vine: polyzoa of the wenlock shales. 
191 
Diastoporella consimilis, Vine, Quart. Journ. Geol. Soc, Feb. 
1882, p. 58. 
Diastopora (Aiilopora) consimilis. Vine, Brit. Assoc. Rep., 
II. 1881. 
Diastopora consimilis. Vine, Quart. Journ. Geol. Soc, Feb. 1882, 
p. 58. 
Diastoporella consimilis. Vine, Brit. Assoc. Rep. Foss, Polyzoa, 
IV., 1883. 
Zoaria encrusting by a single layer, a fragment of coral. 
Zo?ecia tubular, rather regular in series. As several colonies are 
found upon the same coral, a remarkably irregular character is given 
to the associated zoaria. Cell mouths circular, with well formed 
peristome, slightly less than the diameter of the tubes. Six zorecia 
occupy the space of a line measured across the mouths of the cells, 
and two-and-a-half to three, lengthwise, in the same space. 
Habitat : On shells, corals, etc. On Meristella tumida, Gotland 
(Dr. Lindstrom). 
Localities and Form: Wenlock shales: Wenlock limestone. Upper 
Silurian, Gotland; Lower Ludlow (?) Ledbury (School of Mines Cat.) 
Devonian limestone, Padstow (Salter), as Berenicea M'Coyii, Salter. 
(Middle Devonian.) 
Cabinets: My own; Mr. Longe, F.G.S., Cheltenham; School of 
Mines, Jermyn Street, London. 
The example of this species presented to me by Dr. Lindstrom, 
encrusting a specimen of Meristella tumida, has enabled me to check 
the above description, which was diagnosed from Mr. Longe's Wen- 
lock limestone form, both of which are fa: more robust than my own 
Wenlock shale specimen from the Buildwas beds. 
This is the only species of the true tubular Diastopora type that 
is known to me in the Palaeozoic rocks of this country. ^Ir. Ulrich 
describes, as previously stated, two species of Berenicea, only one of 
which I can regard as an ally of the present form. 
Berenicea primitiva, UL, Journ. Cin. Soc. Nat. Hist., Oct., 1882, 
p. 156, pi. VI., fig. 4. 
Mr. Ulrich gives as one of the characters of this species, the 
following: ''Cell apertures usually about twice their ovra diameter 
