204 J. 3. GARDNER—DESCRIPTION AND 
A new bed, about 3 feet thick, of compact dark clay, next rises, 
containing abundant seeds and fruits*, which are compressed, not 
so well preserved as in the former fruit-bed, and containing, in 
addition, various dicotyledonous leaves, including a Dryandra, and 
also Cactus-spines, as well as fragments of a broad, apparently 
Musaceous leaf. 
From a point a very few yards west of the last section, and in 
the marine beds numbered 4 in the preceding section, were obtained 
several Crustaceans. The beds here show extremely well the 
passage from marine to brackish and freshwater, and are as follows, 
descending :— 
1. Dark sands with green grains, broadest and lightest at the top, contain- 
ing masses of Ostrea dorsata? (coated with Flustra), an Arca (apparently 
A. appendiculata), a Modiola (probably M. Nystiz), Tellina tenuistriata, 
and more rarely Calyptrea trochiformis?, Phorus agglutinans, Natica 
labellata, and a Cerithiwm. 
2. Liver-coloured clay (turning black on exposure) with abundant remains 
of Callianassa, and, more rarely, a shore-crab. Bryozoa, first detected by 
Carruthers, also aboundt. A Unio-like shell is also abundant, together 
with some smaller bivalves and a minute and very rare Planorbis? 15 feet. 
(The surface of the succeeding bed is eroded for about 6 inches, and 
filled in with the overlying clay, which has also formed small pipings. ] 
8. Stiff black clays passing into lighter liver-clays at bottom, and, after a 
break, into liver-clay with ferns. Very dark sandy clay. White or 
ash-coloured sand with lignitic bands. 380 feet. 
a great help to the correct determination of the leaves; as in cases where the 
form and character of a leaf would leave it doubtful to which of several genera 
it should be referred, the presence of fruits of any one of the genera to which 
the leaf might be referred would assist us to determine its genus, with a far 
greater approximation to certainty than if no such fruit existed. 
* The likeness of these to the Bovey-Tracey seeds called Anona is so extra- 
ordinary that if specimens from both localities were mixed they could not 
again be separated with certainty. 
+ Mr. Waters, who has kindly examined the specimens of Bryozoa obtained 
here, writes to me as follows, about them :— 
“The fossil Bryozoa from Bournemouth which you kindly allowed me to 
examine are (with the exception of one impression) all merely casts of horny 
species, and therefore do not permit any investigations into the shell-structure 
to be brought to bear. 
“ A few of the specimens are W/ustre, but, as none of the characteristic points 
are preserved, cannot be determined, since the only comparison that is possible is 
the size of the cells. 
“‘Mhere are, however, three specimens of great interest. These are casts of 
Diachoris, of which the lateral tubular connexions can be seen, and these are 
frequently broken off at the diaphragm, as is often the case in recent Diachoris. 
There are two protuberances in the cast, one on each side of the oral aperture, 
and these show that there were two rather large avicularia. The Bournemouth 
Diachoris has the distal and proximal ends in direct contact, as in Flustra and 
Carbasea, while in most Diachoris they are joined by a tubular connexion 
similar to the lateral tubes. 
“This, I believe, is the first time that a fossil Diachoris has been found, which 
on that account is of much interest. There are a few species now living in the 
Mediterranean ; but it is apparently much more common in the southern hem;- 
sphere. The Diachoris magellanicu, Busk, is the most common in the Mediter- 
ranean. It has one or two avicularia placed slightly more laterally than those 
in your specimen. 
“This mode of tubular connexion is not confined to Diachoris; for Membra- 
