GRAPTOLITES OP VICTORIA. 
suspended by a nema, the secondary branches continue on the 
same slope as the funicle ; in other words they were not hori- 
zontal as is generally assumed for T. quadribrachiatus, see 
J. Hall (6, PL 5). 
Fig. 3. 7 etragraptus decipiens T. S. Hall var. bipatens nov. ; polyparies 
subvertically compressed, a. Obverse view ; sicula and funicle turned over, 
branches of second order flexed and contorted (No. 25097). b. Reverse view 
(No. 25016). c. Sicula turned over, funicle partly turned over and elongated, 
lower branches flexed (No. 25041). d. (No. 25087) ; e. (No. 25055) ; /. 
(No. 25058) ; g. almost vertically compressed (No. 25061) ; sicula apparently 
compressed against funicle. x2. 
The angle contained by pairs of secondary branches is 
between 100° and 105°. 
Whether the funicle is straight or angular when compressed, 
or the branch straight or flexed, depends on how the polypary 
came to rest ; this was usually on the distal ends of the branches, 
and it then became fixed with the aperture of its sicula opening 
downwards. The funicle and sicula would thus be compressed 
last, either vertically or slightly subvertically ; vertical com- 
pression would elongate the funicle and press the sicula against 
it (text figs. 3d-3g), but subvertical compression would cause 
funicle and sicula to bend over and display a lateral aspect 
(text figs. 3 a, 3 b). In one example (text tig. 3c) the sicula has 
been turned over and the funicle is elongated. The following are 
measurements of the funicle under different modes of com- 
pression : — 
Incidence of 
pressure 
Vertical 
Slightly 
Subvertical 
Subvertical 
Subvertical 
Shape of funicle 
straight 
slightly 
angular 
slightly 
angular 
angular 
Position of 
sicula 
elongated, 
compressed 
against 
funicle 
elongated, 
compressed 
against 
funicle 
elongated, 
turned 
over 
not 
elongated, 
turned 
over 
Length in mm. 
2.3 (Fig. 3d) 
2.5 ( „ 3 f) 
3.0 ( „ 3 g) 
2.5 (Fig. 3 g) 
3.2 (Fig. 3c) 
2.1 (Fig. 3a) 
1.7 ( „ 36) 
[1?1 J 
