vor.. xx. (3) 
DIBRANCHIATE CEPHALOPODA 
249 
ON SOME DIBRANCHIATE CEPHALOPODA FROM THE 
UPPER LIAS OF GLOUCESTERSHIRE. 
BY 
The late G. C. CRICK, F.G.S. 
Introduction. 
The first reference to the remains of Dibranchiate Cephalo- 
poda, other than Bilemnites, in the “ Saurian and Fish-bed ” 
of the Upper Lias of Gloucestershire seems to have been by 
Charles Moore in 1852, 1 but it was not until the publication 
of the same author’s paper “ On the Middle and Upper Lias 
of the South-West of England,” some fourteen or fifteen 
years later 2 that generic names were assigned to these 
Cephalopods, when Moore recognised them as being referable 
to the genera Geoteuthis, Munster, and Teuthopsis, Deslong- 
champs, but assigned no specific names to them. 
In 1871 Professor J. Phillips, in his Geology of Oxford, of 
Liassic Dibranchiate Cephalopods other than Belemnites, 
records (p. 131) a Geoteuthis, Acanthoteuthis speciosa, and 
an “ ink-bag ” from the Upper Lias of Dumbleton, Gloucester- 
shire ; and on pi. viii. (plate facing p. 136), fig. 40 of the 
same work he gives a small figure of a “ Dorsal plate of 
Geoteuthis with ‘ ink-bag,’ ” from the Upper Lias of Alderton, 
Gloucestershire. 
In 1879 Dr. Wright records in his ‘ Monograph on the 
Lias Ammonites of the British Islands,’ from the Upper Lias, 
zone of “ Harpoceras serpentinum ” — the zone including the 
“Saurian and Fish - bed ” — in Gloucestershire (pt. 2, 1879, 
p. 126) a Dibranchiate Cephalopod as “ Belemnosepia (ink-bag 
and osselets).” This is doubtless the same form referred by 
other authors to Geoteuthis. 
1 Proc. Somerset Archeeol. and Nat. Hist. Soc., 1852 (1853), pt. 2, p. 69. 
2 Op. cit. f vol. xiii. (1867), pt. 2, p. 183 ; also issued as a reprint of 67 pages. 
