Vol. 58. | JURASSIC OF THE SOUTH WALES DIRECT LINE. 735 
( Ammonites (Lioceras) opalinus, Rein. and several 
mutations. 
Amin. (Gramnoceras) aalensis, Ziet. 
Amir. (Pseudolioceras) compactilis, Simps. 
3) The Opautnip-Bep. | Astarte sp. 
Horizon of 4 Pecien aff. demissus, Phil. 
Ammonites opalinus. Gresslya abducta, Phil. 
Ceromya bajociana, VOrb. 
Cardium aff. truncatum, Sow.' 
Lima punctata, Sow. 
| Goniomya v-scripta, Sow." 
Ammonites (Dumortieria) Moorei (?) Lye. 
Belemnites aff. Voltzii, Phil. 
B. aff. tripartitus, Schloth. 
| Rhynchonella cynocephala, Rich. 
| Terebratula punctata, var. haresfieldensis, Day. 
(2) The BeLemyite- | 
& CynocEPHALA-BED, 
Horizon of { 
Ammonites Moorei. 
/ Ammonites (Grammoceras) dispansus, Lye. 
Amin. (Dumortieria) sp. nov. 
(1) The Lrars-BeEp. Bel, aff. tripartitus, Schloth. 
Horizon of < Lima Etheridge, Wr. 
Ammonites dispansus. | Astarte lwrida (/) Sow. 
| Celastarte sp. 
\ Opis trigonalis, Sow. 
Paleontological Notes. 
For the correct naming of the ammonites we are again much 
indebted to Mr. Buckman’s kind assistance. Ammonites (Du- 
mortieria) sp. was returned by him with the following note:— 
‘This is altogether new to me. I have not seen any species with so many 
coils in the umbilicus, and at the same time so thin.’ 
The Opalinid ammonites belong mostly to the mutation with 
moderately open umbilicus. 
The name Belemiutes aff. tripartitus is employed to cover long, 
tripartite belemnites which are nearly cylindrical in form. 
Belemnites aff. Voltzii (probably = B. compressus, conicus of 
Quenstedt) is employed to cover a large group of conical, com- 
pressed forms marked by three deep apical grooves. There seems, 
however, to be a complete passage from this type into the cylindrical 
form just noticed. 
Astarte sp.—This species occurs somewhat commonly, and excel- 
lent specimens may be obtained from the Opalinid-Bed. Though 
resembling A. elegans, Sow. in its marking and lunule, it differs 
in being larger and of rectangular form. 
Rhynchonelia cynocephala, Rich.—The form common at Sodbury 
is separated from the typical Ph. cynocephala by Mr. Buckman, 
under the name of th. cynoprosopa. 
1 We are much indebted to the kinduess of Mr. J. W. Tutcher, for the loan 
of these and several other specimens, from his very fine collection. 
