figured by Yine 
(Proc. Yorks. Geol. Soc. vol. ix. pi. ii. figs. 9a -c). The 
differences between the two groups of individuals are that in 
R. aggregata the zooecia are packed together more closely and 
more uniformly. 
D.1858. 
•4 mm. 
•3 „ 
■1--15 
D. 1871a. 
Figd. PI. VI. 
Fig. 3. 
•4-'7 mm. 
'3 M 
•15--2 .. 
LIST OF SPECIMEXS. 
B. 4456. The type-specimen. Upper Greensand. Cambridge. Yine Coll. 
Figd. Proc. Yorks. Geol. Soc. vol. iz. pi. ii. fig. 9. (The figxire 
is imsatisfactory.) 
D. 1871a. The zoaidum figured by Yine as showing the “ ovicells.” Upper 
Greensand. Cambridge. lesson CoU. Figd. Proc. Yorks. Geol. 
Soc. vol. iz. pi. ii. figs. 9a-c. The specimen is refignred on 
PI. YI. Fig. 3. 
D. 18715. Another zoarium on the same shde as D. 1871a. Upper Greensand. 
Cambridge. lesson CoU. 
D. 1858. A large encrusting specimen (on sUde). Upper Greensand. Cam- 
bridge. Jesson CoU. 
^ Frohoteina aggregata^ von Eeuss, 1872. Bry. unt. Plan. : Palaeontogr. 
vol. zz. pt. 1, p. 114, pi. zzviii. figs. 10, 11. 
